64 Imperial auto pilot weight creating larger holes in fender!!!

Hey everyone, my car didn't come with auto pilot, so I purchased all the parts I needed and installed it. Everything went together and it all worked and seemed fine.

Well I realized that the auto pilot seemed loose when I bumped it the other day and realized that the bolt hole were now larger!

Did auto pilot have any reinforcement In the fender? Or how was it placed through it?

Thank you in advance!
Author: 64Imperial