B7-Thread rod 1.Standard:DIN975 B7 IFI 2.Finish:Plain Zinc 3.Material:Carbon steel B7-Thread rod1.Standard:DIN975 B7 IFI2.Finish:Plain Zinc3.Material:Carbon steel4.Dia: Mm3 to mm52; Length: 1m to 6 ASTM A193 B7 THREAD ROD DIAMETER: 1/2" ~ 3 3/4" LENGTH: 20mm ~ 6000mm (Our studding is usually 12FT length and studbolt is below 1000mm) SURFACE FINISHED: SELF COLOR, BLACK, ZINC PLATED, HDG.