... ), Cap nut(DIN1587,JIS1183,UNI5721), Long nut(DIN6334), Spring nut, T nut(DIN1624), Wing nut(DIN315), Insert nut, Attck inside the ... (DIN6921), Wing bolt(DIN316). Carriage bolt(DIN603), Allen bolt(DIN912), T bolt.3.Screws: Drywall screw, Wood screw. Self driling screw ... .2. We have our own factory to production of fasteners and professionally export fasteners under the standard of DIN, JIS, GB, ANSI ...