Black Washers - 7/16 ID x .660 OD (10)

The Black Washers - 7/16 ID x .660 OD (10) from ARP are precision fastener components designed for critical assembly applications in tactical firearms and high-performance equipment builds. These washers are essential for ensuring reliable connections in various assembly tasks, including custom upper receivers and rail systems.

Each washer features a 7/16-inch inner diameter (ID) and .660-inch outer diameter (OD), providing an optimal bearing surface for standard 7/16" fasteners. The black oxide/phosphate finish resists corrosion and minimizes light reflection, making them suitable for tactical applications where low visibility is crucial.

Armorers, gunsmiths, and tactical equipment builders can rely on ARP washers for applications requiring consistent and reliable fastening. With a total weight of only 0.08 lbs for the ten-piece pack, these washers are designed to be efficient without unnecessary mass, ensuring they meet the demands of high-performance builds.