Yeah, I wanted to see if I could get it without a torch since they are in the interior of the cab. I don't want to discolor the paint on the rail. Although the screws are rusted the rail is in great shape. I tried hammering with a screw driver but they just don't budge.
I've never drilled out a screw and wasn't sure if maybe that could be an option. Or maybe a screw extractor (also never used)