I tried one, and it didn't work. The torque was too much and the nut canted out of the hole and expanded in the wrong place. Somehow, the friction is occurring in the wrong place. I'm sure this idea works under ideal circumstances. There were some other videos of more complicated designs that pulled straight on the stud without relying on the rivet nut threads. Maybe these will work better. One example is the one by "Artisan Makes". When I watched the videos, often playing annoying music, I thought the failure mode would be due to the rivet nut spinning, but it locked perfectly. Once the nut starts expanding it must be flush, else it will be pushed out of the hole. The videos didn't state that. Just music.