Hilti Aktiengesellschaft

Michael Splitt

Marc Schaeffer

Juergen Gebhard

Simon Oppeneiger

Georg Oberndorfer

A fastening element has a shaft (), and a tapping thread () carried by the shaft () and having at least one screw thread () a section () of which that adjoins the thread pilot (), having a plurality of following one another thread steps () having different cross-sections, with a cross-section of the at least one screw thread () decreasing stepwise toward the thread pilot () from a thread step () to a thread step (), with the thread steps () having respective cutting edge-forming end surfaces () aligned, at least partially, in a direction of the thread pilot ().

Growing community of inventors

Munich, Germany

Michael Splitt