Try kroil. We use it all the time on corroded fasteners on aircraft.

http://www.kanolabs.com/

Jon Schaer wrote:

>All,
>
>Any advice or tricks for un-sticking rusted caliper bleed screws? I'm leary
>of heating them much with a propane torch.
>
>Thanksomuch,
>
>Jon Schaer
>Columbus, OH
>1985 GL
>150000+
>
>
>