Male Adapter - BSPT Thread

John Guest male adapter with BSPT/BSP thread

Family of fittings for connecting tube via push‑fit to threaded components. The variants combine different metric and imperial tube sizes with various BSP/BSPT threads.

What you should check

Choosing correctly requires confirming two independent parameters: the tube’s outside diameter and the component’s thread. The range includes tubes of 6 mm, 8 mm, 12 mm, 15 mm and imperial sizes such as 1/4", 5/16", 3/8" and 1/2", depending on variant.

Applications

Useful in beverage dispensing, water, compact equipment, camper setups and other compatible installations where you need to go from tubing to a threaded connection.

Installation

Depressurise, identify the thread, cut the tube square and insert it to the stop. On the threaded side, apply the sealing method appropriate to the component and avoid overtightening.

Common mistakes

Confusing metric and imperial tube, choosing the thread by visual diameter, or installing with the tube only partially inserted.

Frequently asked questions

Is there only one size?
No, there are numerous combinations.

Can I connect 12 mm tube?
Yes, if you choose a variant configured for 12 mm.

Are BSP and BSPT always interchangeable?
No, you should not assume that; check the exact thread on the equipment.

Which detail is most important?
Both: the correct thread and the correct outside diameter of the tube.