This 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.
However, during all those years, the heart of the functionality has remained unchanged. Then, as now, the thread insert has been creating high-strength joints in low-strength materials such as aluminium, magnesium and fibre-reinforced plastics like carbon fibre composites by transferring forces from flank to flank into the holding thread.
For increased quality and value – whether for thread reinforcement or repair. The special thread start, which has been adapted from the HELICOIL® Plus, allows to position it like a screw and screw it in.
Driving innovation
To screw in the thread insert, all you need is the Smart installation mandrel: a mandrel with two functions – 2 in 1. 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. This enables an easy and quick installation in one single process step, whether manually or fully automated.
Böllhoff never loses economic efficiency out of sight so that also the pneumatic installation tools are constantly being further developed. The solutions of the most recent generation convince through high flexibility and fast and reliable processing (M4 to M12).
Combined with the respective installation tools, the current innovation stage in the HELICOIL® technology is a perfect addition to the HELICOIL® product family. Like all stages of the HELICOIL® evolution, the Smart system is also highly reliable.
Taking a look back
65 years ago, Böllhoff started producing the HELICOIL® which, like no other, substantially influenced the rise of the family business. Today, the product brand is world-famous and the market leader in thread inserts in the US, Latin America and Europe. A stainless steel thread insert has been conquering the world and still is. For 65 years, it has been an original like no other.
Radial engines for aircrafts made from grey cast iron showed high wear on screw joints. Those engines, already back in 1938, had been the incentive to develop the thread reinforcements which were patented as HELICOIL®. From 1954, Böllhoff produced the HELICOIL® thread insert under license. A step with many others to follow in that same direction, since in 1954 the family business set up their own production. Until then, the company had only been involved in the wholesale trade.
Global and local
The Böllhoff network consisting of 45 companies at 39 locations in 24 countries guarantees local expertise. Böllhoff customers expect global presence in combination with short lead times and distances. That is why the Böllhoff Group looks after the international customers in important industry markets in close partnerships with representatives and merchants. As a leading international company in the fastening and assembly technology, the Böllhoff Group is therefore represented in all important markets.
