Along with the pitch, or number of threads per unit length, thread friction contributes to the self-locking, or “non-overhauling” property of most screw threads.

Screw Box for Wooden Threads Season 27 Episode 4 | 26m 46s | CC Down and dirty metalworking forges the cutters to make wooden screws. 09/21/2007 | Rating NR ...

Often metal inserts with threads are added to FDM 3D prints by melting them into the plastic, but might 3D printed threads be sufficient for many cases?

Woodworking screws are actually quite the varied microcosm, with a massive number of combinations of heads, drives, threads, points, and materials.

In this video, a welding technique for creating lathe knives for deep threading is revealed, perfect for making threads ...

Tapping screws form mating threads in materials they are driven into. There are two basic types: thread forming and thread cutting.

The study, led by Professor John Gardner of Anglia Ruskin University (ARU), reveals that the Crystal Palace was the first building known to have made use of a standard screw thread—something ...

Tapping Tapping has been defined as: A process for producing internal threads using a tool (tap) that has teeth on its periphery to cut threads in a predrilled hole. A combined rotary and axial ...

Exterior tube returns create noise, slow the balls down, and cause jams. They are also a source of lubrication leaks. Internal returns solve all these problems and much more.

A woman from Colombia claimed that she had a needle and thread stuck inside of her for over a decade, bringing her many years of agony.