EGM thread

What is an EGM thread?

An EGM thread is a special metric thread type, also known as a Helicoil thread. This thread profile is specifically designed for use with thread inserts such as Helicoil wire inserts. The EGM thread makes it possible to repair worn or damaged threads and increases the durability and reliability of the threaded connection.

EGM thread characteristics

EGM threads have precisely defined dimensions and tolerances that differ from standard metric threads. This special sizing ensures a precise fit for thread inserts and guarantees the strength of the connection. EGM threads are often used when the original thread is damaged or when an especially durable threaded connection is required.

Use of EGM threads in the machine shop industry

In machine shops and machining facilities, EGM threads are widely used for installing thread inserts. This method allows for repairing worn threads without needing to replace the entire component. In addition, EGM threads improve the durability of threaded connections in soft materials such as aluminum, which is particularly beneficial for machinists.

EGM taps and their features

Special thread taps are used for producing EGM threads. For example, Dormer E620 series straight flute taps are designed for EGM threads and made from high-speed steel (HSS). These taps are suitable for threading both blind and through holes in a variety of steels. On the other hand, the Dormer E621 series taps, which have 40° spiral flutes, are specifically designed for blind hole threading in structural steels and carbon steels.

Summary

The EGM thread is a special metric thread type that allows the use of thread inserts for repairing and reinforcing threaded connections. In the machine shop industry, EGM threads are important tools that improve joint durability and enable efficient repair solutions.