u bolt with nut Self-Marketing, Competitive Price Excellent Quality u bolt with nut1.Material:45#(SAE1045), 40Cr(SAE4015) 2.Strength: 8.8, ... ,12.9-grade3.Finish: black, electronic galvanized, hot-dipped galvanized4.U-bolt size(diameter,width,length): according to customers' requirement.5.According ... customers' drawings or samplesLooking forward to establish Long-Term Cooperation u bolt with nut