A nut or bolt that’s frozen in place is bad enough, but three things are even worse: damaging the corners of a bolt or nut so they end up rounded and hard to turn, breaking off a bolt while attempting to free it, and smashing your knuckles. Here’s how to get it unstuck safely.
5 Wear heavy work gloves and use heat, lubricant, shock and leverage rather than uncontrolled brute force.
Strike the head of the bolt or nut with a cold chisel to shock the connection.