Not like a helicoil. These are the threaded inserts you hammer into a hole drilled in a piece of wood so you can thread in a bolt from the opposite side.
I want to mount a couple of items to a workbench and don't want to have to tighten a nut from underneath.
What are they called (properly)?
I want to mount a couple of items to a workbench and don't want to have to tighten a nut from underneath.
What are they called (properly)?