MACHINE SCREWS: M0.6~M6 SELF-TAPPING SCREWS: ST0.8~ST6.3 Standard: ANSI, ISO, DIN, BS, JIS, ... company covers an area of 8,380,000 square meters, with a standard workhouse of 20,000 square meters. We own ... Information Factory Size:10,000-30,000 square meters electronic screws