Stainless Steel 317 Threaded Pipe Cap, ASTM A182 F317L Stainless Steel Socket Weld Reducer Insert, UNS S31700/S31703 Threaded Bull Plug, 317 Stainless Steel Coupling, DIN 1.4438/1.4449 Screwed Union, ASME SA182 F317L SS Forged Cap, Grade 317 SS Threaded Union, 317L Stainless Steel Threaded Nipple.