360 ball to 3 prong camera mount

I have a universal dollar store tripod for phones and other standard cameras with the M6screw. I needed a way to connect my DJI action cam to it.

Standard 3 prong action camera connection, all that is required is an M4 nut.
The dollar store tripod uses a 12.5mm swivel ball receiver.
I created a 12.5mm sphere with a 6.5mm cylinder attached to it with 3mm of extension clearance and then the standard 3 prong action camera mount. (Maximum thickness on cylinder for strength with swivel clearance)