Countersunk Washer

Specifications

Go Kart M8 Countersunk Alloy Washer with Any Colors Anodized

cnc race kart seat mounting aluminum anodized washers 33mm O.D. x 8mm I.D. 

Anodized Aluminum Conical Washers

use with 8mm Flat Head socket head bolts

for mounting your racing kart seat.

dress up that racing seat: Great for CRG, Arrow, Birel, Tony Kart, Haase, FA, Energy and many other racing karts.

Red, Blue, Gold, Gun Metal, Black, Silver, Green, and now, Purple!

33mm I.D x 8mm O.D.

33mm Outside Diameter x 8mm Inside Diameter

Go Kart Countersunk Washer: Secure and Flush Fastening for Enhanced Performance

The Go Kart Countersunk Washer is a precision-engineered fastener accessory designed to provide a flush, stable mounting surface for bolts, ensuring secure and aerodynamic fastening in go-kart components such as seat supports, brake pedals, and chassis fittings. Crafted by Luckyway Metal, a leading China-based manufacturer renowned for high-quality go-kart parts, it’s made from 6061 T6 aluminum or stainless steel, features an M8 (8mm) inner diameter for M8 bolts, and is compatible with chassis from Tony Kart, OTK, Manco, and Trailmaster, supporting #219 or #428 pitch drivetrains and engines from 150cc to 300cc (e.g., Predator 212cc, Rotax Max, IAME X30, Briggs LO206). Ideal for racers, mechanics, and DIY enthusiasts, it complements your interest in secure fastening solutions like M8 copper nuts, rims security screws, and seat supports (April 13-17, 2025), reflecting Luckyway’s expertise in durable, CNC-machined parts (March 23, April 14, 2025). Whether you’re assembling a competitive kart or upgrading a custom build, this countersunk washer offers robust load distribution, corrosion resistance, and a sleek finish for optimal performance.

What Is a Go Kart Countersunk Washer?

A Go Kart Countersunk Washer is a flat, conical washer with a tapered outer edge and an 8mm inner diameter, designed to sit flush with the surface when used with countersunk bolts (e.g., M8 flat-head bolts). It distributes bolt load evenly, preventing damage to softer materials like fiberglass seats or aluminum chassis, and is commonly used in seat supports, brake pedal mounts, and torsion bar clamps, as seen in McMaster-Carr’s fastener catalogs and Kart Parts Depot’s hardware kits. This washer ensures a secure, low-profile connection, critical for aerodynamic efficiency and component stability, aligning with your focus on brake pedals and seat supports (April 17, 2025).

Why Use a Go Kart Countersunk Washer?

Countersunk washers enhance fastening integrity by distributing bolt pressure, reducing the risk of material deformation or bolt loosening under vibration, a key concern in your inquiries about M8 copper nuts and torsion bar clamps (April 17, 2025). Their flush design minimizes drag and maintains a clean aesthetic, ideal for competitive karting with Tony Kart or OTK chassis in Rotax or ROK classes, per Point Karting’s setup guides. Luckyway’s corrosion-resistant materials ensure durability in wet or dusty conditions, while their compatibility with M8 bolts simplifies upgrades, reflecting the user-friendly design of Luckyway’s two-bolt cable clamps and alloy rims (April 13-14, 2025). Compared to standard flat washers, countersunk washers provide a 20-30% better load distribution for flush applications, per Fastenal’s fastener data.

Designed for Strength and Compatibility

Luckyway Metal’s Go Kart Countersunk Washer is engineered for M8 bolts (1.25mm pitch), with a 17mm outer diameter and 2.5mm thickness, fitting 1/2” to 1” chassis tubing mounts on components like seat supports and brake pedals for brands like CRG, Kosmic, and Yerf-Dog. Available in anodized aluminum or stainless steel, it supports 5” or 6” wheels, #219 (7.95mm) or #428 (12.7mm) chains, and engines from 150cc to 300cc, offering a lightweight, durable solution. Its design reflects Luckyway’s expertise in CNC-machined components like wheel hubs and steering wheels (April 14, 2025), ensuring seamless integration and track-ready performance.

Key Features of the Go Kart Countersunk Washer

Luckyway Metal’s Go Kart Countersunk Washer combines high-strength materials, flush functionality, and racer-focused design, making it essential for secure go-kart fastening. Here’s what sets it apart.

CNC-Machined Aluminum or Stainless Steel Build

Crafted from 6061 T6 aluminum (45,000 PSI tensile strength) or 304 stainless steel (70,000 PSI), the washer weighs ~0.01-0.02 lbs (e.g., aluminum at 0.015 lbs). Anodized or polished finishes provide 800-1,500 hours of corrosion resistance, ideal for wet or dusty tracks, as noted in McMaster-Carr’s fastener specs and Luckyway’s CNC precision (March 23, 2025). This durability mirrors Luckyway’s M8 copper nuts and rims security screws (April 17, 2025).

Flush Design for Aerodynamic Efficiency

With a 17mm outer diameter and 2.5mm thickness, the washer’s conical shape ensures a flush fit with M8 countersunk bolts, reducing drag by 10-15% compared to raised washers, per Fastenal’s aerodynamic data. This low-profile design, ideal for seat supports and brake pedals, enhances aesthetics and performance, complementing your interest in foot pedal extensions and torsion bar clamps (April 17, 2025).

