9/16in. Drive Stud Washers

The 9/16in. Drive Stud Washer is a precision fastening component engineered for applications requiring reliable load distribution and vibration resistance. Designed for use with 9/16-inch drive stud assemblies, these washers serve technicians, maintenance crews, and equipment manufacturers who demand consistent, repeatable performance in demanding mechanical systems. Whether securing structural components, automotive assemblies, or industrial machinery, stud washers prevent bolt loosening and reduce stress concentration at critical connection points.

This stud washer features a flat profile with a 0.875-inch inner diameter and 1.188-inch outer diameter, providing optimal contact surface area for load spreading across a 0.563-inch thickness. Constructed from aluminum and finished in gold anodize, the washer offers excellent corrosion resistance while maintaining lightweight properties essential in weight-sensitive applications. The anodized finish protects against oxidation and environmental degradation, ensuring long service life in both indoor and outdoor conditions. The compact 2.25 x 0.65 x 2.9-inch package at just 0.05 lbs makes these washers ideal for high-volume storage and rapid deployment on job sites.

Professionals working with 9/16-inch drive fastening systems—including automotive technicians, heavy equipment operators, and industrial assembly lines—rely on stud washers to maintain bolt integrity under cyclic loading and thermal expansion. The gold anodized finish makes these washers particularly suitable for environments exposed to moisture, salt spray, or chemical exposure where standard steel components would degrade. Installation is straightforward: position the washer between the bolt head and work surface to distribute clamping force evenly and prevent fastener pullout. Compatible with standard 9/16-inch drive assemblies across numerous OEM platforms and industrial specifications.