G8.8 threaded rod black standard:DIN975 diameter:5mm-56mm length:100mm-6000mm surface:plain zinc H.D.G black G4.8/G8.8 ... Metals specializes in all kinds of threaded rods in different standard, also can manufacture special rods according to customers requirements.1 ... )material: Q235, Q215, 45#, 40Cr ,42CrMoB72)standard: DIN975, ANSI, GB, BSW, ASTM A193 B73)diameter: 5mm-56mm ...