Threaded Fittings Sockets Nipple Elbows T-pieces Reducers Unions Plugs Caps Cross Pieces Nuts Screws Seals Replacements Turned Fittings Stainless Steel Nuts – DIN 934 Attention: No certificate available for casted fittings. Hexagon Nut, # 327, AISI 316, casting type, sim. DIN 431Choose Variation Hexagon Nut, # 327, AISI 316, casting type, sim. DIN 431 Hexagon Nut, acc. ISO 4032/ DIN 934, A2 / AISI 304Choose Variation Hexagon Nut, acc. ISO 4032/ DIN 934, A2 / AISI 304