Nickel Plated Carriage bolt Sur:Zinc-Plated,Nickel-Plated,Plain Material:Carbon Steel,StainlessSteel,AlloySteel Product NameBolt,Nut,Auto ... .8,10.9,12.9,SUS304,SUS316Surface treatmentZinc,Chrome,Black,Nickel,Dacromat,HDG,Protective oilStandardGB,DIN,JIS,ANSI/ASME,ISO and ...