I managed to hit something with the centre fin on a thruster setup. The box is slot a box. There was no (minimal) damage to box itself, but all the plastic around the front screw is pretty much useless. I can't just push a bigger screw through it as anything screw grips onto basically just comes out in shreds. It does look like it is just plastic and I have not damaged the box. Are the screw holes part of the box meaning the whole box needs to be replaced or is there any easier way to fix this? Can I just put a new plug in the hole?