Spring Leaf U-Bolt U Bolt M17*76*276 Materials:1045/5140/35Cr-Mo/ Quality:8.8/10.9/12.9 Surface Protection: Black oxide, phosphated, Galvanized(Yellow/Silver) and dacromet Packing: 5PCS/plastic bag (GW: 20 35KGS.) Outer packing: Standard neutral carton fastened with plastic ribbon Satisfactory Service: 1. We can produce the hub bolts by your drawing and samples. 2. We can supply package by your design. 3. Otherscan beconsulted with us. Your inquiry will be our best support, we must offer youcompetetive prices upon receipt of your detail requirement. Thanks!