- Mechanical and physical : Grade 5 8 10 - Finish : Coating hot dip zinc , Coating Zinc , Dacromet - Mechanical and physical : Grade 5 8 10 8.8 10.9 12.9- Material : 35# , 45# ,40Cr , 35CrMo ( SAE1035 ,SAE 1045 ,SAE5140 ,SAE4135 )- Finish : Coating hot dip zinc , Coating Zinc , Dacromet