We have all done it, overtightened a bolt and blown out the threads. When a bolt starts to tighten up and then go suddenly loose, you know that the threads are toast and now you have a problem.

When people are designing lightweight products, or repairing a worn-out thread, a dependable fastening tool can make a big difference. This is where self tapping threaded inserts can come into play.

You might not know what a threaded insert is, but chances are you’ve seen one before. Threaded inserts are small metal (typically brass) inserts that are pressed into plastic to give a strong point of ...

This article was updated May 25, 2023. It was originally published Nov. 17, 2009. To put hard, durable threaded holes in plastics, engineers often specify threaded metal inserts that will securely ...

Designed for applications involving plastics, the DeltaForm threaded inserts offer an economic alternative to traditional metal inserts and better torque-out strength than thread-forming screws. Made ...