bolts nuts 1.Bolt No:DIN933,DIN931,DIN934 2. ... material:Carbon steel 4.Effect:Connection,Fastening Export bolts nutsProducts Details: Products Name: bolts nuts Size: M3-M22 Standard NO.: DIN933 ... • Effect:Hex bolt is most widely used kind of bolts, it has the outer thread's main function is ... ,Africa,Oceania,Mid East,Asia,Western Europe,US, South Korea, Russia and so on other countries and area. WENZHOU ...