... Iron Pipe Fittings(elbows, tees, sockets, bends, nipples, unions, crosses, flanges, plugs, backnuts, crosses over, round caps, etc. ) 2. Thread ... Threads: ANSI/ASME B1.20.1 Din Standard: Materials: DIN1692 Dimensions: EN 10242 DIN2950 Threads: ISO 7/1 DIN2999 British Standard ... : Materials: ISO 5922 BS 143 and BS1256 Dimensions: ISO 49, Threads: ISO 7/1 Malleable Iron Pipe ...