... China zinc plated bolts 1Standard: DIN,ANSI, BS, JIS 2 S 1)Standard: ISO, DIN,ANSI, BS, JIS, UNI 2)Size: M4-M423)Length:6-300mm4 ... )Material: Q235, 45#, Stainless5)Grade:4.8,8.8,9.8,10.9,12.9 6)Finishing:plain , zinc plated, HDG7)Packing: box, carton ... forward to establishing a long term business relationship with you! zinc plated bolt