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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.
Female S60x6 fitting with 19mm barbed end in brass specially designed for 1000-litre IBC tanks. This professional connection piece allows you to easily connect your tank to an irrigation system thanks to its 19mm diameter barbed end. Made from quality brass , this fitting ensures a perfect seal and optimal long-term...
Female S60x6 fitting with 19mm barbed end in brass specially designed for 1000-litre IBC tanks. This professional connection piece allows you to easily connect your tank to an irrigation system thanks to its 19mm diameter barbed end. Made from quality brass , this fitting ensures a perfect seal and optimal long-term...
The female S60x6 fitting with 25mm barbed end in brass by Multitanks connects directly to your 1000-litre IBC tank valve to create a practical and watertight water outlet. Made from quality brass , this fitting allows you to easily attach a garden hose to the 25mm barbed end. Ideal for garden watering, cleaning or any other...
The female S60x6 fitting with 25mm barbed end in brass by Multitanks connects directly to your 1000-litre IBC tank valve to create a practical and watertight water outlet. Made from quality brass , this fitting allows you to easily attach a garden hose to the 25mm barbed end. Ideal for garden watering, cleaning or any other...
Female S60x6 connection with 30mm brass fluted tip connecting to the valve of your 1000-litre IBC tank. It is possible to attach a garden hose to the fluted tip.
Female S60x6 connection with 30mm brass fluted tip connecting to the valve of your 1000-litre IBC tank. It is possible to attach a garden hose to the fluted tip.
The Female S60x6 Fitting with 16mm Barbed Hose Tail in Brass (Reference: 101369) connects directly to 1000-litre IBC tank valves. Designed specifically for irrigation, it allows easy hose attachment to the barbed outlet. Made from high-quality brass , this fitting ensures a leak-proof and durable connection. Supplied with 2...
The Female S60x6 Fitting with 16mm Barbed Hose Tail in Brass (Reference: 101369) connects directly to 1000-litre IBC tank valves. Designed specifically for irrigation, it allows easy hose attachment to the barbed outlet. Made from high-quality brass , this fitting ensures a leak-proof and durable connection. Supplied with 2...
Female S60x6 connection with 33mm brass fluted tip connecting to the valve of your 1000-litre IBC tank. It is possible to attach a garden hose to the fluted tip.
Female S60x6 connection with 33mm brass fluted tip connecting to the valve of your 1000-litre IBC tank. It is possible to attach a garden hose to the fluted tip.