Originally Posted by MichaelW
Paint is removed with lead shot which will not damage steel threads.
My choice of rest preventer is WD40 because I had some in the shed. It works OK for a badly abused steel commuter bike.
WD-40 will work as a rust inhibitor if there is no existing rust. I remember working at a hardware store as a teen. The store owner wrote "WD-40 prevents rust" with WD-40 on a bare-metal paint can and left it outside in the rain and weather. After about a month, the can rusted except for the area that was treated with WD-40 and you could read "WS-40 prevents rust" by the shiny treated area.