Will my Xbox work without 2 screws.

Hi. I took apart my Xbox a while back but then I had to wait for some stuff and it never came. I then forgot about reassembling it until today. (none of the internal components were removed or damaged at all)

I realised however that I am missing 2 silver screws, C5 and B1 respectively. I was just wondering if my Xbox will still work with no performance issues without these screws. I don't exactly want to pay money and wait longer to replace 2 screws right now if it isn't too important.