{"title":"Seat Mounting Hardware","description":"\u003cp\u003eSeat mounting hardware is the bolts, kits, rubber grommets, and conical washers that fasten a kart seat to the chassis. Rubber grommets cushion the fiberglass shell at the bolt holes, and conical washers spread clamp load so the seat is less likely to crack around the mounts.\u003c\/p\u003e","products":[{"product_id":"conical-seat-washer-black-sold-each-km625b","title":"Kartech KM625B Black Anodized Conical Seat Washer - 8mm \/ 5\/16\" - Universal Fit","description":"\u003cp\u003eWhen you are upgrading your racing rig with premium performance parts, the Kartech KM625B Black Anodized Conical Seat Washer ensures your seat and ballast stay locked in under extreme G-forces. Designed specifically for 8mm and 5\/16\" flat head cap screws, this precision-machined aluminum washer delivers a centered, vibration-resistant clamping force that prevents hardware from pulling through your fiberglass or carbon fiber seat shell. By distributing the mechanical load evenly across a wider surface area, it eliminates the stress fractures commonly caused by standard flat washers during high-speed cornering.\u003c\/p\u003e\u003ch2\u003eSecuring Your Setup: Beyond Top Tire Brands and Best Helmets\u003c\/h2\u003e\u003cp\u003eYou spend hours researching the top tire brands and the best helmets to shave tenths off your lap time and keep yourself safe, but neglecting your seat hardware can instantly cost you a race. A loose seat shifts your center of gravity, disrupting chassis flex and handling. The Kartech KM625B conical washer guarantees that your seating position remains absolutely rigid, lap after lap. Whether you are building a fresh chassis from a bare go kart frame for sale, or you are fabricating custom drive train parts for an outlaw build, integrating these conical washers into your assembly is a non-negotiable step for professional-grade reliability.\u003c\/p\u003e\u003ch2\u003eEngineered for Maximum Durability and Aesthetic Appeal\u003c\/h2\u003e\u003cp\u003eCorrosion resistance and weight savings are critical in competitive karting. The KM625B features a stealthy black anodized finish that not only protects the aluminum from track debris and harsh cleaning chemicals but also seamlessly matches modern kart aesthetics. Sold individually, these washers are the perfect solution for mounting lead weights securely to your seat without damaging the resin. Don't let a cheap washer ruin your race weekend; demand the exact tolerances and proven durability of Kartech hardware.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications \u0026amp; Key Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Conical Profile:\u003c\/strong\u003e Self-centers 8mm or 5\/16\" flat head cap screws for a perfectly flush, zero-play installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Load Distribution:\u003c\/strong\u003e Prevents bolt pull-through and stress cracks in expensive fiberglass or carbon fiber racing seats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration-Resistant Seating:\u003c\/strong\u003e Maintains strict torque specs even under the extreme harmonic vibrations of 2-stroke and 4-stroke engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerospace-Grade Aluminum:\u003c\/strong\u003e Delivers maximum clamping force while keeping your overall kart weight to an absolute minimum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Anodized Finish:\u003c\/strong\u003e Provides superior corrosion resistance while offering a clean, professional look that matches any chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Hardware Compatibility:\u003c\/strong\u003e Engineered to flawlessly accommodate standard metric (8mm) and imperial (5\/16\") countersunk fasteners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Purpose Application:\u003c\/strong\u003e Ideal for securing racing seats, mounting ballast weights, or fastening custom bodywork panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I use a conical washer instead of a standard flat washer for my kart seat?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Standard flat washers do not provide a flush fit for countersunk (flat head) screws. The Kartech KM625B is specifically machined to match the angle of your screw head, which self-centers the hardware and distributes clamping force evenly to prevent the bolt from pulling through your fiberglass or carbon fiber seat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will these washers work with both metric and imperial hardware?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. The KM625B is engineered for universal compatibility with both 8mm and 5\/16\" flat head cap screws, making it a versatile choice for various kart chassis and custom builds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use these washers to mount ballast weights?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Absolutely. These washers are excellent for securing lead ballast weights to your seat. The conical design ensures the weight is held securely without damaging the resin of the seat shell, even under high-vibration conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many washers come in an order?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e These washers are sold individually. We recommend purchasing a full set to ensure all your seat and ballast mounting points have the same professional-grade, vibration-resistant hardware.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to use a specific torque setting when installing these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e While the washer helps maintain torque, always follow your chassis manufacturer's recommended torque specifications for seat mounting hardware to avoid cracking the seat material.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/metric-weight-bracket-short-32mm-kmwb32\"\u003eEfficient 32mm Short Metric Weight Bracket for Precise Kart Tuning\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/metric-weight-bracket-short-30mm-kmwb30\"\u003eKartech KMWB30 Short Metric Weight Bracket - 30mm Frame - CIK\/FIA\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/metric-weight-bracket-32mm-km235\"\u003eHigh-Strength 32mm Metric Long Arm Weight Bracket for Racing\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/metric-weight-bracket-30mm-km234\"\u003ePremium 30mm Metric Long Arm Weight Bracket for Karts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kartech","offers":[{"title":"Default Title","offer_id":52562261344574,"sku":"KM625B","price":5.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/weightmountingaccessories-conical-seat-washer-black-sold-each-km625b_ca22fa6f-73b7-455f-b310-d9bfffe94228.jpg?v=1763116451"},{"product_id":"conical-seat-washer-blue-sold-each-km625blu","title":"Blue Anodized Conical Seat Washer for Secure Kart Mounting","description":"\u003cp\u003eSecure your kart's components with precision using this blue anodized aluminum conical seat washer. Engineered to pair seamlessly with 8mm or 5\/16 flat head cap screws, it distributes load evenly, reducing wear on mounting points in high-vibration environments like the track.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability Boost:\u003c\/strong\u003e Anodized finish resists corrosion, keeping your setup reliable race after race.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Fit:\u003c\/strong\u003e Perfect for seat mounting hardware or weight accessories, ensuring everything stays locked in place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Edge:\u003c\/strong\u003e By preventing slippage, it helps maintain optimal weight distribution for better handling and quicker cornering.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSold individually (SKU: KM625BLU), this washer is a small but essential upgrade for any serious kart racer aiming to shave seconds off their lap times through superior organization and stability.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What size screw is this conical seat washer compatible with?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This washer is specifically engineered to pair with 8mm or 5\/16 flat head cap screws, ensuring a flush, secure fit for your kart's mounting points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I use a conical washer instead of a standard flat washer for my seat?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The conical shape allows the washer to seat perfectly into the countersunk holes of your kart seat or weight brackets. This distributes the clamping load more evenly, which prevents the fiberglass or plastic from cracking under high-vibration racing conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the anodized finish provide any functional benefit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the blue anodized finish provides a hardened, corrosion-resistant layer that protects the aluminum from the elements and track debris, ensuring the hardware remains easy to remove and adjust throughout the racing season.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are these washers sold as a set or individually?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e These washers are sold individually (per piece), allowing you to purchase the exact quantity needed for your specific seat or ballast mounting configuration.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/conical-seat-washer-silver-sold-each-km625s\"\u003eSilver Aluminum Conical Seat Washer for Precision Kart Setup\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kart Mfg","offers":[{"title":"Default Title","offer_id":52562261541182,"sku":"KM625BLU","price":4.