What is... a thread protection sleeve?

Self-drilling screws with conventional cutting bit are tapered. Our EJOFAST screws are even significantly sharper. This causes a risk of injury for people. For cable ducts that have been secured with self-tapping screws, there is a risk that power cables could be damaged by the tapered screws.

The remedy is provided by our thread protection sleeves, which are simply pushed onto the screw points. Michael Hellwig shows how this is done.

This is how the thread protection sleeves work:

Schraube mit Gewindeschutzkappe