Insert nut

An insert nut provides a threaded socket for a wooden workpiece, similar to a wall anchor.

In both cases, the external protrusions bite into the wood, preventing the nut from either turning or pulling out.

They are threaded internally and externally, the former provides stability for the bolt and the latter provides grip to the object.

Screw-in insert nuts have an external thread and hex head and are screwed in with a Flat Blade Screwdriver or an Allen wrench.

They are designed to work in wood and particle board.