Monitor VESA mount hook

Monitor VESA mount I have designed to hook onto a metal bar I bent to shape to hold 3 monitors.

This was a lockdown working from home improvement project and was my first attempt at designing in 3d. Trying to maximize the space on my desk and wanting to get rid of the bulky monitor stands I decided to 3d print mounts so that the monitors can be hooked on, rather than buying a stand for 3 27" monitors which can be very pricy.

The design is pretty basic. It hooks onto a 25mm metal bar I had lying about that's been bent to shape and mounted to a stand made from plywood and a metal table leg mounted in the corner of my desk. The mounts fit the standard 100x100 VESA bolt pattern at the back of my 27" dell monitors. The bolt holes are recessed enought to fit a washer and a bolt inside.

For perfect gapless adjustment I made two holes on the sides that fit an m6 nuts underneath and the correct angle can be achieved my inserting bolts from the top.

I tried to design this so that it