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Determine threads easily with the thread template
The thread template is one of those small but powerful tools that can simplify your work and solve common problems with minimal effort. You might already have one in your toolbox and use it regularly without even realizing its full potential. However, when it comes to the world of "thread measurement," there are many misunderstandings and ambiguities that often lead to confusion.
To truly benefit from a thread template, it's important to understand what it can and cannot do—and how to use it correctly. That’s why this blog post is here: to answer all your questions about thread templates and help you make the most of them.
**What Is a Thread Template?**
A thread template is a handy tool used to check the pitch of a thread. It’s typically a sheet metal plate with a specific thread profile cut out in negative form. These plates are arranged in a fan-like shape and attached to both ends of a handle, making them easy to handle and less likely to be lost.
Depending on the manufacturer, thread templates may come in sets that cover different thread types, such as metric or Whitworth threads. Some are designed for a single thread type, while others combine multiple types—sometimes even mixing metric and imperial measurements. The number of thread sizes available can vary, so it may take some time to find the right one for your needs.
**How to Use a Thread Template Correctly**
The most common method for checking thread pitch using a template is the **light gap technique**. Here’s how to do it:
1. **Choose the Right Template**: Make sure you’re using a thread template that matches the type of thread you're checking. If you're unsure, try other methods first to avoid inaccurate results.
2. **Apply the Template**: Start by placing the template against the thread. It doesn’t matter which one you begin with, but a quick visual assessment can save time later.
3. **Press the Template Against the Thread**: If the template doesn’t fit, move to the next one. Keep trying until you find a good match.
4. **Use the Light Gap Method**: Hold the thread and template up to a light source. If light passes through the gap, the pitch doesn’t match. If no gap is visible, you’ve found the correct pitch.
**How Accurate Are Thread Templates?**
While the light gap method may seem simple, it’s actually a widely used technique in professional settings. Depending on the quality of the template and the lighting conditions, even tiny deviations can be detected. However, the accuracy also depends on your own judgment and the environment. When used properly, thread templates provide reliable results, especially for external threads.
For internal threads, the process can be more challenging or even impossible, which limits their use in such cases.
**Thread Gauge vs. Thread Template: What’s the Difference?**
Thread templates are sometimes called thread gauges, but they are not the same thing. A thread gauge is a precision tool that screws onto an external thread or into an internal one, checking for more than just pitch. It ensures that the thread meets strict tolerances and is commonly used in manufacturing to ensure legal compliance.
In contrast, a thread template is a simpler tool meant for quick checks rather than precise measurements. Its purpose is to identify the general pitch of a thread, not to guarantee exact dimensions or legal accuracy.
**Where Are Thread Templates Used?**
Thread templates are ideal for situations where high precision isn’t required. They’re perfect for DIY projects, repairs, or when working on the go. They offer a fast alternative to manual measuring, which can be time-consuming and requires additional tools.
However, they aren’t suitable for determining the exact gauge or dimensions of a thread with legal certainty. For that, more advanced tools like micrometers or thread gauges are needed.
Still, if you need to replace a screw and can't remember the exact size, a thread template is a convenient and effective solution.
Once you’ve identified the thread pitch using a template, you can easily find the right threading tools at the BAER online store. Our team is always ready to help with any questions you may have about tapping or threading.