Quote:
Originally Posted by OM617YOTA
My first preference is welding a new nut onto the bolt. Not always possible.
Next is left hand drill bits, followed by grinding a slot in the top of the sheared-off shaft to grab with a screwdriver.Many applications have enough meat left to make this possible without damaging anything else. Lastly, drill out to next larger size, retap, replace with larger bolt.
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The other part of the problem in this, is the size of the screw and where it broke off. It's an M5, broken below the surface. I rarely have trouble extracting the larger screws. Of course, my final resort will be a Helicoil or something similar.