What Size Is Garden Hose Thread?

From connecting a garden hose to watering your plants, garden hose thread is an important element of gardening. To help make the most of your water line's efficiency, let's explore the size of garden hose threads and related topics.

What Is a Garden Hose Thread

A garden hose thread, also known as GHT or female hose threads, is a threaded connection typically found at the end of a hose or spigot. Essentially, it's what your garden hose nozzle connects to. GHT thread is compatible with connectors, such as hose fittings, valves, and faucets. It can also be used to join separate pieces of garden hoses when they are cut.

Understanding GHT Sizes

Garden hose threads come in two standard sizes, the US (also known as NHR or NST) and the British standards (also known as BSP). Though it might seem like a small detail, using the wrong size can cause major issues.

In terms of the US-style garden hose thread, or NHR, the thread size is a half-inch in diameter with 11.5 threads per inch. The British-style, or BSP, is 11.2mm in diameter with an 8.5 threads per inch.

How to Buy the Right Size Garden Hose Thread

When you're ready to shop for GHT components, it's important to measure the thread. To start, you'll need a thread gauge, a tool used to measure thread by size. Secondly, you'll measure the threads diameter, which is the distance across the threads. Once you measure, you'll have a better idea of whether you need BSP or NHR.

Which Standard Is Most Commonly Used?

The US standard, or NHR, is the most commonly used garden hose thread size. This size is commonly found in the United States, and it is becoming increasingly popular in other parts of the world.

Why Is Garden Hose Thread Size Important?

GHT size affects the way water flows in a garden hose system. This, in turn, affects how efficiently you'll be able to water your garden. Ensure you buy the right size not only for your garden hose nozzle but also for any connecting pipes, fittings, valves, and water pumps.

Final Word

Now that you have a better understanding of what size is garden hose thread, you'll be able to make the most of your garden hose system. Just remember, when in doubt, use the half-inch US threads and you'll be ready to go.