Gigabyte C200 case has screw has a missing rubber around it is that safe for the glass? I have been overthinking about it and it annoys me. The screw thumbscrew is with me its not missing but the rubber around the screw house/hole (that the glass rests on from the top right spot as you can see) is missing. Is that a big deal? Here is a picture : https://ibb.co/6smrGpc