The problem is you cant remove it as if you try and cut a slot into it it will cut the motor as the screw doesnt sit flush it is about half a mm deaper so cutting a deep enough slot if going to be very very difficult without damaging the motor.
Also i spend 75 quid on a motor you exspect it to have no problems and quality control should have picked it up.
I think im going to ring microtech and ask to speak to the manager
A