They aren't https://www.rmwx.co.uk/Collection/rm-02/ the toughest screws in the world, and I put a couple of very minor burrs on mine (the provided screw driver's blade is not quite thick https://www.rmwx.co.uk/Collection/rm-25/ enough to lock in place https://www.apwx.co.uk in the slot), but I don't care at all about this.