... 4.Finish:plain,zinc plating, passivate... Feature: stainless steel 316L Screws A.Product specifications1.Bolt standard: DIN912, ANSI B18.3, DIN6912 or ... your need.2.Bolt material:8.8 grade, F10T, 10.9 Grade steel, 12.9 grade, 18-8 stainless steel, brass CuZn3 ... .Surface Finish:natural colour, polishing, nickel plated, chromated, zinc plating of various colour and etc.4.Bolt ...