... .Grade: SAE,USS,F436 4.Material:Stainless steel Specification of our washer: 1.NameStainless steel DIN7980 High collar lock washer 2.StandardDIN, ... , EN, SAE,ASTM3.GradeSAE,USS,F4364.MaterialCarbon steel(Q235,#1035,#1045), Stainless steel(303,304,304L,316,316L),Brass(H59,H62 ... , EN, SAE, ASTM3.GradeSAE,USS,F4364.MaterialCarbon steel(Q235,#1035,#1045), Stainless steel(303,304,304L,316,316L),Brass(H59,H62 ...