Each light bar has its own mount and hang on a M8 screw.
I found and printed the correct screws for my Vesa with this set: https://www.printables.com/model/653654-screw-set-m3-m4-m5-m6-m7-m8-m10-iso-4017
The author remixed this model.
Extended the stand to hang on a screw of a Vesa Mount