... from China; Certification:ISO14001:2004 ISO9001:2001 SGS Specifications Stainless steel hex head wood screws Process Capablilities Standard ISO, GB, ... JIS, ANSI, BSW, ASMEGrade 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12 ... 8~M12Material Stainless, Steel,Brass, Steel,Bronze, Iron,Aluminum,Carbon steel,Alloy steel, silicon bronze,etc.Head/Tread styles According client's requiresCoating/Surface treatment ...