I am not saying this to brag, but I have been an ASE Master Certified tech for 15 years. I am well aware of how tight a bolt needs to be. It is very difficult to get anything, but a wrench in there to tighten these bolts. They seem to work loose on the track even after tightening them up? Look on SRTForums and Neons.org. There are people talking about it.

I believe that a fastener that is drilled for safety wire may be the only solution?