... ), 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, Attck inside ... the nut, word cross-hole nut.2.Bolts: Hex boltDIN933,DIN931), Hex flange nut(DIN6921 ...