Any idea on how to unscrew/disassemble this?
>>969559
from the other side
>>969561
From the other side it looks like this
Not sure if the outside area of that bolt is plastic have you tried using a bit of heat
>>969565
Looks like it could be a rivet, in which you would have to drill it out and re revit it when you are dont
Looks like a rivet, but the hex shaped nut makes me think it's still got thread.
>>969575
If the black piece is plastic, the hex nut could only be there only for support.
The hex nut embedded in the plastic for structural strength with a rubber covered rivet through the middle.
>>969565
Thats a rivet, son. You drill them out then pop a new one in to put it back. That looks like you tried to cut a slot for a phillips. Its not a screw. It wont work that way.
>>969559
drill
drill out from the other side