DIN 1.4841/1.4845 Screwed Union, 310 Stainless Steel Threaded Nipple, ASTM A182 F310S Stainless Steel Socket Weld Reducer Insert, Grade 310H SS Threaded Union, ASME SA182 F310 SS Forged Cap, Stainless Steel 310S Threaded Pipe Cap, UNS S31000/S31008/S31009 Threaded Bull Plug, 310H Stainless Steel Coupling.