hex forged bolt and nut MOQ:50PCS grade:3.6 ,4.6 ,4.8 ,5. ... screw thread cylinder ) is composed of two parts of a class of fasteners, and nut used for fastening, connecting the two with ... a through hole components. The connection form called bolt connection. As the nut from the bolt rotation, and ... ,9.8 ,10.9 ,12.9 hex forged bolt and nut