Threaded Rod 1.Standard: DIN975 2.Material: Carbon Steel. 3. Size: M3-M56,1M-4M; 4.Surface Treatment: Zinc,Black HDG We also have branch factory which can produce all kinds of threaded rod. Such as American type (UNC), European type, Japnese type, etc... Material: low carbon steel, mild carbon steelStandards: ISO, DIN 975, ANSI, JIS, GB, BS, etcGrade: 4.8, 5.8, 6.8, 8.8, 10.9 B7Diameter: M4-M52, ...