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/weightmountingaccessories-conical-seat-washer-blue-sold-each-km625blu_19c83e9d-4c1f-443d-98c8-555afc6433da.jpg?v=1763116335"},{"product_id":"conical-seat-washer-red-sold-each-km625r","title":"Target Distributing KM625R Red Anodized Conical Seat Washer - 8mm \/ 5\/16\" ID - Universal Fit","description":"\u003cp\u003eLocking down your chassis with high-quality racing go kart parts is the difference between a podium finish and a DNF, and this red anodized conical seat washer delivers the exact clamping force needed to eliminate track-induced loosening. Designed specifically for 8mm or 5\/16\" flat head cap screws, the KM625R washer creates a flush, conical seal against your fiberglass or carbon fiber seat. When you are pulling high lateral Gs through tight apexes, standard flat washers dig into the composite, causing stress fractures and seat shift. This conical design distributes the load evenly, ensuring your seat and weight mounting accessories remain perfectly rigid throughout the most grueling heat races.\u003c\/p\u003e\u003ch2\u003ePrecision Hardware for Cheap Go Karts and Pro Chassis\u003c\/h2\u003e\u003cp\u003eWhether you are restoring a vintage chassis, upgrading cheap go karts for weekend club racing, or fine-tuning a national-level rig, hardware reliability is non-negotiable. The vibrant red anodized aluminum finish isn't just for aesthetics; it provides a hardened, corrosion-resistant barrier against track debris, fuel spills, and environmental wear. A rigid seat mount directly translates to better chassis feedback, allowing you to feel the track surface and optimize your tire grip.\u003c\/p\u003e\u003ch2\u003eSecuring Your Setup: Beyond Wheel Bolts and Engines for Sale\u003c\/h2\u003e\u003cp\u003eRacers spend hours searching for the perfect engines for sale or dialing in their tire pressures, but often overlook the critical fasteners holding the kart together. Just like high-tensile wheel bolts, your seat hardware must withstand extreme vibration and torsional flex. By integrating these conical washers into your weight mounting accessories, you prevent the lead ballast from vibrating loose and altering your cross-weight percentages mid-race.\u003c\/p\u003e\u003cstrong\u003eTechnical Specifications \u0026amp; Features:\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Load Distribution:\u003c\/strong\u003e Conical profile prevents stress fractures in fiberglass and carbon fiber seats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact Fitment:\u003c\/strong\u003e Precision-machined for 8mm or 5\/16\" flat head cap screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerospace-Grade Aluminum:\u003c\/strong\u003e Lightweight construction minimizes rotational and static mass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed Anodized Finish:\u003c\/strong\u003e Delivers superior corrosion resistance and a professional paddock aesthetic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration Dampening:\u003c\/strong\u003e Maintains torque spec under extreme RPMs and track-induced harmonics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Application:\u003c\/strong\u003e Ideal for seat struts, weight ballast mounting, and custom bodywork integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Stability:\u003c\/strong\u003e Eliminates seat shift for consistent driver feedback and smoother acceleration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I use a conical washer instead of a standard flat washer for my kart seat?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Standard flat washers can dig into fiberglass or carbon fiber seats, causing stress fractures and allowing the seat to shift under high G-forces. The conical design of the KM625R distributes clamping force evenly, protecting your seat material and ensuring a rigid, secure mount.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What size bolt is this washer designed for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This washer is precision-machined for 8mm or 5\/16\" flat head cap screws. It is designed to sit flush within the seat mounting hole for a clean, professional finish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use these washers for mounting lead ballast?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. These washers are excellent for weight mounting accessories. They help maintain torque specifications under extreme vibration, preventing ballast from vibrating loose and ensuring your cross-weight percentages remain consistent throughout the race.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the red anodized finish just for looks?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e While it provides a professional paddock aesthetic, the anodized finish also creates a hardened, corrosion-resistant barrier that protects the aluminum from fuel spills, track debris, and environmental wear.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many washers come in an order?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e These washers are sold individually (each), allowing you to purchase the exact quantity needed for your specific seat or ballast mounting configuration.\u003c\/p\u003e","brand":"Target Distributing","offers":[{"title":"Default Title","offer_id":52562261573950,"sku":"KM625R","price":4.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/weightmountingaccessories-conical-seat-washer-red-sold-each-km625r_b32731e0-050d-45ac-81e0-42e271ae5575.jpg?v=1763116336"},{"product_id":"conical-seat-washer-silver-sold-each-km625s","title":"Silver Aluminum Conical Seat Washer for Precision Kart Setup","description":"\u003cul\u003e\n\u003cli\u003ePrecision-engineered silver aluminum construction for lightweight strength.\u003c\/li\u003e\n\u003cli\u003eIdeal compatibility with 8mm or 5\/16 flat head cap screws in kart applications.\u003c\/li\u003e\n\u003cli\u003eEnhances weight mounting by providing a stable, conical interface that resists shear forces.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eTrack pros know that reliability starts with the basics—this washer delivers by preventing bolt pull-through, keeping your seat and weights firmly in place for optimal aerodynamics and speed.\u003c\/p\u003e\u003cp\u003eWhether tweaking your setup between heats or building from scratch, it promotes better organization at the pit, saving time and boosting confidence. Sold each (SKU: KM625S), it's a must-have for any kart enthusiast focused on peak performance.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What size bolt is this conical washer designed for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This washer is precision-engineered for use with 8mm or 5\/16-inch flat head cap screws, ensuring a perfect fit for standard kart hardware.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I use a conical washer instead of a standard flat washer?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The conical shape provides a self-centering interface that distributes pressure more evenly. This helps prevent bolt pull-through on plastic or fiberglass seats and resists shear forces better than a flat washer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this washer sold as a set or individually?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This item is sold individually (each), allowing you to purchase the exact quantity needed for your specific seat or weight mounting configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use these washers on my seat mounting bolts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, these are ideal for seat mounting. They provide a stable, secure interface that keeps your seat firmly in place, which is critical for maintaining proper chassis flex and driver position.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/conical-seat-washer-blue-sold-each-km625blu\"\u003eBlue Anodized Conical Seat Washer for Secure Kart Mounting\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kart Mfg","offers":[{"title":"Default Title","offer_id":52562262065470,"sku":"KM625S","price":2.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/weightmountingaccessories-conical-seat-washer-silver-sold-each-km625s_6488024a-6352-4638-b27e-49a45058f37c.jpg?v=1763116185"},{"product_id":"azusa-seat-grommet-only-sold-each-ae8316","title":"Azusa Thick Seat Grommet for Kart and Bumper Applications - Sold Each","description":"\u003cp\u003eUpgrade your mounting game with a single Azusa thick seat grommet, built tougher for demanding kart environments. At 1.25 inches in diameter and 3\/8 inch thick, it outpaces slimmer versions in durability, flexing to handle bumps without compressing.\u003c\/p\u003e\u003cp\u003eThe 3\/8-inch inner hole fits common bolts snugly, creating a seal that blocks debris and moisture. Use it on seats or bumpers to maintain alignment, ensuring your driver stays composed for sharper turns and higher speeds.\u003c\/p\u003e\u003cp\u003eWhy choose thick? It extends hardware life by cushioning impacts, reducing the need for frequent replacements and keeping your focus on racing, not repairs. Sold individually for targeted fixes.\u003c\/p\u003e\u003cp\u003eSKU: AE8316 – precision-engineered for pros.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I choose a thick grommet over a standard thin one?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The 3\/8-inch thickness provides superior vibration dampening and impact resistance. It prevents the seat or bumper from vibrating loose and protects your mounting hardware from premature wear caused by track bumps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What size bolt is compatible with this grommet?