Black Washers - 3/8ID x .625 OD Chamfer (10)

ARP Black Washers – 3/8" ID x .625" OD Chamfer (10-pack) are precision-engineered flat washers designed for high-performance fastening applications where load distribution and corrosion resistance are critical. These washers are suitable for various applications, including automotive, industrial, and tactical environments.

The chamfered edge design reduces stress concentration and improves assembly feel during installation. The black oxide finish provides corrosion protection, while the dimensions are optimized for distributing clamping force across a wide bearing surface while maintaining a compact profile.

These washers are specified for engine builds, firearms assembly, motorsports applications, and heavy-duty mechanical systems where OEM-quality fastening hardware is required. The 10-pack quantity provides adequate coverage for a typical rebuild or upgrade project while maintaining cost efficiency.