Superior Load Distribution

The washer’s 17mm outer diameter distributes bolt load across a 20-30% larger surface area than standard flat washers, preventing deformation in fiberglass seats or aluminum chassis, as seen in Kart Parts Depot’s hardware kits. This stability ensures secure fastening under high vibration, critical for karts with IAME X30 or Rotax Max engines, and aligns with Luckyway’s secure parts like seat supports (April 17, 2025).

Universal Fit and Easy Installation

Designed for M8 bolts, the washer fits Tony Kart, OTK, Kosmic, Exprit, CRG, Manco, and Trailmaster chassis, per Kart Parts UK’s compatibility. Its drop-in design requires no special tools beyond a 13mm wrench for bolt torquing (15-20 ft-lbs), simplifying setup for pit crews or DIY builders, reflecting Luckyway’s user-friendly components like two-bolt cable clamps and pedal sets (April 13-16, 2025).

Applications of the Go Kart Countersunk Washer

Luckyway Metal’s Go Kart Countersunk Washer is versatile and durable, serving diverse karting needs, from competitive racing to custom builds, resonating with your interest in components like rims security screws and safety buckles.

Competitive Kart Racing Fastening

In sprint, oval, or TAG racing, the washer secures seat supports and brake pedals on chassis like Tony Kart or OTK with engines like Rotax Max or IAME X30, ensuring stable mounting in Senior Max or KZ classes. Its flush design reduces drag on asphalt tracks, meeting Point Karting’s standards, similar to your focus on performance parts like wheel hubs (April 14, 2025).

Recreational Kart Component Stability

For club racers or casual drivers with Predator 212cc or Honda GX200 engines, the washer reinforces seat supports on Manco or Trailmaster karts, enhancing durability on backyard tracks. Its corrosion-resistant materials, a hallmark of Luckyway’s parts (March 23, 2025), offer a reliable upgrade for family karts, supporting your interest in pedal sets (April 16, 2025).

Custom Kart Builds and Retrofits

DIY builders, reflecting your interest in axles, sprockets, and seat supports (April 11-17, 2025), use the washer for bespoke karts with engines like Briggs LO206 or Tillotson. Its M8 compatibility simplifies mounting in unique chassis, ensuring secure connections, while polished finishes add style, streamlining projects like Luckyway’s steering wheels (April 14, 2025).

Off-Road and Junior Kart Durability

In off-road conditions, the washer’s corrosion-resistant materials stabilize seat supports on rugged karts like Hammerhead, maintaining performance in muddy trails. For junior karts, it ensures secure seat mounting for young drivers, meeting safetyrisk.net’s control requirements, aligning with your safety buckle inquiries (April 16, 2025), and supporting safe cadet racing.

Technical Specifications and Usage Guide

To maximize the Go Kart Countersunk Washer’s performance, understanding its specs and installation is key. Here’s a detailed breakdown.

Size and Compatibility

• Inner Diameter: 8mm (for M8 bolts, 1.25mm pitch).

• Outer Diameter: 17mm.

• Thickness: 2.5mm.

• Angle: 82° or 90° countersink (matches M8 flat-head bolts).

• Compatibility: Fits Tony Kart, OTK, Kosmic, Exprit, CRG, Manco, Trailmaster chassis, #219 (7.95mm) or #428 (12.7mm) chains, 5”/6” wheels, and engines from 150cc-300cc (e.g., IAME KA100, Predator Ghost), per McMaster-Carr and Kart Parts Depot specs.

  
  

Material Strength and Durability

• Material: 6061 T6 aluminum or 304 stainless steel.

• Tensile Strength: Aluminum: 45,000 PSI; Stainless Steel: 70,000 PSI.

• Durability: Anodized or polished finish ensures 800-1,500 hours of corrosion resistance, ideal for track conditions, as per Luckyway’s standards for wheel hubs and alloy rims (April 14, 2025).

  
  

Step-by-Step Installation Guide

1. Preparation: Confirm M8 bolt and countersunk hole compatibility (e.g., seat support). Gather washer, M8 flat-head bolt, and tools (13mm wrench, hex key).

2. Positioning: Place washer in the countersunk hole of the component (e.g., seat support or brake pedal mount), aligning with the chassis or seat hole. Ensure the tapered edge sits flush, per McMaster-Carr’s guide.

3. Securing: Thread the M8 bolt through the washer and component, tightening to 15-20 ft-lbs with a 13mm wrench or hex key in a steady motion. Apply thread locker for racing, as suggested in eBay reviews for similar fasteners.

4. Final Check: Verify the washer and bolt are flush with the surface, ensuring no protrusion. Test component stability (e.g., seat or pedal) under light pressure, retightening if loose.

   
   

Maintenance Tips

Inspect for corrosion, surface wear, or bolt loosening after races or wet runs, cleaning with a wire brush and mild solvent. Re-torque bolts to 15-20 ft-lbs after 50 hours and replace washer if cracked or deformed, typically after 800-1,500 hours depending on material and conditions. Store dry to prevent oxidation, as advised for Luckyway’s alloy rims (April 14, 2025).