Rapid installation screw with radially expanding threads

A screw for fitting into a screw hole, comprising:

• a screwhead comprising:
• a body having a first surface and a second surface opposed to the first surface, and
• a central slot, formed in the first surface of the body, configured to receive a screwdriver;
• a plurality of thread segments comprising threads;
• and
• an internal shaft fixedly attached to the second surface of the screwhead, the plurality of thread segments and internal shaft together occupying an extended position where the plurality of thread segments are affixed at a distal end of the internal shaft, and the plurality of threads configured to occupy a compacted position where the plurality of thread segments overlap the internal shaft upon an axial force on the internal shaft disconnecting the plurality of thread segments from the internal shaft, the plurality of thread segments configured to move axially into the screw hole without need of rotation when in the extended position, and the plurality of thread segments configured to rotate out of the screw hole upon insertion of the screwdriver within the central slot and rotation of the screwdriver to rotate the screwhead and internal shaft, the internal shaft in turn rotating the thread segments against a wall of the screw hole when in the compacted position;
• wherein the internal shaft comprises a plurality of ribs extending radially from the internal shaft, each of the plurality of ribs positioning between adjacent thread segments of the plurality of thread segments when the internal shaft and plurality of thread segments are in the compacted position.