1.Size:M6-M56 2.Standard:DIN,ISO,GB,IFI and NON-STANDARD 3.Finish:PL,ZP,HDG,sheradizing,plain,black ... Thick gasket1.Size:M6-M562.Standard:DIN,ISO,GB,IFI and NON-STANDARD3.Finish:PL,ZP,HDG,sheradizing,plain,black oxide ... +34.Materialz:Carbon steel,Stainless steel,alloy steel and so on.Competitive price and sound quality are guaranteed.Packing with Gunny bags, carton ...