4 easy steps to use a thread gauge

There are numerous different kinds of thread gauges for measuring different nuts, screws and bolts. A few of the most common ones are thread plug gauges, thread ring gauge, UNC thread gauge, metric thread gauges, NPT thread gauge, UNEF thread gauge and a lot more.

The use of thread gauges have rapidly increased. In industries, laboratories, by electricians and technicians, the thread gauge is now an easy way to determine the diameter and circumference without any adversity and trouble.

The use of thread gauges is extended. Why not discuss the usage, significance and details of the tool to clarify our concept a little more. Read on further to find out.

A brief overview of the thread gauge:

A thread gauge is a recent invention which is primarily used by the electricians, technicians, physicists and also in the laboratories. The main purpose of the gauge is to evaluate the pitch of the screw thread. This time-saving and easy to use device is now being a main tool in industries and laboratories as well mainly because of its accurate and precise results. Here we have out together a few steps which will make it easier for you to use the gauge. Have a look.

Steps to use a thread gauge:

Using a thread gauge isn’t as difficult as it seems. Here are the steps to use a thread gauge which will help you figure out the use easily

1. The first step in the process is to determine and clarify whether the thread is straight or not. The thread will be considered as tapered (when the diameter increases or decreases). In the other case, when the diameter remains the same the thread will be parallel.

The examples of tapered and straight thread are;

Straight thread: BSPP and metric thread gauge

Tapered thread: BSPT and NPT thread gauge

2. The next step is to measure the diameter of the thread. This can be done by using a caliper which easily determines the diameter and measures it on the thread tops. There can be two cases which are:

In case you are measuring a tapered thread, make sure you measure it on a 4th or 5th full thread. And for a straight thread, evaluate it on the full-thread corridor.

3. Now, we need to determine and evaluate the TPI, which is short for threads per inch. In case of a metric thread it is called a pitch. A Teesing thread gauge is used to evaluate the TPI, which is typically measured in millimeters.

4. Now evaluate the thread standard with the help of the parameters you got from the initial steps which will help your find the most idea thread on the table. You’ll obtain the following information:

• Straight or tapered thread
• Male of female
• The diameter
• TPI or the pitch

In case the diameter and the pitch are not equal and aren’t matching then thread standard might be different (in some cases it may be NPT).

By following each step as it is, you can easily measure the pitch of the screw thread without any hassle. To know more about screw gauges, stay tuned for more informative articles.

Contact :

Chenchuan Tools Co.,LTD
Chenbei Industry Zone,
Longgang Road,
Huangshi,Hubei
China,435202
Tel: 0714-7321211
Fax: 0714-7321210