Detailed Product Description Hex nuts , Car nut , Hub nuts, Wheel nut. Features:1) Material: Carbon steel,45#.2) Finish: Chrome Plated, Zinc Plated, black or colorful.3) Length: 42.5mm, 37mm, .4) Hex: 13/16.5) Size: 12x1.5 , 12x1.25 , 14x1.5 .6) Can produce according to customers' drawings and samples.