... nut, Attck inside the nut, word cross-hole nut.2.Bolts: Hex boltDIN933,DIN931), Hex flange nut(DIN6921), Wing bolt(DIN316 ... , Set screw(DIN914), Double sided screw, flat screw, Welding screw.4.Washers: Flat washer(DIN125), Spring washer(DIN127)5.Wrench: Hex socket wrench(DIN911 ...