We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember robgraham
saying something like:

Short of slackening these bolts off say once a year to brake the
corrosion, has the collective any suggestions on say change of bolt
material to prevent this happening in future - the future I hope being
15 years away again.

Never-Seez specifically mentions furnace door hinges etc.
http://www.neverseezproducts.com/neverseez.htm