- Mechanical and physical : Grade 5 8 10 - Finish : Coating zinc , Coating Nickel , Coating chrome - Mechanical and physical : Grade 5 8 10 8.8 10.9 12.9- Material : 45# , 40Cr , 35CrMo ( SAE1045 ,SAE 5140 ,SAE 4135 )- Finish : Coating zinc , Coating Nickel , Coating chrome Deacromet wheel bolt and nut