Countersunk Washer Black #10 50pk

The Countersunk Washer Black #10 50pk from ALLSTAR PERFORMANCE is an essential fastening component designed for high-performance automotive and mechanical assembly applications. These countersunk washers accommodate #10 diameter fasteners and are engineered to distribute load evenly while allowing bolt heads to sit flush with mounting surfaces. Whether you're building a race engine, fabricating custom suspension components, or performing routine maintenance on precision equipment, this 50-piece set ensures you have ample inventory for multiple projects without frequent reordering.

Constructed from aluminum and finished with black anodizing, these washers deliver corrosion resistance and a professional appearance across harsh environments. The 1-inch outer diameter and 0.188-inch thickness create a robust bearing surface that prevents fastener pull-through on softer materials and composite surfaces common in performance vehicles and custom builds. The countersunk design allows fasteners to recess smoothly, eliminating protrusions that could interfere with aerodynamics, clearances, or aesthetic finish. Black anodization not only enhances durability against oxidation but also provides a clean, unified appearance on engine bays and visible assemblies.

Technicians, fabricators, and motorsports enthusiasts benefit most from this bulk pack format, which reduces downtime by maintaining a ready supply of properly sized fastening hardware. The lightweight aluminum composition makes these washers ideal for weight-conscious builds where every fraction of an ounce matters. Compatible with standard #10 socket head cap screws, machine screws, and bolts, these washers integrate seamlessly into existing fastening systems across engine blocks, intake manifolds, accessory brackets, and frame components. The 50-pack quantity provides exceptional value for shop environments and serious hobbyists who demand consistency and reliability across all assembly points.