... nut(DIN557), Square weld nut(DIN928,JIS1196), Hex weld nut(DIN929), Cap nut(DIN1587,JIS1183,UNI5721), Long nut(DIN6334), Spring nut, T nut(DIN1624), Wing nut(DIN315), Insert nut ... .2. We have our own factory to production of fasteners and professionally export fasteners under the standard of DIN, JIS, GB, ANSI, BS ...