Helicoil is a brand-name for a thread replacement system, that bores out a stripped mounting hole and lines the inside with a steel replacement thread that looks like a spring. Every thread requires a tap unique to the thread size and pitch being installed, so they often come in a set of tools suitable for a specific thread wise and pitch.

There is no tag wiki for this tag … yet!

Tag wikis help introduce newcomers to the tag. They contain an overview of the topic defined by the tag, along with guidelines on its usage.

All registered users may propose new tag wikis.

(Note that if you have less than 4000 reputation, your tag wiki will be peer reviewed before it is published.)