Not sure which fitting you need? Tell us what you have, we show you what screws onto it — live prices and stock.
Pipe thread chart: inch / mm conversion (BSP, 15/21, 20/27, S60x6)
A “1/2 inch” thread measures 20.96 mm, not 12.7: in plumbing, the inch size is not converted, it is read from a chart. Here you will find the inch / mm correspondence of every common thread (BSP or “gas thread”, French names 15/21 · 20/27 · 26/34, NPT, S60x6 IBC tanks, Guillemin, Camlock, PVC), a tool that identifies your thread and the fitting that goes with it, and the pitfalls to avoid.
Which thread do you have? Which fitting do you need?
No need to know the name of your thread. Tell us what you need to connect to, or type what you know (“20/27”, “3/4 inch”, “S60x6”, “26.4 mm”): we identify the thread and show you the fittings that go with it. Dimensions according to ISO 228, ISO 7 and ASME B1.20.1.
✔ Shipped next working day from our stock✔ 4.5/5 from more than 6,400 customer reviews✔ Not sure? Describe what you need, we will find the fitting with you⎙ Printable thread gauge (PDF, actual size)
No need to know the name of your thread. Just answer the question: what do you need to connect to?
With a caliper, measure the outside diameter of a male (thread visible on the outside) or the inside diameter of a female (thread inside the hole), at the root of the thread.
The 7000 Series 90° Brass Equal Compression Tee is the high-performance bypass solution (PN 25) for polyethylene tubing. Made of CW617N brass and certified for drinking water, it guarantees superior mechanical robustness thanks to its H62 notched ring and its design to DIN 8076 standards. Ideal for water supply...
The 7000 Series 90° Brass Equal Compression Tee is the high-performance bypass solution (PN 25) for polyethylene tubing. Made of CW617N brass and certified for drinking water, it guarantees superior mechanical robustness thanks to its H62 notched ring and its design to DIN 8076 standards. Ideal for water supply...
The 7000 Series Brass T-Fitting is an innovative branch solution for your polyethylene pipe networks. Its particularity lies in its "double flow" central output, offering both a male thread for standard equipment and a reduced female thread for measuring instruments. PN16 certified, this compression fitting guarantees flawless robustness and sealing, ideal for...
The 7000 Series Brass T-Fitting is an innovative branch solution for your polyethylene pipe networks. Its particularity lies in its "double flow" central output, offering both a male thread for standard equipment and a reduced female thread for measuring instruments. PN16 certified, this compression fitting guarantees flawless robustness and sealing, ideal for...
The 7000 Series Brass Compression Tee with Center Female Thread is the high-performance branch solution (PN 25) for your PE networks. Made of CW617N brass and certified for drinking water, it offers an ISO 7-1 compliant center tapped outlet for easy accessory connection. Its H62 notched ring system and wide...
The 7000 Series Brass Compression Tee with Center Female Thread is the high-performance branch solution (PN 25) for your PE networks. Made of CW617N brass and certified for drinking water, it offers an ISO 7-1 compliant center tapped outlet for easy accessory connection. Its H62 notched ring system and wide...
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