U-Bolt: 1.Material: 40Cr,45# Steel,35CrMo steel 2.Finished: Plating,Phosphating,Oxide Painting 3.Grade:8.8,10.9,12.9 Grade 10.9 U-Bolt:Tinmy can supply kinds of U-Bolt, wheel bolt & nut with different styles and sizes.1>.Material: 40Cr, 45# Steel, 35CrMo steel2>.Surface: Z.P. Black, Hot Dip, Plating, Phosphating, Oxide Painting, bake paint etc.3>.Size: M10 ~ M364>.Grade: 4.8, 8.8, 10.9, 12.9..5>. ...