It is just a type of threaded insert. There's two kinds: one particular is made to kind a bulge within the back again aspect of the panel like a screw is tightened in its threads. The opposite is in the same way drawn in employing a screw, but is drawn https://car-filters30739.ampedpages.com/the-smart-trick-of-fasteners-for-wood-that-no-one-is-discussing-54286631