Thread rods 1,Products DetailesMaterial1.Stainless Steel: SS201, SS303, SS304, SS316, ... ,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc.Heat TreatmentTempering,Hardening,Spheroidizing,Stress Relieving.StandardISO ... Evaluation 8,We are the best Choice for yr Welded thread rods