... , 316, 316L 2.Process: CNC machine 3.Tolerance:0.02 Fine Thread Stainless Steel Tapered Rod Details: Material 301, 302, 303 ... , 304, 304L, 316, 316L,8620,4140 etc.Surface TreatmentPolishing, Powder coating, Spraying, Anodising, Zinc Plating,Chrome Plated, Teflon and etc ...