What is the function of a thread gauge?

The function of a thread gauge is to determine the number of threads per inch on a screw or bolt. This measurement is crucial for ensuring that the fasteners will fit together properly, especially when dealing with nuts and other components that require a precise fit.

Thread gauges come in various forms, with some designed specifically for measuring external threads (like bolts) while others are meant for internal threads (like nuts). By using this tool, you can easily identify the pitch of the threads, which is the distance between the peaks of adjacent threads. This is particularly important in applications where the correct size and fit of fasteners are essential for mechanical performance and safety.

While measuring the thickness of wires, the depth of holes, or dimensions of curves are important tasks in various mechanical and construction settings, they are not the specific functions associated with a thread gauge. Each of these tasks requires different types of measuring tools, such as calipers for thickness, depth gauges for hole measurement, or contour gauges for curves, further distinguishing the specialized role of a thread gauge.