Another closeup, very blured, but useful to see how it's build:
The two first nuts are tightened one against the other to prevent the rotation of the rod. The last one is used to draw aside the whole thing.

I used M12 rodes, but won't use those again. They are just too small, I am considering using at least M20 in the futur. A M12 on 5 cm is very fragile and will eventually buckle under the load. Thicker rods will also give a better length adaptiveness of the console. This one is only usable between two walls that are at aminimum distance of 95 cm and a maximum distance of 98 cm.