If something's loose inside then why not take all the screws out, open the box, and take the loose piece out?
Hm, probably I didn't explain it clearly enough. I cannot remove anything without cutting the screw somehow. The screw doesn't turn in whatever it is screwed into. That whatever is inside the MFC. Even if I disassemble it and manage to hold this "nut" tightly with something, the Phillips head on the screw will not allow me to apply sufficient force to unscrew it. This screw was totally screwed up during assembly at the factory. And I don't have the tools necessary to cut screws. So I left it as is for the time being. If I change my pedalboard to something where I use Velcro, I'll need to take care of this somehow.
In addition to that, with evidence of assembly line sloppiness and bad design, I really don't feel like touching any additional screws unless I absolutely have to. Also, if I disassemble it, I'll lose my warranty.
As for the screw threaded into the casing. I think that it's not done this way. It's threaded into a nut that is most probably spot welded on the internal side of the casing. That spot welding isn't very tough, and it just gave when I tried to remove that screw.
Basically, my message to the OP is - if the screws turn easily, fine. If not, be very careful as even moderate force can break the thing the screw is threaded into.
To Fractal I'd say that these damned legs should be made to be removed easier than this, and there shouldn't be any electronics where the screws enter the casing. Obviously a lot of people need to mount their controllers on various pedalboards, and the design should be friendlier for these scenarios.
