Thread Plug Gage

Thread plug gauges are precision measuring tools used to inspect the internal threads of a threaded hole. They are commonly used in industries such as manufacturing, automotive, and aerospace to ensure the accuracy and quality of threaded components.

Thread plug gauges consist of a cylindrical body with a threaded section on one end. The threaded section is designed to match the specifications of the internal threads being inspected. The other end of the gauge usually has a handle or a means of gripping for easy handling.

To use a thread plug gauge, it is inserted into the threaded hole being inspected. If the gauge fits smoothly and completely into the hole, it indicates that the threads are within the acceptable tolerance range. If the gauge does not fit or fits loosely, it indicates that the threads are either too small or too large, respectively.

Thread plug gauges are available in various sizes and thread types to accommodate different applications. They are typically made from high-quality materials such as hardened steel to ensure durability and accuracy. It is important to regularly calibrate and maintain thread plug gauges to ensure their accuracy and reliability.

In summary, thread plug gauges are essential tools in the field of precision measurement and quality control. They are used to inspect the internal threads of threaded holes and ensure that they meet the required specifications.