[Elecraft] Overtighted Case Screw Removal?

[Randy Farmer]

Another almost miraculous chemical fix for such problems is to get your 
hands on a can of Kano Kroil. (See details at http://www.kanolabs.com/). 
This stuff is flat-out unbelievable. I used it for many years to loosen 
stubbornly rusted and/or galled antenna hardware and it never failed to 
do the job. It used to be hard for "civilians" to get, but my dad was a 
maintenance mechanic at an Alcoa Aluminum rolling mill and he got me a 
can or three. That was around 30 years ago, and I still have most of one 
can left. I see now that you can buy it directly from the company's web 
site. It ain't cheap, but it's the best thing going.

73...
Randy, W8FN

> Secondly, this is a potential problem with steel screws binding in
> aluminum - it is also temperature dependent - aluminum and steel do not
> expand at the same rate.  A tiny drop of oil on the screw threads when
> inserting the screw will prevent future occurrences, and often a drop of
> oil around the screw head and a half hour of patience while it seeps in
> will allow the screw to be removed.