A fixation component for a bone-supporting component of a bone implant, comprising a body including a core, and a head portion. A distal end of the component comprises an insert formed of a hard material, which covers a portion of the distal end, and acts a thread cutting tool. In some embodiments, the insert comprises a planar portion abutting against a material of the fixation component. In some embodiments, the fixation component is a screw, and the insert covers at least a portion of a cutting edge of the screw.