Countersunk Washer Blk 1/4in x 3/4in 10pk

The Countersunk Washer Blk 1/4in x 3/4in 10pk by ALLSTAR PERFORMANCE is a precision fastening component designed for applications requiring a flush, professional finish. Countersunk washers are essential in motorsports, fabrication, and assembly work where bolt heads must sit flush with the mounting surface, eliminating protrusions that could interfere with aerodynamics, clearance, or aesthetics. This 10-pack offers the reliability and consistency that professional builders and enthusiasts demand.

Manufactured from aluminum and finished in black anodize, these washers feature a 1/4-inch inner diameter and 3/4-inch outer diameter, with a thickness of 0.188 inches. The countersunk profile allows fasteners to seat below the surface plane, creating a streamlined assembly that reduces drag and improves fit-and-finish in high-performance applications. Black anodizing provides corrosion resistance while maintaining a refined appearance across engine bays, suspension components, and custom builds. The aluminum construction keeps overall weight minimal—critical in racing and lightweight construction scenarios.

These washers are ideal for fabricators, race teams, and custom builders working on fuel systems, cooling lines, bracket assemblies, and interior trim where flush fastening is non-negotiable. They pair seamlessly with 1/4-inch fasteners and work across aluminum, composite, and steel mounting surfaces. The 10-pack quantity makes them practical for prototype builds, repairs, and stock replenishment in professional shops. Whether you're assembling a race engine bay or refining a show-quality build, consistent countersunk washers ensure every fastener meets your exacting standards.