Features: 1) Standard: DIN, ANSI/ASME, BS, GB, non-standard2) Diameter: 5 - 42mm3) Length: 10 - 300mm4) Material: stainless steel /carton steel5) Grade: 4.8, 6.8, 8.86) Finish: zinc plated, nickel plated, hot dipped galvanized, blackPacking:Into carton/sack and palletizedGenerally 25kg per unit