... .over ten years supplier 4.partner: Canon stainless steel hex head bolts Material:stainless stell,carbon steel,alloy steelstandard:according to ... ,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Chromate,Polish,Electro Painting,Black Anodize,Plain,Chrome plated Normal DiaM4-M30Heat TreatmentTempering ... at anytime anywhere.Main customerCanon, Airmate, Flextronics stainless steel hex head bolts