Furthermore, there are extra screws like:

I don't know what the washers are for but the black long screw is used for mounting the water cooling fans to the top. In this unit all 8 screws are present so this is a mistake that happened during the assembly. All in all I'm not impressed by the quality of what Ciaratech delivered...
Obviously, as I suspected months ago, Ciarra has indeed a very special way to handle screws - they just throw them in the box.
Why would Ciarra make HF, their principal, sign a NDA? Because they have a very special and arcane way to drill in screws? Bullshit everywhere.