threaded rod Diameter: M3~M100 Standard: GB901 / GB899 / GB898 / GB897 / DIN938 Diameter: M10~M100 Standard: DIN975 / DIN938 Length, surface processing and so on can be designed. Thread rod DIN975 Standard: DIN975 Diameter: M3~M39 Surface Treatment: Plain, Zink Plated, Black, HDG(Hot Dip Galvanization) threaded rod