The screw thread provides a fine adjustment over a short range.

They are made of either soft plastic or metal that expands while gripping screw threads.

The first standard was published in 1921 on metric screw threads.

Threading is the process of creating a screw thread.

More screw threads are produced each year than any other machine element.

This is a defining factor for the shape of a screw thread.

The center of the bit is a tapered screw thread.

The lens mount was the same screw thread as the Pentax.

If an internal screw thread is desired, this is provided in a second step.

In all of these applications, the screw thread has two main functions: