Originally Posted by
garethzbarker
I had some peals installed at my lbs yesterday. i left a can of anti-seize next to the bike and when i got back the apprentice (this guy is my bane) had put them on without using it. I told him I was wanting to brush some on and he told me it was a bad idea b/c it wasn't needed and it would make cleaning my bike harder (i don't know what he meant by that. Anyway, i use these guys a lot and they give me a discount on everything so I just let it go; but this guy is full of **** right? I know I've seen pedals stuck on cranks before.
Edit: he also advised against a light layer of grease on my bottlecage screws saying they might work themselves out. That idea made a little sense though.
The main purpose of grease on threads is to allow you to undo them later on. It won't cause them not to tighten enough to do their job. It's fine to use on bottlecage screws - in fact probably more important there than some other places - you don't want to have a bolt stuck in your frame, because replacing the frame isn't an option, and nor would it be fun trying to twist out or drill out a broken off bolt thread.
The only place where I've seen thread locking fluid e.g. loctite recommended to be used are where the threads/bolts can't be tighted enough without the risk of stripping the thread in the nut. Jockey wheel axel bolts in the rear derailleur are an example.