Gridfinity Stackable Case for Lora32+3000mAh battery

Was gifted some 3000mAh batteries that don’t fit in most existing cases, so I thought I’d make my own!

https://www.printables.com/model/714487-gridfinity-heltec-lora-v3meshtastic-case-alpha

The one issue I have is… the external connector can strip the plastic and spin. the forces seem to be more than plastic really wants to deal with easily, on such a tiny nut like the one that comes with the Lora32.

I’d love to hear any advice/remixes, at this point I’m kind of thinking the best way might be to just finger tighten the SMA, and to use a right angle jumper with thinner coax for the attachment rather than connecting directly to the heavy cable for my antenna that needs a ton of force to stay put.

Although I suspect the issue might just be me overtightening things.