G Thread (BSP) to NPT (US Thread) Pipe Fitting Adapter with G Thread Bonded Washer Seal Included (1/2" FG x 1/2"MNPT (2 Pieces)) : Amazon.co.uk: DIY & Tools
BSP Socket Coupling Full & Half A4 Stainless Parallel BSPP G Thread
G or R or BSP | Determination – Thread Types | Screw Joints | Technical information | BOLA - Tubing, Stirrer Shafts, Magnetic Stirring Bars - Labware made of PTFE
Fitting Connection Types: British, German & Japanese
Metric and NPT Connections for Pressure Gauges - WIKA blog
Types of threads: BSP threads · Products · Blog · RMMCIA