... : 0.8mm ~ 12mm - Length: 1mm ~ 120mm - Material: Carbon steel, Aluminum, Brass, Stainless steel. - Plating color : Black, white and color zinc ... 7 in house QE, 4 senior R&D engineers.Quality standard: ISO 9001:2008Established in 2004,-------Product profile:Screws sort: ... tapping screws, Nylok screws, Plastic forming thread screws.(with all standard available: ISO, ANSI, DIN, JIS, GB... etc)Nuts sort ...