... .9S,12.9S Finish:Passivated,Black Oxide,Zinc,Dacromet Hexagon head bolts-full thread DIN933Material:Stainless Steel,Carbon Steel,Alloy Steel1 ... ) Various kinds of bolts are are available2) Can be made with different tensile strength, such as 8.8s,10.9s3 ... different finish, such as bright, zinc plated, black4) Can be made with different standards, such as ISO, DIN, ANSI, BS and ...