This is a remix of Dpruim's SMA Thumb Screw. It's a really cool idea and helps with getting the SMA connectors sung. I remixed the original model with a slight increase in scale (with the flat to flat dimensions on the SMA connector sized to 8.2mm on this model. It is also slightly taller. The primary change is the design of the bumps on the sides, which have been changed to a more roundy, cylindrical shape, from the more gear like bumps on the original.
If these print too tight, then I'd suggest measuring the flat to flat distance on the inside pocket for the connector and adjusting the scaling factor from there (the model is 8.2mm flat to flat). With something this small, even with a well calibrated printer, you may need to add some scaling to get it to fit.
I printed this in 0.1mm resolution.