*****: ASTM A193 B7 Thread ROD *****: ASTM A193 B7, B7M, B8, B8M;ASTM A320 L7, L7M, B8, B8M; *****:Plain, black oxygenation, black phosphated, zinc plated, etc. 4.Standard: DIN975; ASTM A193 , ASTM A3205.Diameter: 1/2" ~ 4" 6.Length:4" ~ 235"(normally 12 feet) , 20mm~6000mm ...