region of the ring like contact surface 12 and at the rivet section 16 with the features providing security against rotation being formed here by noses which are present in raised form at the contact surface 12 and at the rivet section 16 in the region of the transition from the contact surface into the rivet section 16 the noses providing security against rotation shown here are provided with side flanks 30 and 32 which lie in planes extending in the longitudinal direction of the element the noses providing security against rotation are made with sharp edges at 34 and 36 in fig1 and 4 and could instead be provided here with rounded edges the noses providing security against rotation could also be realized by recesses in the contact surface or in the rivet section the possibility also exists of giving the jacket surface 36 of the head part 14 a polygonal or grooved shape the hollow fastener element has a smoothed cylindrical bore which is disposed coaxial to the longitudinal axis 11 of the fastener element and in this example is partly present in the guide section 18 the diameter of the smooth cylindrical bore is so dimensioned that by turning in a thread cutting or thread forming screw such as is for example explained in more detail with reference to fig1 a thread of the desired size arises for an m8 thread the diameter of 7 55 is for example selected for a thread forming screw for thread cutting screws the.