That's what I'm scared off. I was thinking of using a dremel tool and cut off the Screw head. But since it's under torque might not be a good idea.
I was thinking because there are two other screws that are fine they will hold the column in place and I'll use a left hand drill and then a screw extractor to avoid having the bolt head pop off and fly out like a bullet.
Do you think an m12 screw can be extracted using a screw extractor of the right size?
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Yup these are the screws I'm trying to get at.