... :DIN127B double coil spring lock washer1.Standard:ANSI/ASME, DIN, BS, IFI, JIS ISO, GB,etc.,2.Finish:galvanized,nickel plated,black ... -M22 Material: Carbon steel,stainless steel Standard: ANSI/ASME, DIN, BS, IFI, JIS ISO, GB,etc., Finish: galvanized,nickel plated,black coating ...