BSP

What is BSP?

British Standard Pipe (BSP) is a family 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 thread measurement

-Measure the O.D. (outer diameter) of the BSP thread.

-Take the O.D. measurement (in inches) and subtract ¼” (.25”). For example, a BSP parallel male thread measures out to O.D. 1”. Subtracting ¼” gives a thread size of ¾”.