heavy duty truck of Ubolt 1.Self-Marketing, 2.Competitive Price 3.Excellent Quality U Bolt1. Material: 45#(SAE1045)/40Cr(SAR5140)/35Crmo(SAE4135)2.Quality Grade: 8.8,10.9,12.9-grade3.Surface: Galvanized(Yellow/Silver), Phosphated, Dacromet4.We can make products strictly according to customers' requirement(drawings or samples) For more product details, please don’t hesitate to contact us. Your ...