[hgs_notes]

I just used an angle grinder with a thin cutting wheel on it. Cut through the side of the carriage bolt head where the weld is. Popped the bolt loose, then cleaned up the floor with a die grinder. If the floor gets bent up a little when tapping the bolt out, just pound it back down with a hammer. If you don't have a die grinder, they are one of the cheapest air tools to get and come in handy. Same with the angle grinder.