The drywall screw has a body that is fully threaded, meaning that its threads will cut into both what you are fastening and ...

Tired of struggling with damaged nuts and screws? This steel hardening technique, rarely taught in schools, reveals how to ...

The basic tapping screws are classified as thread forming and thread cutting. The basic tapping screws are classified as thread forming and thread cutting. Thread-forming tapping screws displace ...

This article was originally published with the title “ Screw-driver Wrench and Tap Wrench ” in Scientific American Magazine Vol. 105 No. 20 (November 1911), p. 433 doi:10.1038 ...

Tapping screws are used in steel, aluminum, die castings, cast iron, forgings, plastics, asbestos, and resin-impregnated plywood. Continue Reading A New Way to Break Down Polystyrene and Clean up ...