I have a feeling that the reason it worked is viscosity or molecular size,
and chemistry. Something 'active' enough to cut through the surface 'crust'
and small enough to get down under the oxidation in the threads.

By the same token, I wonder. . . if a VERY SMALL hole {maybe a 1/32}were
drilled at an angle, right next to the bolt so it just touches the threads.
Would this act as a 'tunnel' or 'entry way for something like the KROIL,
etc. ??

One thing to keep in mind . . . to prevent this from happening again, use
LANOLIN on the threads during assembly. Get a tube of it at your local
pharmacy. You only need the tiniest amount, and it's so thick {'heavy'
??}you won't believe it will ever come out of the tube, no matter how hard
you squeeze.

Regards & Good Luck,
Ron Magen
Backyard Boatshop

"Kevin Brooker" wrote in message
...
When I rebuilt my airplane there was a bunch of galvanic corrosion
between the Al and steel parts, bolts, etc. The magic pill was
Absorbene Jr. or some sort of liquid horse linament. I dabbed the
stuff on twice each day and after a week the frozen parts came out
with little fighting. Good luck.


On Wed, 19 Apr 2006 07:50:49 GMT, ray lunder
wrote:

I have a tiny melded ss screw which captures the rigging in my
aluminum spreaders. Been soaking in Kroil, diesel, wd-40 etc all
winter. Tried a heat gun, propane torch, some impact, patience, foul
language, nothing,.. please post if you find a magic formula.