D-bolts with nuts for BENZ heavy truck 1.Material:40 Cr 2.Grade:10.9 3.Surface ... steel U-bolts,center bolts for kinds of big brand heavy duty truck. 2.Usage:Collection of wheel bolts and nuts for ... fasteners,Collection of steel fasteners. 3.Truck Brands: Benz,Hino,Isuzu,Nissan,Renault,Volvo heavy duty truck. 4.Material:45# Steel(SAE 1045 ...