Rely on the strength of our American-made 3/8" USS Flat Washers for your most demanding fastening jobs. Each washer is made from thru-hardened medium carbon steel, providing a hardened bearing surface that resists galling and maintains clamp load. With a plain finish and a broad USS (United States Standard) outside diameter, these washers are designed for optimal load distribution in structural connections. This bulk box contains 2,500 pieces for your project needs.
