Review on Highfine SMA Male to RP-SMA Female Coupling Nut Connector Adapter (Pack of 2) - Boost Wi-Fi Signal/ Drone FPV/ Extend Coaxial Coax Cable/ Radio Antenna/ Repeaters/ RF Signal Booster by Joshua Turner

Good quality part but there was no obvious way to tighten it. The nut rotates, and even when tightened from the other end, it still rotates freely, leaving a 1mm gap in a round socket for a ring spanner to fit. I tried with a very small pair of scissors but my panel antenna was still spinning in circles. I could not use this product with my Hubsan H605a drone controller.