I replaced my hard oil lines a year ago. Recently I removed the hard oil line brackets. Just now as I'm trying to remount the brackets, the factory bolt will not securely fasten into the bracket welded onto the car (sorry, I don't know the technical words).
However, if I use a different (non-factory) bolt, it will securely thread into the mount.
What happened?!
What should I do from here? Any solution that doesn't require me to remove the hard oil lines from the car is preferable.
Thanks for your help.