Coming from Klinik RC is a M3 thread repair kit for stripped out M3 threads. The kit includes inserts machined out of brass that are inserted in the drilled-out thread and that expand when the screw is installed. The knurls grab tight onto plastic and increases strength two to three times over plain screw threaded directly into the plastic. A dab of CA upon installation secures them even further. The set includes ten inserts and a 5/32 drill bit.