1.Name:Stainless steel DIN7980 High collar lock washer 2.Size: M3-M36 3.Grade: SAE,USS,F436 ... Specification of our washer: 1.NameStainless steel DIN7980 High collar lock washer 2.StandardDIN, IFI, ISO, JIS, AS,BS, EN, SAE ... else of washers we can offer? 1.NameFlat washer,Spring lock washer, Square washer,Dished washer,Bevel washer,etc2.StandardDIN, IFI ...