1.Item:DIN127B double coil spring lock washer 2.Finish:galvanized,nickeled,etc., 3.Material:stainless steel,Carbon steel ... DESCRIPTION:Item:DIN127B double coil spring lock washer1.Standard:ANSI/ ... ASME, DIN, BS, IFI, JIS ISO, GB,etc.,2.Finish:galvanized,nickel plated ...