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This grommet features a 3\/8-inch inner hole, which is designed to provide a snug, secure fit for standard 3\/8-inch mounting bolts used in most karting applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use these for applications other than seat mounting?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, these grommets are versatile and are commonly used for bumper mounting or any application where you need to isolate components from vibration and debris.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many grommets are included in this purchase?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This item is sold individually (each). We recommend ordering a full set to ensure all mounting points on your kart have consistent cushioning.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/azusa-grommet-kit-ae1883\"\u003eAzusa Complete Grommet Kit for Kart Seat and Fender Mounting\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/steering-shaft-pitman-arm-azusa-ae8129\"\u003eAzusa Steering Shaft Pitman Arm for Precise Kart Linkage\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/taper-lock-cable-anchor-ae2367\"\u003eAzusa Taper Lock Cable Anchor for Minimal Distortion in Kart Cables\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-3-8-axle-lock-collar-lc138\"\u003eAzusa LC138 Aluminum Axle Lock Collar - 1 3\/8 Inch - All Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Azusa","offers":[{"title":"Default Title","offer_id":52562568249662,"sku":"AE8316","price":2.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-azusa-seat-grommet-only-sold-each-ae8316.jpg?v=1763112030"},{"product_id":"plastic-conical-washer-kit-for-seat-mounting-plastic-10pack-stz0110","title":"10-Pack Plastic Conical Washers for Secure Kart Seat Mounting","description":"\u003cp\u003eAddress common mounting angles with this 10-pack of plastic conical washers, designed specifically for kart seat installations. Compatible with 8mm or 5\/16-inch flat head cap screws, they cone-shape allows natural settling, eliminating the guesswork in uneven chassis setups.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePlastic construction avoids corrosion and weight penalties.\u003c\/li\u003e\n\u003cli\u003eDistributes pressure to safeguard fiberglass seats from fractures.\u003c\/li\u003e\n\u003cli\u003eBulk pack supports multiple karts or spares for the season.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIn practice, these washers promote even torque, keeping seats firm without over-tightening risks. This stability translates to better feedback through the seat, helping drivers anticipate track changes for faster lines. Ideal for sprint or oval rigs, they simplify maintenance and boost reliability.\u003c\/p\u003e\u003cp\u003eStock your toolbox with these essentials to avoid mid-season hassles, maintaining that organized edge at every event.\u003c\/p\u003e\u003cp\u003eSKU: STZ0110 for reference.\u003c\/p\u003e","brand":"Swift Karting","offers":[{"title":"Default Title","offer_id":52562569625918,"sku":"STZ0110","price":14.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-plastic-conical-washer-kit-for-seat-mounting-plastic-10pack-stz0110.jpg?v=1763112054"},{"product_id":"seat-spacer-washer-20mm-ppsw20","title":"20mm Hard Anodized Seat Spacer Washer in Black Aluminum - Sold Each","description":"\u003cstrong\u003eDurable and precise\u003c\/strong\u003e, the 20mm seat spacer washer fills substantial gaps in lower mounts, forged from hard anodized black aluminum that laughs off track abuse. It elevates your seat to the ideal height, fostering a commanding driving posture.\u003cp\u003eWith superior resistance to oxidation, it stays reliable in all weather, preventing loose fits that disrupt rhythm. Racers use it to customize for taller frames, unlocking better weight distribution for agile maneuvers.\u003c\/p\u003e\u003cp\u003eA single piece can refine your entire setup, aiding organization by minimizing clutter from mismatched parts. Feel the difference in track confidence.\u003c\/p\u003e\u003cp\u003eSKU: PPSW20 – built for the long haul.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why do I need a 20mm seat spacer washer?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e A 20mm spacer is essential for filling large gaps between the seat and the chassis mounting points. Proper spacing prevents the seat from flexing or cracking when you tighten the mounting bolts, ensuring a secure and stable driving position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I stack these spacers with other sizes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, these spacers are designed to be modular. You can combine them with our 5mm or 10mm spacers to achieve the exact offset required for your specific seat geometry and driver height.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does this spacer affect my kart's handling?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e By using the correct spacer, you can fine-tune your seat position to optimize weight distribution. A properly positioned seat improves your center of gravity, leading to better balance and more agile handling through corners.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this washer compatible with standard kart seat hardware?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this spacer is designed to work with standard racing kart seat mounting hardware. Its hard-anodized aluminum construction ensures it remains durable and resistant to oxidation even in harsh track conditions.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-5mm-ppsw5\"\u003e5mm Hard Anodized Aluminum Seat Spacer Washer - Sold Each\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-10mm-ppsw10\"\u003e10mm Black Anodized Aluminum Seat Spacer Washer - Individual Sale\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-mounting-kit-msmk\"\u003eComplete Kart Seat Mounting Kit with Hardware Essentials\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-reinforcement-kit-sold-each-esrk\"\u003eIndividual Seat Reinforcement Kit with Metric Hardware for Karts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/self-aligning-seat-washer-assembly-sasmwk\"\u003eBlack Anodized Self-Aligning Seat Washer Assembly for 5\/16\" or 8mm Hardware\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swift Karting","offers":[{"title":"Default Title","offer_id":52562581651774,"sku":"PPSW20","price":3.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-seat-spacer-washer-20mm-ppsw20.jpg?v=1763112244"},{"product_id":"azusa-grommet-kit-ae1883","title":"Azusa Complete Grommet Kit for Kart Seat and Fender Mounting","description":"\u003cp\u003eStreamline your kart assembly with the Azusa Grommet Kit, a reliable bundle that tackles mounting challenges head-on. Featuring eight durable grommets paired with matching fender washers, it's crafted to create bulletproof connections that withstand the track's abuse.\u003c\/p\u003e\u003cp\u003eThese 1.25-inch outer diameter washers with 5\/16-inch holes distribute force broadly, reducing localized stress on fiberglass or metal surfaces. The grommets' thickness provides superior cushioning, isolating vibrations that could otherwise loosen fittings mid-race.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePerfect for seats, bumpers, or fenders in oval and sprint applications.\u003c\/li\u003e\n\u003cli\u003eEnhances safety by preventing hardware from digging into materials.\u003c\/li\u003e\n\u003cli\u003eEasy to install, saving time during frantic prep sessions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor organization at the track, this kit keeps spares handy, avoiding downtime from failed mounts. It indirectly aids speed by ensuring a taut setup that responds instantly to inputs, letting you exploit every straightaway.\u003c\/p\u003e\u003cp\u003eSKU: AE1883 – a must-have for any pit toolkit.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is included in the Azusa Complete Grommet Kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This kit includes eight durable rubber grommets and eight matching fender washers, providing everything you need to secure your kart's seat, fenders, or bumpers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What are the dimensions of the washers in this kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The washers feature a 1.25-inch outer diameter with a 5\/16-inch center hole, designed to distribute mounting pressure evenly and prevent hardware from cracking fiberglass or metal surfaces.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I use grommets instead of just bolts and washers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Grommets provide essential vibration isolation. By cushioning the connection, they prevent hardware from loosening due to track vibrations and protect your bodywork from stress fractures caused by direct metal-on-fiberglass contact.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I buy these grommets individually if I only need one?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, if you do not need the full kit, we offer the individual grommets separately to help you complete your specific repair.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/azusa-seat-grommet-only-sold-each-ae8316\"\u003eAzusa Thick Seat Grommet for Kart and Bumper Applications - Sold Each\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/taper-lock-cable-anchor-ae2367\"\u003eAzusa Taper Lock Cable Anchor for Minimal Distortion in Kart Cables\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/steering-shaft-pitman-arm-azusa-ae8129\"\u003eAzusa Steering Shaft Pitman Arm for Precise Kart Linkage\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-3-8-axle-lock-collar-lc138\"\u003eAzusa LC138 Aluminum Axle Lock Collar - 1 3\/8 Inch - All Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Azusa","offers":[{"title":"Default Title","offer_id":52562581946686,"sku":"AE1883","price":7.