square threaded rod 1.M5-M100 2.threaded rod material,ss304,ss316,40Cr,etc 3.SGS,ISO 4.black,zinc plated,HDG,etc square threaded rod 1.Features Material: Carbon steelFinished: PL, Zinc plated, HDG, Dacromet zinc, Black oxide, Nickel plated, Chrome plated, Cr+3, Brass plated Grade: 4.8-8.8 Standard: DIN, ANSI/ASME, BS, GB, JIS, Non-standard Diameter: M6-M39,1/4-1 1/2 Length: 30MM-3000MM,1"-12' ...