... spray:24, 48, 60, 200 hours no red rust treatment: hot forging, cast material:SUS304,316 SIZE:M8-M30 Features:DIN580 Stainless ... ,BS 4278, ,ANSI B18.15...ETC3.Surface Finish: plain, galvanized, hot dip galvanized, chromated, polish, phosphated and etc..4. Norminal Diameter ...