Box Grid Antenna mount

I needed a standoff mount for a SMA connector for a meshtastic node mounted in a waterproof electrical box with those 2.5mm spaced grids in it. Holes are 3mm and spaced for grid holes, so should take 2.5mm screws. SMA hole is keyed so your connector will slide in place and not rotate when you tighten the nut.

Recommend you mount this to the grid first, then attach the SMA connector.

I have been able to print without supports every time if the SMA is printed on the bed.

Available in two versions because the 4mm is a bit tough to work with but very strong for heavier antennas, so I rigged up a 3mm version which actually might be best for most applications.