... s needs 4). Standard: DIN975/976 Stainless steel threaded rod / thread rod / screw rod Product TypeAluminium threaded rodMaterialStainless steel, Carbon Steel, Aluminum alloy ... 5)Size: M3-M56)Coating: Nature, Zinc plating, blackening, hot dip zinc, environment-friendly zinc platingWe specialize in all kinds ... different standards(DIN,BS,ANSI), ranging from M3 to M52 Hot dipped galvanized thread rod