Review on 🔩 CNBTR 20 Series T Nuts: Premium Aluminum Slot Fastener Nut with M4 Thread - Pack of 50 by Jose Wititsuwannakul

Twist and lock pretty well. I've seen other people (on 3D printer forums) complaining about their t-nuts being so painful and how much work they have to do to fix them, and I don't know if other t-nuts are any different are. or if I'm just something special. Rounded corners on two corners ensure they rotate perfectly almost every time. Every once in a while I'll get a pull for some reason and it will take a few tries before it rotates and locks properly, but I'm guessing it's about 5% or maybe even less of the time. .