... 3000mm 4)Size: M4-M52 Product Detail: Product namegalvanized steel threaded rod sizeM3 M4 M5 M6 M8 M10 M12 M 14 ... ,M33,M36,M39,M42,M45,M48,52materialmild steel,soft steel,low steel,carbon steel Surface treatmentZinc Plated, Plain, Black ,HDGstandardANSI, DIN, and BSGrade 4. ... etc 1.we are manufacturer for making diverse all threaded rod. 2.high quality competitive price.3.good anti-corrosion ability4 ...