Raspberry Pi case to camera mount adapter

This is a small adapter part to join together two other cool parts for Raspberry Pi boards and cameras:
My favorite case, designed by 0110-M-P: https://www.thingiverse.com/thing:922740
And a Pi camera arm mount designed by altrome: https://www.thingiverse.com/thing:547506
altrome's mount was designed to fit into the ethernet port, I wanted to mount to the case instead, to free up the port, so I made an adapter to join these two things.
the pivot through holes are sized so that #4-40 bolts self tap, this should also be true of 3mm but I haven't verified this.

Edit:
I have since created another simple adapter to enable the assembly above to be mounted on a tripod: https://www.thingiverse.com/thing:3963789
It is affixed using the VESA mounting designed into 0110-M-P's case.