standard:DIN,ANSI/ASME,JIS,BSW Material grade:XM7(302HQ),304,304J3,(304HC),304M, Size:2mm-48mm, or customized ... washer 1.Size:M3-M64 2.Standard:DIN,ISO,GB,IFI and NON-STANDARD 3.Finish:PL,ZP,HDG DIN6916 ... heavy-duty washer1.Size:M3-M642.Standard:DIN,ISO, ... GB,IFI and NON-STANDARD3.Finish:PL,ZP,HDG, ...