1/4", ID=5/16", OD=3/4", THK=0.051"-0.080" USS Flat Washers, Steel, Hardened

USS (United States Standard) flat washers are also known as plain washers or plate washers.The nominal diameter is the bolt size to use for this flat washer.Diameter (Nominal): 1/4"Inside Diameter (Nominal): 5/16"Outside Diameter (Nominal):...