HeliCoil

The HELICOIL® thread reinforcement principle was developed and patented in the USA as early as 1938. In 1954, Josef Böllhoff acquired a licence for the production and sale of HELICOIL® thread inserts for the Böllhoff Group. Having been operating exclusively as a wholesaler until then, Böllhoff now entered the production of fasteners for the very first time. In the following 67 years, the HELICOIL® thread insert contributed to Böllhoff's success like no other product. 

The functionality of the HELICOIL® thread insert has remained unchanged over the past decades. It creates high-strength fastenings in materials with low shear strength such as aluminium, magnesium or fibre-reinforced plastics. HELICOIL® is therefore predestined for lightweight construction and is used in almost all industries today, e.g. in the automotive and aerospace sectors or in mechanical engineering. Since 1954, Böllhoff has continuously optimised the design and variety of the thread insert and the corresponding assembly systems and tailored them to demanding applications.