Brass Flanged Expanding Inserts for Plastic - Reversed for Through Hole - M4 - 10 Pack In stock
The flange keeps these inserts from pulling through a hole. Install on the underside of the material by pressing them into a hole. Install a screw to expand the insert and drive the knurls into the surrounding plastic to keep it from pulling out. Made from brass, they’re nonmagnetic, corrosion resistant, and electrically conductive.
See chart for insert dimensions.