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-azusa-grommet-kit-ae1883.jpg?v=1763112251"},{"product_id":"8mm-fhcs-60mm-length-8mmx60mmfhcs","title":"Stainless Steel 8mm Flat Head Cap Screw - 60mm Length for Kart Seats","description":"\u003cp\u003eSecure demanding lower seat positions using this 60mm long 8mm FHCS, a stainless steel staple for kart builders. Its 1.25 pitch threads bite deeply for reliable hold, ideal when spacers create gaps or trimming is needed for exact fits.\u003c\/p\u003e\u003cp\u003eFlush head design sits smooth against surfaces, minimizing drag and snag risks. The corrosion resistance shines in wet or muddy tracks, ensuring longevity without rust-induced failures that could sideline you.\u003c\/p\u003e\u003cp\u003eBy locking in your seat precisely, it enhances chassis rigidity, allowing sharper responses and consistent speeds. A small part with big impact on race outcomes.\u003c\/p\u003e\u003cp\u003eSKU: 8MMX60MMFHCS – grab extras for versatility.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why choose a flat head cap screw (FHCS) for kart seats?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The flat head design allows the screw to sit flush against the seat surface. This is critical in karting to prevent snagging on your racing suit and to minimize aerodynamic drag, ensuring a clean, professional finish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this 8mm screw compatible with all kart seats?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This screw is designed for standard 8mm mounting holes found on most racing kart seats. Always verify your seat's mounting hole diameter before purchase to ensure a proper fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: When should I use a 60mm length screw?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The 60mm length is ideal for setups where you are using seat spacers to adjust the seat position or when you need extra thread length to accommodate thicker seat mounting brackets or washers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the stainless steel construction require special maintenance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Stainless steel is highly resistant to corrosion, making it perfect for wet or muddy track conditions. While it resists rust better than standard steel, it is good practice to check the tightness of your seat hardware before every race session as part of your standard safety inspection.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/dzus-fastener-kit-dp-466\"\u003eComplete Dzus Fastener Kit with 8 Each of Buttons, Springs, and Rivets\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/40mm-axle-lock-collar-wide-black-lc40b-wide\"\u003eWide Black 40mm Axle Lock Collar with Shoulder and 8mm Keyslot\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/30mm-axle-lock-collar-with-shoulder-lc30-ws\"\u003e30mm Axle Lock Collar with 7mm Shoulder for Narrow Bearing Clearance\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/30mm-axle-lock-collar-lc30mm\"\u003ePrecision 30mm Axle Lock Collar for European-Style Kart Chassis\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-axle-lock-collar-lc1\"\u003e1 Inch Two-Piece Axle Lock Collar with Keyway for Kart Precision\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swift Karting","offers":[{"title":"Default Title","offer_id":52562583748926,"sku":"8MMX60MMFHCS","price":1.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-8mm-fhcs-60mm-length-8mmx60mmfhcs.jpg?v=1763112291"},{"product_id":"seat-mounting-kit-msmk","title":"Complete Kart Seat Mounting Kit with Hardware Essentials","description":"\u003cp\u003eAssemble your kart's seating system effortlessly with this comprehensive mounting kit, packed with everything required for a rock-solid hold. The included components work together to eliminate play, allowing precise adjustments that optimize your driving position for peak performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFour nylon lock nuts resist loosening from engine vibes.\u003c\/li\u003e\n\u003cli\u003eMatching bolts and washers distribute load evenly.\u003c\/li\u003e\n\u003cli\u003eRubber grommets add flex to absorb bumps, protecting both seat and frame.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIn the heat of a race, a wobbly seat can cost valuable seconds; this kit prevents that by promoting stability that enhances control. It's ideal for DIY enthusiasts or pro mechanics aiming for quick pit swaps, ensuring your rig is track-ready without fuss.\u003c\/p\u003e\u003cp\u003eVersatile across chassis types, it supports custom fits that align with your racing style, indirectly boosting lap times through better ergonomics. Don't overlook these small parts – they form the foundation of a winning setup.\u003c\/p\u003e\u003cp\u003eSKU: MSMK for easy sourcing.\u003c\/p\u003e\n\n\u003cdiv\u003e\n\u003ch2\u003eComplete Kart Seat Mounting Kit with Hardware Essentials\u003c\/h2\u003e\n\u003cp\u003eAssemble your kart's seating system effortlessly with this comprehensive mounting kit, packed with everything required for a rock-solid hold. The included components work together to eliminate play, allowing precise adjustments that optimize your driving position for peak performance.\u003c\/p\u003e\n\u003cp\u003eFour nylon lock nuts resist loosening from engine vibes. Matching bolts and washers distribute load evenly. Rubber grommets add flex to absorb bumps, protecting both seat and frame.\u003c\/p\u003e\n\u003cp\u003eIn the heat of a race, a wobbly seat can cost valuable seconds; this kit prevents that by promoting stability that enhances control. It's ideal for DIY enthusiasts or pro mechanics aiming for quick pit swaps, ensuring your rig is track-ready without fuss. Versatile across chassis types, it supports custom fits that align with your racing style, indirectly boosting lap times through better ergonomics. Don't overlook these small parts – they form the foundation of a winning setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e MSMK\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why are rubber grommets included in this kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Rubber grommets are essential for kart seats because they provide necessary vibration dampening. They absorb track bumps and engine vibrations, which helps prevent stress cracks in your seat and protects the mounting points on your chassis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How often should I check my seat mounting hardware?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e You should inspect your seat hardware before every race day. Because karts experience high-frequency vibrations, it is important to ensure the nylon lock nuts remain tight and that there is no excessive play in the seat-to-chassis connection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this kit on any kart chassis?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this kit is designed to be versatile across most standard racing kart chassis types. It provides the universal hardware essentials needed to secure your seat firmly, regardless of your specific frame geometry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of using nylon lock nuts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Nylon lock nuts (nyloc nuts) are preferred in motorsports because the nylon insert creates friction against the bolt threads. This prevents the nut from backing off due to the constant, intense vibrations generated by the kart engine.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-reinforcement-kit-sold-each-esrk\"\u003eIndividual Seat Reinforcement Kit with Metric Hardware for Karts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/self-aligning-seat-washer-assembly-sasmwk\"\u003eBlack Anodized Self-Aligning Seat Washer Assembly for 5\/16\" or 8mm Hardware\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-5mm-ppsw5\"\u003e5mm Hard Anodized Aluminum Seat Spacer Washer - Sold Each\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-10mm-ppsw10\"\u003e10mm Black Anodized Aluminum Seat Spacer Washer - Individual Sale\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/rubber-seat-grommet-pack-of-four-4-rsgk\"\u003eRubber Seat Grommet Pack of Four for Secure Kart Mounting\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Generic Kart Parts","offers":[{"title":"Default Title","offer_id":52562611142974,"sku":"MSMK","price":10.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-seat-mounting-kit-msmk.jpg?v=1763112785"},{"product_id":"seat-spacer-washer-10mm-ppsw10","title":"10mm Black Anodized Aluminum Seat Spacer Washer - Individual Sale","description":"Ever notice how a tiny adjustment revolutionizes your drive? This 10mm seat spacer washer does just that, made from tough anodized aluminum to handle the twists of racing. Positioned at lower mounts, it evens out discrepancies for a flush, secure fit.\u003cp\u003eBlack finish not only looks sharp but protects against environmental wear, ensuring it performs season after season. It allows for personalized ergonomics, reducing strain and sharpening focus on the race line.\u003c\/p\u003e\u003cp\u003eIdeal for tweaks that matter, keeping your pit area efficient with targeted parts. Boost that subtle edge in handling.\u003c\/p\u003e\u003cp\u003eReference SKU: PPSW10.\u003c\/p\u003e\n\n\u003cdiv\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eQ: Why do I need a 10mm seat spacer washer?