1, Size : M3- M27

2, Material : 1010,1022,1035,5140 and 4135.

3, Finished : Zinc plated ( Trivalent chromium or sexivalent chromium), dacromet plated, Nickel plated, oxidation plated, plain finish

4, Working Process : Cold Forged, hot forged, machining

5, Standard DIN931,933, 558,601,7990,6914 ; ASTM A325; IFI C-6,  C-10.