... F436 4.Material:Carbon steel,Stainless steel Specification of our washer: 1.NameDIN9021 Stainless steel flat washers 2.StandardDIN, ... IFI, ISO, JIS, AS,BS, EN, SAE,ASTM3.GradeSAE,USS,F4364.MaterialCarbon steel(Q235,#1035,#1045), Stainless steel(303,304 ... .GradeSAE,USS,F4364.MaterialCarbon steel(Q235,#1035,#1045), Stainless steel(303,304,304L,316,316L),Brass( ...