The E-Z Lok (Solid Wall) threaded inserts are for metal and come in assortment and installation kits. E-Z Lok inserts repair or reinforce threaded holes in soft metals such as aluminum, magnesium, and ...
Inserts are classified as two general types: those held in place by external threads and those that use some means other than threads (knurls, grooves, interference fit) for their holding power.