\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Seat spacers are essential for correcting gaps between the seat and the chassis mounting points. Using a 10mm spacer ensures your seat is mounted flush, which prevents stress cracks in the fiberglass and ensures a secure, stable fit for better driver ergonomics.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eQ: Where should I install these spacers?\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e These are typically used at the lower seat mounting points. They are designed to bridge the distance between the seat bracket and the chassis, allowing you to fine-tune your seating position without bending or forcing the seat material.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eQ: Can I stack these spacers?\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e While you can stack them to achieve a specific offset, it is generally recommended to use the correct size for your gap to maintain structural integrity. If you need different heights, we also offer 5mm and 20mm options to help you achieve the perfect fit.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eQ: Is this washer compatible with all kart seats?\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This spacer is designed for standard kart seat mounting hardware. It is a universal fit for most racing karts, but we recommend checking your bolt diameter to ensure it slides over your existing mounting hardware correctly.\u003c\/p\u003e\n\n    \u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-5mm-ppsw5\"\u003e5mm Hard Anodized Aluminum Seat Spacer Washer - Sold Each\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-20mm-ppsw20\"\u003e20mm Hard Anodized Seat Spacer Washer in Black Aluminum - Sold Each\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"\/products\/seat-mounting-kit-msmk\"\u003eComplete Kart Seat Mounting Kit with Hardware Essentials\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"\/products\/seat-reinforcement-kit-sold-each-esrk\"\u003eIndividual Seat Reinforcement Kit with Metric Hardware for Karts\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"\/products\/rubber-seat-grommet-pack-of-four-4-rsgk\"\u003eRubber Seat Grommet Pack of Four for Secure Kart Mounting\u003c\/a\u003e\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Swift Karting","offers":[{"title":"Default Title","offer_id":52562611405118,"sku":"PPSW10","price":3.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-seat-spacer-washer-10mm-ppsw10.jpg?v=1763112790"},{"product_id":"seat-spacer-washer-5mm-ppsw5","title":"5mm Hard Anodized Aluminum Seat Spacer Washer - Sold Each","description":"\u003cp\u003eBridge small voids in your seat mount with this 5mm spacer washer, crafted from hard anodized black aluminum for enduring strength. It slots perfectly into lower positions, adjusting height without compromising integrity.\u003c\/p\u003e\u003cp\u003eThe anodized layer wards off corrosion and scratches, maintaining a clean look while handling track grit. Use it to fine-tune your setup, promoting optimal legroom that aids aggressive driving styles.\u003c\/p\u003e\u003cp\u003eSold each, it's flexible for custom builds, indirectly speeding up your kart by stabilizing the driver's base. Essential for organized, professional-grade assemblies.\u003c\/p\u003e\u003cp\u003eSKU: PPSW5 – precision at your fingertips.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I use a 5mm spacer washer for my kart seat?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e A 5mm spacer is essential for bridging small gaps between the seat and the chassis mounting points. Using the correct spacer prevents the seat from flexing or cracking when you tighten the mounting bolts, ensuring a secure and stable fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I stack these 5mm washers to create a larger gap?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e While you can stack them, it is generally recommended to use a single spacer of the correct size for maximum structural integrity. If you find you need more than 10mm of spacing, consider using a dedicated 10mm or 20mm spacer to maintain a cleaner, more stable assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the hard anodized finish provide any performance benefits?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. The hard anodized coating significantly increases the surface hardness and corrosion resistance of the aluminum. This prevents the washer from deforming under the high vibration loads of racing and protects it from track grit and moisture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I know if I need a spacer for my seat installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e If you notice that your seat mounting holes do not sit flush against the chassis brackets when the seat is in your desired position, you need a spacer. Forcing the seat to bend to meet the bracket can cause stress fractures in the fiberglass or plastic seat over time.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-10mm-ppsw10\"\u003e10mm Black Anodized Aluminum Seat Spacer Washer - Individual Sale\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-20mm-ppsw20\"\u003e20mm Hard Anodized Seat Spacer Washer in Black Aluminum - Sold Each\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-mounting-kit-msmk\"\u003eComplete Kart Seat Mounting Kit with Hardware Essentials\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/self-aligning-seat-washer-assembly-sasmwk\"\u003eBlack Anodized Self-Aligning Seat Washer Assembly for 5\/16\" or 8mm Hardware\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-reinforcement-kit-sold-each-esrk\"\u003eIndividual Seat Reinforcement Kit with Metric Hardware for Karts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swift Karting","offers":[{"title":"Default Title","offer_id":52562622939454,"sku":"PPSW5","price":3.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-seat-spacer-washer-5mm-ppsw5.jpg?v=1763113049"},{"product_id":"rubber-seat-grommet-pack-of-four-4-rsgk","title":"Rubber Seat Grommet Pack of Four for Secure Kart Mounting","description":"\u003cp\u003eEssential for any kart builder, this pack of four rubber seat grommets provides the cushioning needed to dampen road shocks effectively. By isolating the seat from the frame, they reduce noise and wear, keeping your setup tight and reliable through intense sessions.\u003c\/p\u003e\u003cp\u003ePerfect for quick repairs or full assemblies, these grommets fit standard hardware, making them a go-to for trackside tweaks. Their flexible material maintains integrity under heat and pressure, directly contributing to a smoother, faster drive by minimizing distractions.\u003c\/p\u003e\u003cp\u003eSKU: RSGK – stock up to stay prepared for race day demands.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why are rubber seat grommets necessary for my kart?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Rubber grommets act as a vibration dampener between your seat and the chassis. They prevent the seat from cracking due to high-frequency engine and track vibrations, while also protecting the fiberglass or plastic seat material from being damaged by the metal mounting hardware.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many grommets do I need for a standard seat installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Most standard kart seats require four mounting points. This pack of four is designed to provide a complete set for a single seat installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can these grommets be used with different sizes of seat bolts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e These grommets are designed to fit standard kart seat hardware. If you are using oversized bolts or specialized mounting kits, ensure the grommet hole diameter allows for a snug fit to maintain the vibration-dampening effect.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I replace my seat grommets regularly?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. Over time, the rubber can harden, crack, or compress due to heat and constant pressure. Inspecting them before race day and replacing them if they show signs of wear ensures your seat remains securely mounted and your chassis flex is not compromised.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-mounting-kit-msmk\"\u003eComplete Kart Seat Mounting Kit with Hardware Essentials\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-reinforcement-kit-sold-each-esrk\"\u003eIndividual Seat Reinforcement Kit with Metric Hardware for Karts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/self-aligning-seat-washer-assembly-sasmwk\"\u003eBlack Anodized Self-Aligning Seat Washer Assembly for 5\/16\" or 8mm Hardware\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-5mm-ppsw5\"\u003e5mm Hard Anodized Aluminum Seat Spacer Washer - Sold Each\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-10mm-ppsw10\"\u003e10mm Black Anodized Aluminum Seat Spacer Washer - Individual Sale\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Generic Kart Parts","offers":[{"title":"Default Title","offer_id":52562636046654,"sku":"RSGK","price":2.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-rubber-seat-grommet-pack-of-four-4-rsgk.jpg?v=1763113351"},{"product_id":"seat-saver-kit-by-pmi-pm-116103","title":"PMI Universal Seat Saver Kit - 4 Steel Plates \u0026 12 Rivets - All Kart Classes","description":"\u003cp\u003eWhen you're pushing a racing go kart to the absolute limit, chassis flex and vibration take a massive toll on your mounting points. The PMI Seat Saver Kit (PM-116103) is engineered to bulletproof your fiberglass or carbon fiber seat, preventing catastrophic cracking where it mounts to the frame. By distributing the load across four precision laser-cut stainless steel backing plates, this kit ensures your seat remains rigid, transferring your weight perfectly through the apex.