Review on Uxcell Brass Knurled Threaded Insert Nuts 100PCS - M3 x 3 mm Female Thread (Pack of 100) by Michael Colley

Added PETG printing. Have used 32 so far and all 32 threaded well and looked good. I screwed up a bit with the first one, didn't realize they heat up so quickly but it's still good. I don't know why everyone is complaining about the wrong threads and needing to be cut. I suspect this is the method to install them. I used a 30mm M3 screw to mount it. Screw it onto the top of the screw, heat it up, stick it into the plastic and hold it there until it cools, then just unscrew the screw and do the next one.