We will need:
- VKB UCM BRACKET
- GNX module
- Drill
- 2mm drill bit
- 3mm drill bit
- M3 screws
- M3 square nuts
First we remove the cover of the GNX module and put the screws as you can see in the photo.
(Note: the bracket already has the holes because I took the photo after making them

We center the GNX cover on the bracket. We tighten the screws until they touch the bracket.
Now that we have marked the bracket with the position of the screws, we will drill first with the 2mm bit and then with the 3mm bit.
We reassemble the cover on the GNX module and screw the module to the bracket with screws of the correct length. I seem to remember that I used M3x25 for the highest part and M3x20 for the other two holes.
Sorry for my English level.