\u003c\/p\u003e\u003ch2\u003eEssential Hardware for Go Karts and Parts\u003c\/h2\u003e\u003cp\u003eA cracked seat doesn't just cost you money; it robs you of chassis feedback and lap time. Whether you are upgrading your steering components or dialing in your setup, securing your seat is a critical step in your maintenance routine. This kit includes 12 heavy-duty rivets to create a permanent, ironclad bond that outlasts plastic washers and standard bolts. It's the ultimate reinforcement for high-load areas, keeping your driving position rock-steady during aggressive sprint races or high-speed oval battles.\u003c\/p\u003e\u003ch2\u003eFind the Best Parts for Go Karts Near Me\u003c\/h2\u003e\u003cp\u003eStop wasting time replacing damaged seats mid-season. When you're looking for go karts for sale near me or upgrading your current rig, professional-grade hardware is what separates the podium from the paddock. The PMI Seat Saver Kit streamlines your build, preserving the value of your chassis and seat.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser-Cut Stainless Steel:\u003c\/strong\u003e Four precision-machined backing plates distribute mounting stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermanent Rivet Bond:\u003c\/strong\u003e Includes 12 high-strength rivets to eliminate loosening under heavy vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Seat Cracking:\u003c\/strong\u003e Shields vulnerable bolt holes from the repetitive pounding of track life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreserves Chassis Feedback:\u003c\/strong\u003e Keeps the seat rigid for optimal weight transfer and cornering speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Fitment:\u003c\/strong\u003e Compatible with all major seat brands and kart chassis types.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Installation:\u003c\/strong\u003e Minimizes prep time so you can get back to the track faster.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Level Durability:\u003c\/strong\u003e Far surpasses standard plastic washers in heat and impact resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShop Tires, Mounts, and Performance Upgrades\u003c\/h2\u003e\u003cp\u003eYour seat is your primary connection to the kart. Secure it with the same precision you use when you shop tires or tune your engine. The PMI Seat Saver Kit delivers the reliability professional teams demand, ensuring your focus stays on hitting your marks, not your hardware.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I use steel plates instead of standard plastic washers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Plastic washers often crack or compress under the intense vibration and chassis flex of a racing kart. The PMI steel plates distribute the load across a larger surface area, preventing the bolt heads from pulling through your fiberglass or carbon fiber seat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this kit compatible with my specific kart chassis?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the PMI Seat Saver Kit is designed with universal fitment in mind. It is compatible with all major seat brands and standard kart chassis types, making it a versatile upgrade for any class.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need special tools to install these rivets?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, you will need a standard heavy-duty rivet gun to install the included rivets. This creates a permanent, ironclad bond that is much more secure than traditional nut-and-bolt hardware, which can vibrate loose during a race.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many mounting points does this kit cover?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This kit includes 4 laser-cut stainless steel backing plates and 12 rivets, which is sufficient to reinforce the most critical high-load mounting points on your seat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this kit affect my seat's rigidity?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Absolutely. By reinforcing the mounting points, the kit ensures your seat remains rock-steady. This improves chassis feedback and ensures your weight is transferred efficiently through the apex, which is vital for consistent lap times.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/p-m-i-tach-nut-black-anodized-aluminum-pm-113000\"\u003ePerformance Manufacturing Corp. Mychron Tach Mounting Hand Nut - Black Anodized M8x1.25 - All Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pmi-black-pedal-grips-for-1-2-pedals-pm-85-1-2\"\u003ePerformance Manufacturing PM-85-1\/2 Aluminum Pedal Grips - 1\/2\" ID Black Anodized - All Racing Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Performance Manufacturing Corp.","offers":[{"title":"Default Title","offer_id":52562674745662,"sku":"PM-116103","price":23.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-seat-saver-kit-by-pmi-pm-116103.jpg?v=1763114173"},{"product_id":"self-aligning-seat-washer-assembly-sasmwk","title":"Black Anodized Self-Aligning Seat Washer Assembly for 5\/16\" or 8mm Hardware","description":"\u003cp\u003eFrustrated by off-kilter seat mounts? This self-aligning washer assembly solves it with a clever two-piece setup: one concave and one convex washer that nest to auto-correct angles. Black anodized for durability, it fits 5\/16-inch or 8mm hardware seamlessly.\u003c\/p\u003e\u003cp\u003eThe design promotes uniform load sharing, preventing uneven wear that leads to premature failures. In action, it keeps seats level, fostering precise body positioning that sharpens turn-in and stability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEliminates manual shimming hassles.\u003c\/li\u003e\n\u003cli\u003eResists corrosion for all-weather reliability.\u003c\/li\u003e\n\u003cli\u003eCompact kit for easy storage in your race bag.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor better organization, it simplifies installs across chassis variations, saving time and boosting confidence. Experience how aligned mounts translate to intuitive handling and quicker laps.\u003c\/p\u003e\u003cp\u003eSKU: SASMWK – alignment innovation at work.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I use a self-aligning washer instead of a standard flat washer for my seat?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Standard flat washers often create stress points when the bolt angle isn't perfectly perpendicular to the seat surface. This self-aligning assembly uses a concave and convex design to pivot and seat flush, ensuring uniform load distribution and preventing the seat material from cracking or wearing prematurely.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this assembly fit my specific kart chassis?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This assembly is designed to be universal for any kart seat mounting application that utilizes 5\/16-inch or 8mm hardware. It is an excellent solution for chassis where seat stays or mounting points are at slight angles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need any special tools to install these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No special tools are required. Simply replace your existing flat washers with the two-piece self-aligning set during your standard seat installation. Ensure the convex side nests properly into the concave washer for a smooth, pivoting fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can these be used with seat spacers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, these washers work perfectly in conjunction with seat spacers. They help ensure that even if the spacer is at a slight angle, the bolt head or nut remains flush against the mounting surface.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-reinforcement-kit-sold-each-esrk\"\u003eIndividual Seat Reinforcement Kit with Metric Hardware for Karts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-mounting-kit-msmk\"\u003eComplete Kart Seat Mounting Kit with Hardware Essentials\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-5mm-ppsw5\"\u003e5mm Hard Anodized Aluminum Seat Spacer Washer - Sold Each\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-10mm-ppsw10\"\u003e10mm Black Anodized Aluminum Seat Spacer Washer - Individual Sale\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/rubber-seat-grommet-pack-of-four-4-rsgk\"\u003eRubber Seat Grommet Pack of Four for Secure Kart Mounting\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Generic Kart Parts","offers":[{"title":"Default Title","offer_id":52562675892542,"sku":"SASMWK","price":4.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-self-aligning-seat-washer-assembly-sasmwk.jpg?v=1763114181"},{"product_id":"sprint-seat-mounting-kit-metric-hardware-rlvsmk","title":"RLV Sprint Metric Seat Mounting Hardware Kit - Conical \u0026 Nylon Washers - All Sprint Classes","description":"\u003cp\u003eWhen sourcing premium racing parts to eliminate chassis bind and secure your driving position, the RLV Sprint Metric Seat Mounting Kit delivers the exact clamping force required for high-G cornering. A properly mounted seat acts as a structural cross-member in your sprint kart chassis. If your seat shifts or flexes under load, you lose vital feedback and scrub speed through the apex. This metric hardware set utilizes specialized conical and nylon washers to distribute stress evenly across the fiberglass or carbon shell, preventing stress fractures while maintaining the frame's engineered flex characteristics.