(1)double end bolt (2)according to customers' drawings (3)4.6 ... )Q235.35&45 steel (5)plain,black,zinc,hdg Name:double end bolt:Model:ss5, ss8, ss25, ss36Size:D3/4*4 ... : 4.6, 4.8, 8.8Surface: plain, zinc, black, hdgPack:Double-layer woven bag+Free fumigation wooden palletUsed on wooden sleepers ,we ...