Thread taps are an essential part of any mechanic’s toolbox-- mostly because, well, you will ruin some threads. Or, as is the case for YouTube user This Old Tony, you’re fabricating parts from scratch ...

Tapping screws form mating threads in materials they are driven into. There are two basic types: thread forming and thread cutting. The thread-forming screw displaced material around the pilot hole so ...

The strength of some internal threads is more sensitive to tap diameter than previously thought. • Cold-formed threads are no stronger than cut threads when holes are correctly sized. • Cut threads ...