\u003c\/p\u003e\u003ch2\u003ePrecision Hardware for Two Cycle Engine \u0026amp; Four Cycle Engine Karts\u003c\/h2\u003e\u003cp\u003eWhether you are tuning a high-revving two cycle engine or dialing in the momentum-focused line of a four cycle engine class, chassis harmony is critical. The RLV metric kit ensures your seat is locked into the exact millimeter, allowing the chassis to twist and grip exactly as the manufacturer intended. The included flat head cap screws (FHCS) sit flush against the seat interior, ensuring your rib protector doesn't catch on exposed bolt heads during aggressive weight transfers.\u003c\/p\u003e\u003ch2\u003eComplement Your Go Kart Brake Kit \u0026amp; Chassis Setup\u003c\/h2\u003e\u003cp\u003eUpgrading your seat hardware is just as crucial as installing a new go kart brake kit or executing a go kart steering wheel upgrade. Every point of contact between the driver and the kart must be rigid and responsive. This kit provides the exact metric dimensions required by modern European and domestic sprint frames, speeding up your pit-side adjustments and ensuring your setup remains consistent from practice to the final lap.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetric Flat Head Cap Screws:\u003c\/strong\u003e Includes two long and two short FHCS bolts for versatile, flush-fit positioning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlastic Conical Washers:\u003c\/strong\u003e Four angled washers designed to adapt to the seat's natural curve, ensuring stress-free mounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNylon Seat Washers:\u003c\/strong\u003e Eight high-density nylon washers that prevent fiberglass scratching and eliminate slippage under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration Damping:\u003c\/strong\u003e Engineered to absorb track harmonics, keeping the driver focused and reducing fatigue.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Integrity:\u003c\/strong\u003e Acts as a structural reinforcement, optimizing the torsional stiffness of your sprint frame.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Metric Fit:\u003c\/strong\u003e Perfectly aligns with standard international frame tabs and mounting points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNylon Lock Nuts:\u003c\/strong\u003e Prevents hardware from backing out during intense racing conditions and heavy vibrations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why is it important to use conical and nylon washers for my seat?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The conical washers allow the hardware to sit flush against the curved surface of the seat, while the nylon washers prevent the bolt heads from cracking the fiberglass or carbon fiber shell. This combination ensures a secure fit without creating stress points that lead to fractures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this kit fit my specific sprint kart chassis?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this is a universal metric hardware kit designed to fit standard international frame tabs and mounting points found on almost all modern European and domestic sprint kart chassis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does seat mounting affect my kart's handling?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Your seat acts as a structural cross-member. If the seat is loose or flexes incorrectly, you lose chassis feedback and speed through corners. This kit ensures the seat is locked rigidly, allowing the chassis to flex and grip exactly as the manufacturer intended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I use thread locker on these bolts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e While the included nylon lock nuts are designed to prevent backing out under vibration, many racers choose to use a small amount of medium-strength thread locker on the flat head cap screws for extra peace of mind during high-G cornering.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/bwk5905-rear-bumper-mount-kit-bwk5905\"\u003eRLV Rear Bumper Mount Kit - CIK-Style for Secure Kart Installation\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/bwk5928-rear-bumper-hardware-kit-28mm-bwk5928\"\u003eRLV BWK5928 Rear Bumper Hardware Kit - 28mm Frame Inserts - CIK Sprint\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/rlv-manual-tire-breaker-mtb\"\u003eRLV Reliable Manual Tire Bead Breaker for Karts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RLV","offers":[{"title":"Default Title","offer_id":52562699190590,"sku":"RLVSMK","price":19.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-sprint-seat-mounting-kit-metric-hardware-rlvsmk.jpg?v=1763114460"},{"product_id":"seat-reinforcement-kit-sold-each-esrk","title":"Individual Seat Reinforcement Kit with Metric Hardware for Karts","description":"\u003cp\u003eTackle seat vulnerabilities with this reinforcement kit, sold individually to target weak spots in your kart's setup. Metric hardware included pairs with a main countersunk washer that accommodates SAE flat head cap screws, creating fortified anchors.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLight silicone coat on washers prevents slippage and wear.\u003c\/li\u003e\n\u003cli\u003eStrengthens fiberglass against flex and impacts.\u003c\/li\u003e\n\u003cli\u003eNote: Minor cosmetic blemishes on main washer from storage; small washers optional.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBy reinforcing mount points, it distributes loads evenly, slashing the risk of failures that halt races. This leads to a taut feel, where every throttle blip translates directly to speed. Perfect for high-mileage karts needing that extra toughness.\u003c\/p\u003e\u003cp\u003eInstallation is simple, enhancing your trackside efficiency and keeping tools organized. Invest in prevention to avoid costly downtime.\u003c\/p\u003e\u003cp\u003eSKU: ESRK – reliability redefined.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I use a seat reinforcement kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Fiberglass kart seats are prone to cracking around mounting holes due to constant vibration and chassis flex. This kit distributes the load across a larger surface area, preventing the bolt head from pulling through the seat and extending the life of your equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I install this reinforcement kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Simply place the main countersunk washer on the exterior of the seat at your mounting point. The kit is designed to work with your existing seat bolts, providing a fortified anchor that reduces stress on the fiberglass.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this kit with any seat bolt size?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This kit includes metric hardware and is specifically designed to accommodate SAE flat head cap screws. It is ideal for standard kart seat mounting configurations where you need to prevent seat flex.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the purpose of the silicone coating on the washers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The light silicone coat provides a high-friction interface that prevents the washer from slipping against the seat surface, reducing wear and ensuring the mounting point remains tight during intense racing conditions.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-mounting-kit-msmk\"\u003eComplete Kart Seat Mounting Kit with Hardware Essentials\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/self-aligning-seat-washer-assembly-sasmwk\"\u003eBlack Anodized Self-Aligning Seat Washer Assembly for 5\/16\" or 8mm Hardware\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-5mm-ppsw5\"\u003e5mm Hard Anodized Aluminum Seat Spacer Washer - Sold Each\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/seat-spacer-washer-10mm-ppsw10\"\u003e10mm Black Anodized Aluminum Seat Spacer Washer - Individual Sale\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/rubber-seat-grommet-pack-of-four-4-rsgk\"\u003eRubber Seat Grommet Pack of Four for Secure Kart Mounting\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Generic Kart Parts","offers":[{"title":"Default Title","offer_id":52562728583486,"sku":"ESRK","price":14.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/seatmountinghardware-seat-reinforcement-kit-sold-each-esrk.jpg?v=1763114800"},{"product_id":"8mm-flat-head-cap-screw-fhcs-70mm-length-stainless-steel","title":"8mm Flat Head Cap Screw (FHCS) - 70mm Length, Stainless Steel","description":"\u003cp\u003eUpgrade your kart's seat mounting with this reliable 8mm Flat Head Cap Screw (FHCS) measuring 70mm in length. Crafted from durable stainless steel, this fastener offers excellent corrosion resistance, making it ideal for the demanding conditions of kart racing and track environments.\u003c\/p\u003e\u003cp\u003eThe 70mm length is the perfect fit for securely mounting LN5#W components directly to seats, ensuring a stable and vibration-resistant connection. For added versatility, it works well on lower seat mounting applications when paired with spacers. If a shorter length is required, simply cut it to your exact specifications without compromising strength or integrity.\u003c\/p\u003e\u003cp\u003eFeaturing an 8mm diameter with a precise 1.25mm pitch threading, this FHCS provides a strong, reliable hold that meets the needs of competitive karting setups. The flat head design allows for a flush, low-profile installation, reducing drag and maintaining a clean aesthetic on your kart's chassis or seat assembly.