What Thread Is A Garden Hose?

Garden hoses are essential tools for keeping plants and lawns healthy and green. The size and type of hose depends on its application. An important consideration when buying a garden hose is understanding the types of thread it has, as connecting the hose to a spigot or to irrigation equipment requires fitting the correct thread and size. In this article, we will discuss the different types of threads found on garden hoses and offer helpful advice for selecting the right hose.

Types of Garden Hose Threads

Garden hose threads come in a few varieties. The most common garden hose thread in North America is the National Hose Thread (NHT), used for household watering systems such as connecting a hose to a faucet. Other types of threads used for garden hoses are the Garden Hose Thread (GHT), and the ISO 228 or DIN 2999 thread. To ensure an effective connection, it is important to understand the thread type and size found on the particular hose.

National Hose Thread (NHT)

The National Hose Thread is the standard thread found on most residential garden hoses, allowing the hose to be easily connected to a spigot. The thread pitch is 11-1/2 threads per inch, and the thread size is 3/4-11-1/2. The thread end has a 1-1/16 inch diameter and tapers within 1 and 1-1/4 threads from its end shoulder.

Garden Hose Thread (GHT)

The Garden Hose Thread is a less common version of the NHT, and is primarily used for connecting hoses for irrigation systems. Its thread pitch is also 11-1/2 threads per inch, but its size is slightly smaller at 13/16-11-1/2. The GHT connection has a diameter of 11/16 at its end shoulder, and tapers within 1-1/4 threads from the shoulder.

ISO 228

The ISO 228 thread is also known as the DIN 2999, and is the standard thread primarily used in Europe. This thread is a bit harder to find outside Europe, and its smaller size makes it more difficult to connect to some American garden hose equipment. The thread pitch is 10-1/2 threads per inch and the thread size is 1/2-14 NPS. The d is also 11/16 at the end shoulder, but it tapers within 1/2 to 1-1/4 threads.

Tips for Selecting the Right Hose and Thread

When selecting a garden hose, it is important to identify what type of thread it uses and to ensure that it is compatible with the connecting equipment. To ensure a good connection between the hose and the faucet, gardeners in the United States should look for hoses with the NHT thread. Those gardening in Europe may require the ISO 228 or DIN 2999 thread. It is important to pay attention to the thread size as well as the thread pitch, as the incorrect size can lead to a loose or unreliable connection.

Insights

In conclusion, choosing the right type of garden hose thread is an essential part of the planning process for installing a garden watering system. Different types and sizes of thread exist, and the type of thread can vary depending on the location. In the United States, the NHT thread is the most commonly used, while gardeners in Europe should look for hoses with the ISO 228 or DIN 2999 thread. It is important to pay attention to the thread size to ensure an effective connection and ensure a reliable and long-lasting garden hose.