Stop in for a cup of coffee

zkx14 said
Recommend some anti-seize and turn them slow. Stainless will gall and lock up in a tight thread just by turning too fast.

Good point. If the current screws are half-way out, coat the exposed threads with some anti-seize and turn them back in...then back them out again. Repeat as necessary to get them to lube up and full travel out.

Words to live by...never screw dry.