Our wheel bolts, Your Greates Choice! 1.real factory, high quality 2.excellent after sale service 3.competitive price Our wheel bolts , Your Greates Choice!1.real factory, high quality2.excellent after sale service3.competitive price 1. Quality: 10.9;12.92. Surface: Phosphated,Galvanized,Black oxide,Dacromet3. Materials: ASTM5140(40Cr)/35CrMo4. HRC: 33-375. Tensile stength: 1102N/mm26. Pack unit: ...