The screws are marketed to institutions like hospitals and prisons so apparently only poor quality vandals there.
So what is your choice of anti vandal screw?
Some sort of 1 way screw. They can still be removed but it is slow and/or noisy.
You would probably damage the plate doing during maintenance but those tend not to be that expensive.
I'm not aware of anyone making M3.5 machine screws with a one way head though.
@Mr_Sworld started
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The screws are marketed to institutions like hospitals and prisons so apparently only poor quality vandals there.