Black Washers - 7/16 ID x .995 OD (10)

Black Washers - 7/16 ID x .995 OD (10) from ARP are precision-engineered fastener components essential for any serious engine build or suspension upgrade. Whether you're assembling a high-horsepower stroker, rebuilding a turbo platform, or reinforcing critical bolt joints, these washers distribute clamping load evenly across component surfaces and prevent fastener head pull-through under extreme stress. ARP washers are engineered to work seamlessly with ARP fasteners, ensuring optimal preload retention and reduced joint separation in high-vibration and high-heat environments.

The 7/16-inch inner diameter accommodates standard 7/16-inch fasteners, while the .995-inch outer diameter provides substantial bearing surface area for load distribution across softer materials like aluminum, composite gaskets, or cylinder head covers. Black oxide finish on these washers matches ARP's dark-finished fastener kits and provides mild corrosion resistance in engine bay environments. Each pack includes 10 washers—a practical quantity for small-block builds, head stud kits, or intake manifold assemblies where multiple fastening points require uniform load characteristics and matching hardware aesthetics.

These washers benefit engine builders, performance mechanics, and enthusiasts performing head gasket replacements, cam gear installations, or custom engine modifications where fastener integrity directly impacts reliability. They integrate seamlessly with ARP fastener systems and are compatible with metric-equivalent 11mm applications. Installation is straightforward—place under bolt head before torquing to specification—making them ideal for DIY rebuilds and professional machine shop applications alike. Keep extra washers on hand when working with high-boost turbocharged builds or nitrous systems where joint separation risk increases.