Abstract: A fastening element is provided for connecting mechanical parts to one another. The fastening element includes integrated, cutting machining grooves which are designed to work the edges of the hole, during fixing of the fastening element, by the removal of material in the parts to be mutually connected, so that the hole is made to fit against the shell surface of the fastening element. A fastening element can be provided which, in a cheap and simple manner, is designed to absorb both occurring shearing loads and compression/traction loads between the connected parts.