hex forged bolt and nut MOQ:50PCS grade:3.6 ,4. ... ,6.8 ,8.8 ,9.8 ,10.9 ,12.9 hex forged bolt and nutThe screw head and ( with the outer ... two parts of a class of fasteners, and nut used for fastening, connecting the two with a through hole components. The ... ,6.8 ,8.8 ,9.8 ,10.9 ,12.9 hex forged bolt and nut