Help! Threaded screw

Hi all,
I recently purchased a core emblaser and in the process of assembling it. I have the new laser 10W which I’m trying to attached but one of the screws on the bracket is threaded!! Does anyone have any tips on how to get it out? The others screws were fine. I know they are delicate screws but this one screw I can’t get out.

Worst case you can use a dremel to cut a slot in the screw. Then use a flat head screwdriver to unscrew it.

Since the upgrade comes with new screws and bracket, it doesnt matter if you damage the original parts.