i have modified the peg for the retractable camera mount in this STL

https://www.thingiverse.com/thing:4408659

i split it up for easier support free printing. also added a hole for a M3x14 or M3x16 screw
also made the peg less fragile by making it slightly thicker.

hopefully this helps someone.

printed at 50% infill and 5 perimeters for added strength.