M3 press nut designed to press into the material they’re fastening and lock in place, these press nuts are made from high quality materials and precision manufactured for a perfect fit. Common uses include panel mounts, home hardware, tension adjustment hardware, and electrical applications, now more and more used in carbon fiber drone frames, Especially for the fixing of UAV or FPV drone frame, it has a good effect. Our stainless steel press nut will not rust, not easy to corrode, and is strong. Hole diameter needed is 4.55mm.