Join Date: Jan 2009
Location: Canadian in Cambridge, MA
Re: Stuck locking stud
Glad to hear it, I was going to say heat is your friend for stuck threads!!!! Prolly some rust/laquer/crap in there, and heat usually fixes it.
My immediate feeling is the hot water on bottle top method doesn't necessarily expand the steel bottle top much, more like it softens the rubber gasket and softens any sugar/food/goo that's dried in the threads. I should look up the coefficient of expansion for steel, though.