ARP SAE Washer, 0.312" ID, 0.550" OD, 0.095" Thick, Chromoly, Black Oxide, Set of 10

A true high performance washer from ARP, available in a variety of sizes and thicknesses, and with or without I.D. (inside diameter) chamfers. Our washers are constructed from either premium chrome moly with a black oxide finish or polished ARP stainless steel and are hardened.