Quote:
Originally Posted by humpy
Cross thread good as lock tite!
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Its' the time-honored way of making things stay put.
If the welded nut doesn't work (please use a new one) then head to the store and get a couple really good bits. Since it is cross-threaded it is locked in tight. I'd tack-weld around the bolt to seal it in then drill out the core. Tap. if it's cross-threaded it likely is not on the correct plane so some of this bolt will be left behind if you are drilling/tapping square to the mating surface.
I do not envy your position....but have been there. Last one I did I had a time-crunch, too late to get stuff from the store, and needed to drive to work the next morning. I used up a titanium cutter bit on my dremel carving the guts of the bolt out (horizontal control arm bolt) most of the way then it was weak enough, I drove the fragments out with a punch. There was no way to get even a 90deg drill in the space. Corrosion had welded the bolt to the bushing core which led to the bushing failing and a nice clunk from the control arm. I finished cleaning slivers from the threads with a pick, ran a chaser through it, then put the $20-something-dollars-each factory-shouldered bolts back in. One LONG, frustrating evening.