\u003c\/p\u003e\u003cp\u003eStainless steel construction ensures longevity, even with repeated installations and removals during maintenance or adjustments. This screw is a must-have in any kart builder's toolkit, supporting safe and precise assembly for optimal driver performance and comfort.\u003c\/p\u003e\u003cp\u003eWhether you're preparing for club races, practice sessions, or national events, this fastener delivers the quality and fit you can trust. Keep your seat secure and your kart performing at its best.\u003c\/p\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e8mm diameter x 70mm length\u003c\/li\u003e\n\u003cli\u003e1.25mm pitch threading\u003c\/li\u003e\n\u003cli\u003eStainless steel for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eFlat head for flush mounting\u003c\/li\u003e\n\u003cli\u003eVersatile for LN5#W seat mounting or custom cuts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the exact size and material?\u003c\/strong\u003e 8mm diameter, 70mm length, stainless steel with 1.25 pitch threading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is it used for?\u003c\/strong\u003e Perfect for mounting LN5#W to seats; also lower seat mounting with spacers or cut to length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan it be modified?\u003c\/strong\u003e Yes, cut to custom length as needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs it corrosion-resistant?\u003c\/strong\u003e Yes, made from stainless steel for durability in racing conditions.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Swift Karting","offers":[{"title":"Default Title","offer_id":53243916124478,"sku":"8MMX70MMFHCS","price":1.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/8MM_FHCS_70mm_Length.webp?v=1774893126"},{"product_id":"ppsmw-seat-mounting-washer","title":"PPSMW Seat Mounting Washer for Go-Kart Seats - Sold Each","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003ePPSMW Seat Mounting Washer: Reliable Go-Kart Seat Hardware\u003c\/h2\u003e\n\u003cp\u003eThe PPSMW Seat Mounting Washer is a key component for any kart builder or racer focused on solid seat attachment. This washer provides the necessary support and stability during seat installation, ensuring your seating position remains firm through every turn and straightaway. Sold individually, it's an economical choice for targeted repairs or complete rebuilds.\u003c\/p\u003e\n\u003cp\u003eSimilar to the ESRK Repair Kit we offer, the PPSMW focuses specifically on the washer element. It excludes the spacer and strut mount bolt found in the full kit, making it ideal when you already have those parts or need just the washer. Crafted for precision fit, this hardware helps distribute load evenly, reducing wear on surrounding components and promoting longer-lasting assemblies.\u003c\/p\u003e\n\u003cp\u003eIn the high-vibration world of kart racing, proper seat mounting can't be overlooked. A loose or improperly secured seat can affect driver control, comfort, and safety. The PPSMW washer steps in as a straightforward solution, compatible with standard seat mounting setups across various chassis. Whether you're prepping for a club race, practice session, or maintenance check, having spares like this on hand keeps downtime minimal.\u003c\/p\u003e\n\u003cp\u003eEasy to install with basic tools, simply pair it with your existing bolts and spacers for a snug fit. Its compact design stores effortlessly in your pit kit, ready for quick swaps. Racers appreciate the no-fuss reliability—no overcomplicated extras, just the washer you need, each time.\u003c\/p\u003e\n\u003cp\u003eInvest in quality hardware that supports peak performance. Order the PPSMW Seat Mounting Washer today and keep your kart's seating system race-ready.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eWhat is included with the PPSMW Seat Mounting Washer?\u003c\/h4\u003e\n\u003cp\u003eSold each, this is the washer only. It does not include a spacer or strut mount bolt, unlike the ESRK Repair Kit.\u003c\/p\u003e\n\u003ch4\u003eIs this washer compatible with my kart seat?\u003c\/h4\u003e\n\u003cp\u003eDesigned for standard seat mounting applications in go-karts. Verify fit with your specific setup.\u003c\/p\u003e\n\u003ch4\u003eHow many washers do I need for a full seat install?\u003c\/h4\u003e\n\u003cp\u003eTypically multiple per seat depending on mount points; sold individually for flexibility.\u003c\/p\u003e\n\u003ch4\u003eCan I use this as a direct replacement?\u003c\/h4\u003e\n\u003cp\u003eYes, it's a specialized washer similar to those in common repair kits for seat hardware.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Swift Karting","offers":[{"title":"Default Title","offer_id":53244458303806,"sku":"PPSMW","price":12.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/PPSMW_Seat_Mounting_Washer.jpg?v=1774902419"},{"product_id":"large-diameter-seat-mounting-washer-52mm","title":"52mm Large Diameter Seat Mounting Washer Black Anodized Aluminum","description":"\u003cp\u003eEnhance your kart seat installation with this Large Diameter Seat Mounting Washer (52mm OD x 2mm Thick). Manufactured from black anodized aluminum, the washer delivers the precise specifications needed for reliable seat mounting in competitive karting environments.\u003c\/p\u003e\n\u003cp\u003eFeaturing an 8mm center hole, it fits standard hardware seamlessly while the 52mm outer diameter and 2mm thickness provide the required dimensions for proper load distribution. This washer is 100% compliant for all organizations, ensuring your setup adheres to current technical regulations without issue.\u003c\/p\u003e\n\u003cp\u003eSpecifically engineered as the perfect solution to meet the new 2026 Ignite Seat Washer Rule, this component helps racers and teams prepare for updated chassis and safety standards coming to the sport. The black anodized aluminum finish offers both functional protection and a clean, professional appearance that complements any kart build.\u003c\/p\u003e\n\u003cp\u003eWhether maintaining a club-level kart or preparing a national-level machine, this seat mounting washer supports consistent performance and regulatory adherence. Its carefully controlled dimensions make it a dependable choice for repeated use across practice sessions and race weekends alike.\u003c\/p\u003e\n\u003cp\u003eSwift Karting brings this essential hardware to drivers seeking quality components that align with both current rules and future requirements. The washer's design reflects the exact needs outlined in the 2026 Ignite specifications while remaining versatile for broad application across different chassis types.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the exact dimensions of this seat mounting washer?\u003c\/h3\u003e\n\u003cp\u003eIt measures 52mm OD x 2mm Thick with an 8mm center hole.\u003c\/p\u003e\n\u003ch3\u003eWhat material and finish does the washer have?\u003c\/h3\u003e\n\u003cp\u003eThe washer is constructed from black anodized aluminum.\u003c\/p\u003e\n\u003ch3\u003eIs this washer approved for use in sanctioned kart racing?\u003c\/h3\u003e\n\u003cp\u003eYes, it is 100% compliant for all organizations.\u003c\/p\u003e\n\u003ch3\u003eDoes this product address the upcoming 2026 Ignite rule?\u003c\/h3\u003e\n\u003cp\u003eYes, it is perfect to meet the new 2026 Ignite Seat Washer Rule. and CKNA rule\u003c\/p\u003e\n\u003ch3\u003eWho is this large diameter washer designed for?\u003c\/h3\u003e\n\u003cp\u003eIt is designed for racers needing compliant seat mounting hardware that satisfies current and future technical standards.\u003c\/p\u003e","brand":"Swift Karting","offers":[{"title":"Default Title","offer_id":54334537171262,"sku":"LDSW","price":2.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/Large_Diameter_Seat_Mounting_Washer_52mm_OD_x_2mm_Thick.webp?v=1787796491"},{"product_id":"large-diameter-seat-mounting-washer-60mm","title":"60mm Large Diameter Kart Seat Mounting Washer Black Anodized","description":"\u003cp\u003eThis 60mm OD large diameter seat mounting washer delivers the precise dimensions required for secure kart seat and ballast installations. Made from black anodized aluminum, it offers excellent durability and a professional finish while measuring exactly 2mm thick with an 8mm center hole.\u003c\/p\u003e\u003cp\u003eDesigned to be 100% compliant for every racing organization, the washer is the ideal choice to satisfy the upcoming 2026 Ignite Seat Washer Rule. Racers use it inside the seat when mounting ballast for proper load distribution and rule adherence.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat are the exact specifications?\u003c\/h3\u003e\u003cp\u003e60mm outer diameter, 2mm thickness, 8mm center hole, black anodized aluminum construction.\u003c\/p\u003e\u003ch3\u003eDoes this meet current and future racing rules?\u003c\/h3\u003e\u003cp\u003eYes, it is 100% compliant for all organizations and specifically addresses the new 2026 Ignite Seat Washer Rule.\u003c\/p\u003e\u003ch3\u003eWhere should this washer be installed?\u003c\/h3\u003e\u003cp\u003eUse it inside the seat when mounting ballast to ensure proper support and compliance.\u003c\/p\u003e","brand":"Swift Karting","offers":[{"title":"Default Title","offer_id":54335834194238,"sku":"ASMW60","price":2.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/Large_Diameter_Seat_Mounting_Washer_60mm_OD_x_2mm_Thick.webp?v=1787799888"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/collections\/seatmountinghardware-rubber-seat-grommet-pack-of-four-4-rsgk.jpg?v=1788968195","url":"https:\/\/swiftkarting.com\/collections\/kart-seat-mounting-hardware-grommets-conical-washers.oembed","provider":"Swift Karting","version":"1.0","type":"link"}