Thread gauges are the most important ingredients in the industry

Nuts, bolts, and screws are the most important ingredients in any manufacturing industry. Even in this era of automation, you need these implements to fix the various parts of...
Nuts, bolts, and screws are the most important ingredients in any manufacturing industry. Even in this era of automation, you need these implements to fix the various parts of any equipment. It could be the simplest of toys or the most sophisticated missiles. The screws, nuts, and bolts have great importance. Imagine what will happen if one screw becomes loose and falls off from an airplane while in flight. It can put the lives of hundreds of people in danger. Choosing the screw with the right pitch is important. This is where the thread gauges come into the equation.
Thread gauges come in two types, the thread ring gauges and thread plug gauges. Both these tools have their individual importance. Let us see both of these tools in brief.
Measuring the pitch of the screws, nuts, and bolts is important. Note that these are different kinds of appliances, some with external threads and some with internal. Any student of basic engineering will tell you they the screw should fit perfectly into the hole. This requires perfect compatibility. Hence, the pitch of the screws and sockets should be perfect. The thread gauges help you in this regard.
The thread ring gauges are the tools to determine the pitch of the external threads. These gauges have two sides, the Go side and the No Go side. As the name suggests, the screw or the nuts should go through the Go side without much of assistance. At the same time, they should not go more than two turns through the No Go side. It is imperative that every screw and nut passes this test before being certified fit for use in the industry.
The thread plug gauges have the same role to perform, but they cater to the internal threaded instruments like the bolts and sockets. The principle is the same as far as the Go and No Go rules are concerned. The plug gauge should easily fit into the bolts through the Go Side. Similarly, they should not go more than two turns when you use the No Go side. Once the implements satisfy this condition, they are fit for use.
There are various types of threads in use in the industry. Hence, you need different types of gauges to determine the pitch of each type of thread. Different countries have different methods of measurement. Take the example of US and Canadian industries. These industries follow the Imperial system of measurement while the European and other nations in the world adopt the metric system. These are different systems and hence you need different types of thread gauges to determine the pitch and tolerance levels.
The ring gauges and plug gauges are precision tools as it is imperative for the screws, nuts, and bolts to pass the Go and the No Go test. We shall look at the different types of threads in the following articles. Each of these threads has its importance in the industry. We shall also look at the different types of gauges you need in this regard.
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Gadgets And Gizmos
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