Their great flexibility in terms of processing and component design leads to an increasing replacement of metallic materials by plastics. Due to their outstanding mechanical properties, low weight and attractive manufacturing costs, they are a fundamental part of industry today.
AMTEC thread inserts make it possible to achieve the advantageous synergy effects resulting from high-strength metals in combination with plastics. They have been specifically designed for after moulding installation. The result: a wear-free, high-strength thread in high-quality plastic components.
The thread insert is heated to the melting temperature of the plastic. As a result of the heat transfer upon insertion, the plastic is plasticised for a short time and flows into the undercut of the thread insert. Upon cooling, a low-stress interference is realised. Böllhoff has extended this innovative product family by a new variant: the HITSERT Screwlock.
This is a situation everyone knows: when under load, screw fixings tend to loosen under load through vibration, alternating load or general kinetic energy being absorbed. In many applications it is absolutely necessary to take precautions against unintentional loosening. As a specialist in fastening and assembly technology, Böllhoff offers HITSERT Screwlock for those applications. An efficient combination of two fasteners.
The HITSERT Screwlock combines the advantages of an aluminium (EN AW 6061) HITSERT 2 and a stainless steel HELICOIL Screwlock thread insert. These two elements match perfectly to provide considerable benefits for screwed connections with high requirements. Locking of the screw is achieved with a polygonal-shaped thread of the HELICOIL Screwlock. These threads have a locking effect on the flanks of the screw or bolt to be screwed in. The result is an elastically resilient frictional locking mechanism with the bolt or screw resisting self-loosening and unscrewing.
Depending on the specific application, increased clamping torques can be achieved with several polygonal-shaped threads. The resulting clamping torques can be compared to the specifications in the list of standards DIN 267, Part 15, ISO 2320 or adapted to individual application.
