hex forged bolt and nut MOQ:50PCS grade:3.6 ,4.6 ,4.8 ... ,8.8 ,9.8 ,10.9 ,12.9 hex forged bolt and nutThe screw head and ( with the outer screw ... of two parts of a class of fasteners, and nut used for fastening, connecting the two with a through ... components. The connection form called bolt connection. As the nut from the bolt rotation, and can make the two ... ,8.8 ,9.8 ,10.9 ,12.9 hex forged bolt and nut