... ,ss316,40Cr,etc 3.ISO SGS 4.black,zinc plated mild steel threaded rod din975 din976 threaded rod 1.various kinds of ... .high quality competive price.3.material of thread rod:stainless steel ,carbon steel.4.surface treatment:black,white blue,zinc nickel Passivation ... packing plastic&pallet or according require7.grade:stainless steel A2-70,A4-70,carbon steel 4.6,4.8,8.8,10 ...