IMPA 351172 HOSE COUPLING 2/3 1/2" X 13 MM BSP FEMALE BRASS
Straight G1/2 Bsp Male Thread to 1/2 Inch 12.7mm Hose Barb End Plastic Threaded Pipe Fittings - China Male Thread to Barb Fitting, Threaded Pipe Fittings | Made-in-China.com
BSP and NPT and other worldwide Thread Information
20.9mm 1/2" BSP Black Malleable Tubing 4282088 |Pipe Light and Lampholder Fittings – Spares2you UK
1/2" bsp Male x 27 mm x 2 mm
M18x1.5 Parallel To 1/2" BSP Parallel M-m Adapter | 0226820-08-06