Detailed Product Description Wheel nut , Hex nuts , Car nut , Hub nuts, Features:1) Material: Carbon steel,45#.2) Finish: Chrome Plated, Zinc Plated, black or colorful.3) Length: 37mm,48mm.4) Hex: 13/16.5) Size: 12x1.5 , 6) Can produce according to customers' drawings and samples.