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British Standard Pipe BSP thread chart, BSP thread chart showing TPI and drill sizes.
The Jargon, calculations, and charts defining BSP threads differ greatly from standard metric and inch threads. This webpage will explain the difference between the various series, how each parameter is defined, and show how to find the correct basic dimensions and tolerances for each thread.
British Standard Pipe (BSP) is a family of technical standards for threads that has been adopted internationally for interconnecting hoses and fittings by mating an external (male) thread with an internal (female) thread.
What is the BSP thread? The BSP thread is a type of pipe thread whose coils take the shape of a letter 'V' with an angle of 55 degrees. In addition, they have rounded ridges. BSP threads are also referred to as British or Whitworth threads (named after the inventor of this standard)
BSPT R 1/8 : Brith Pipe (BSP) Thread Dimensions and Tolerances. All the relevant data for this tread in one spot.
British Standard Pipe (BSP) is a set of technical standards for screw threads that has been adopted internationally for interconnecting and sealing pipes and fittings by mating an external (male) thread with an internal (female) thread.
BSP threads are measured in imperial measurements such as 1/8, 1/4, 1/2, 3/4 etc. BSP parallel threads commonly seal via a 30° chamfer on the male thread to a 30° recessed cone inside the female thread (swivel only).
