BS 1740 – wrought steel pipe fittings (screwed BS 21 R-series thread). Metric units This British Standard is the official English language version of EN 10241:2000. It supersedes BS 1740-1:1971 which is withdrawn.
Thrd Equal 90 Deg Elbow Thrd Equal 45 Deg Elbow Male and Female Thrd Equal 45 Deg Elbow Thrd Equal Cross Thrd Equal Tee Thrd Reducing Tee Thrd Full Coupling Type Heavy Thrd Half Coupling Type Heavy Thrd Full Coupling Type Medium Thrd Half Coupling Type Medium Square Head Plug Hex Head Plug Hex Head Bushing Thrd Reducer Equal Hexagonal Nipple Thrd Pipe Nipple Thrd Running Nipple Thrd Close Nipple Thrd Barrel Nipple Thrd Union With Flat Seat Thrd Union With Taper Seat Hexagonal Nut Thrd Cap With Flat Face Thrd Cap With Round Face Long Screw