... manufacturing each kind of architectural hardwares including barbed roofing nail,wire nail,steel nail,iron hinges,bolts, knob and other metal ... in china today. Specifications: 8BWG -----13BWG Length: 1"---6". Shank Diameter: M1.2-M6.0 BWG6-16 Material : Q215 Carbon steel ... , also we can supply you the electro galvanized iron wire, Black Annealed Wire. We have rich experience and we have exported them ...