Separate screw thread helix fixed by means of claws

A screw comprising:

• a shank having a tip end, a rear end located opposite the tip end, and a longitudinal axis extending through the rear end and through the tip end;
• at least one screw thread arranged on the shank to wind around the shank and protrude from the shank;
• a separate helix element arranged non-monolithically on the shank, the separate helix element winding around the shank, protruding from the shank, and constituting at least a section of the at least one screw thread;
• and
• at least one first claw projecting from the shank and having both radial and axial overlap with the separate helix element, the shank and the at least one first claw being monolithic with respect to one another;
• the shank including a helical groove winding around the longitudinal axis, the groove projecting radially into the shank, the separate helix element being arranged in the groove, the groove having a groove subduction in a groove starting section closer to the tip end than the rear end, the groove subduction being accompanied by a thread subduction of the screw thread in a thread starting section closer to the tip end than the rear end.