DIN (Germany System), BS (Britain system), ANSI (American system), GB (International) and various non-standard pieces and rivets. The specification is M4-M16 and the length is 150mm.
    Our main product includes various outside hexagonal bolt, inside hexagonal bolt, flang bolts, cart bolt and coach bolt. Product intensity is divided into the following grades: 4.8, 6.8, 8.8, 10.9 and 12.9.