How much heat is needed to get a bolt out?

Answer 1

Quite a bit--sometimes you need to heat the thing to a dull red.

Answer 2

The heat needed to remove a bolt depends on factors such as the size of the bolt, the material it's made of, and the level of corrosion. Generally, applying a temperature of 300-600 degrees Fahrenheit with a heat source like a torch can help expand the metal and break the corrosion bond, making it easier to remove the bolt. It's important to use caution when applying heat to avoid damaging surrounding components.