... China; Certification:ISO14001:2004 ISO9001:2001 SGS Specifications Stainless steel hex head wood screws Process Capablilities Standard ISO, ... etc.Size M0.8~M12Material Stainless, Steel,Brass, Steel,Bronze, Iron,Aluminum,Carbon steel,Alloy steel, silicon bronze,etc.Head/Tread ... and mainly produces forged fastener precise screws, which are made of titanium, copper, aluminum, iron, stainless steel and so ...