Bests & Worsts Reviews from Amazon

Im building my first ever PC and mid way through after I have the motherboard and everything in, one of the balancing legs fell off!! After further inspection I realize that the hole the screw was supposed to be in didn't have any actual "holder lines" (lacking proper terms that's what I'm going with). Im happy it happened during the building phase and not when I had it set up so it could take down my monitor and everything with it, if it fell. All in all very poor quality control and I'm not sure how to fix this issue. Maybe super glue?