Did I make a mistake with my Nautilus 805?

One of the things that came to my mind yesterday was how tight were the woofer screws of my N805. I noticed that the screws were very slightly "loose" so I decided to tighten them all the way down. Now I am worried as to if I made a mistake by doing this and if the sound can be affected. Subjetively I did not find any diference in sound after this, but I was wondering if B&W intentionally leaves the screws a tad loose for some purpose? What do you guys think? Thanks for your thoughts.