Single-thread-engaging nuts are formed by stamping a thread-engaging impression in a flat piece of metal. They are used for lighter-duty applications than multiple-thread nuts of the same size. These ...

These nuts are squeezed into round, punched or drilled holes in sheet metal between a parallel punch and flat anvil. The nut is flush or less on the back side. No special hole preparation or tooling ...

What do the small lines or numbers stamped on a bolt actually mean, and why do they matter? In an article featured on ...