It seems we've mastered every part of the car-building process. When our engines wore out, we bought a book and rebuilt them. When the body shop gave us our first estimate, we learned how to paint. We ...

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 ...

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 ...