Mr. Bill wrote:
>zxcvbob wrote:
>
>>I would use castor oil. It's kind of thick so it shouldn't run, and
>>it's a very good lubricant -- extreme pressure in fact.

WD-40 is not a lubricant, it's a protectorant, inhibits and loosens
rust. Never use WD-40 in locks, it'll gum up the works.