Countersunk Washer 1/4in x 3/4in 50pk

The Countersunk Washer 1/4in x 3/4in 50pk from ALLSTAR PERFORMANCE (SKU ALL18658-50) is an essential fastener set designed for performance builders, mechanics, and fabricators who demand reliable hardware for critical assemblies. Countersunk washers serve a dual purpose: they distribute load across a wider surface area while accommodating flush-mount fastening where a clean, recessed appearance is required. Whether you're assembling engine components, suspension systems, or custom fabrication work, this 50-pack ensures you have ample stock to complete projects without interruption.

Manufactured from aluminum in a natural finish, these washers feature a 1/4-inch inner diameter (ID) and 3/4-inch outer diameter (OD) with a 0.188-inch thickness, engineered to work seamlessly with 1/4-inch fasteners in most automotive and industrial applications. The aluminum construction offers a lightweight alternative to steel while maintaining excellent corrosion resistance and adequate strength for moderate-load scenarios. The countersunk profile allows fastener heads to sit flush or slightly recessed into the mounting surface, eliminating protrusions that could interfere with clearances or create snag points on hoses, belts, or surrounding components.

Performance engine builders and restoration specialists favor this configuration for applications where aesthetics and functionality converge—header installations, intake manifold work, or any assembly where bolt heads must remain below the surface. The 50-piece quantity is ideal for projects that require multiple fastening points, eliminating trips back to the parts counter. Suitable for use with standard 1/4-inch cap screws or socket-head cap screws, these washers are compatible with both SAE and metric fastening systems, making them a versatile choice for mixed-platform builds and repairs.