... Certification:ISO14001:2004 ISO9001:2001 SGS Specifications Truss head hex socket machine screw Xiamen Haixingcheng Metal Products Co., Ltd. is ... some of prodcuts for our foreign ClientsProcess Capablilities StandardISO, GB, DIN, JIS, ANSI, BSW, ASMEGrade3.6, 4 ... bronze,etc.Head/Tread stylesAccording client's requiresCoating/Surface treatmentZinc,Tin,Sn/Pb,Nickel,Chrome,Titanium, Cadmium, Dacromet ...