Originally Posted by
terrymorse
Untrue. Bolts come loose because of faulty design or improper installation.
A properly designed and installed fastener will not come loose under intended use.
I used to design space equipment that was subjected to a shake test. A loose fastener was a failure.
You're kidding, right? It's a bottle cage bolt, not aerospace equipment. Road vibration can (and does) cause bolts to come loose over time. General stress from regular use is also a contributing factor.
If you're comment is actually intended to be taken seriously, am I to assume you never tighten any bolts on your bike(s) for any reason other than faulty design or improper installation? Good luck with that.