News – 14.04.2020


The new generation of thread technology for high‑strength joints.


We continue to make product history

The new HELICOIL® Smart is a further quantum leap in the HELICOIL® thread technology. A coil thread insert with tang which does not have to be broken off.

The innovation: The installation mandrel bends it backward during spinning off and then compresses it.
This smart thread insert merges the advantages of the HELICOIL® Plus and the HELICOIL® Tangfree.

This product is made by Böllhoff


Precision at its best

The HELICOIL® Smart thread insert, which is made from a wire with rhombic profile, is also formed into an elastic spiral. As to the Free Running version, thread by thread it is a completely free running coarse thread.
The result is a true‑to‑gauge internal thread including the last thread which is in every case threadable.
It produces high‑strength threads transferring forces from flank to flank into the holding thread.

2 in 1 installation mandrel

To screw in the thread insert, all you need is the Smart installation mandrel of similar size as a tap. Very special is the blade position control. Upon screwing‑in, the blade has a pull‑in function, whereas upon screwing‑out, it turns into a bending and compression tool.


There are many good reasons for using our products.

Strength and options.
Point by point.

  • Provided with a tang, but yet no tang
  • No tang break – no tang removal
  • No risks from tangs left in component
  • Positioning and screwing in like a screw
  • Optimum entry into the holding thread
  • Easy handling
  • Assembly times reduced by approx. 20 %
  • Simplified quality assurance
  • Permits blind holes of minimum depth – ideal for pre‑assembled subassemblies etc.
  • One installation mandrel with two functions – 2 in 1
  • Fastener and installation tool from a single source
  • The installation of the HELICOIL® Smart is fully automatable

Of course, you also benefit from the well-known advantages of the established HELICOIL® thread technology.


Find out more: related downloads.

If you would like to know more, simply download the relevant brochures.

Title Language Version File Download
The new generation of thread technology for high-strength joints
English 10/2019 2870 kB / PDF
English 10/2019 2870 kb / PDF

To view PDF documents, you will need the free Adobe Acrobat Reader.

More information

Would you like to discover more of the World of Joining?

Here you will find information about successful applications and related topics.