MACHINE SCREWS: M0.6~M6 SELF-TAPPING SCREWS: ST0.8~ST6.3 Standard: ANSI, ISO, DIN, BS, ... JIS, AS Material: Lowcarbon steel, middle carbon steel, high ... Trading Company Product/Service(We Sell):wire rod,bolt,nut,thread rod,washer Registered Address:(Standard Unit Industrial Park, Haiyan ... Size:10,000-30,000 square meters electronic screws