... ten years supplier 4.partner: Canon stainless steel hex head bolts Material:stainless stell,carbon steel,alloy steelstandard:according to the drawingSize: ... JIS ANSI BSW GB ISOHead TypeFlat,JIS pan,Oval,Round,Binding, I.HD ,Brazier,PF.HD,Button,CheeseFillister, ... Tri-wing,Spanner,Clutch.etcRaw Material1.Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS4202.Steel:C45(K1045), C46(K1046),C203.Brass ...