The need for a screw with threads shaped to mate with the substance it is penetrating has always been out there.

FORBES: The Taming of the Screw

If only he could wrap teensy chisel tips into the threads of a screw, it could chip its way into a tight seat instead of compressing and cracking the concrete.

FORBES: Magazine Article

Henceforth someone trying to build an engine could pluck a standard 8-gauge, 32-threads-per-inch machine screw off the shelf.

FORBES: Architect of Life

Plastic creeps away from the pressure, sliding down the threads so that even a tightened screw loosens almost instantly.

FORBES: Magazine Article

LeVey considered stamping screws instead, but engineers couldn't figure out how to get the threads all the way around the screw, and they couldn't make the screws unscrew.

FORBES: Magazine Article