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Old 01-18-07, 10:53 AM   #1
richardpu
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Stripped Thread on Hex Bolt

I over-tightened the hex bolt that clamps the stem to the handlebars. Now the six-sided depression in the head of the bolt has been damaged, and I can't unscrew the hex bolt. Is there a technique for getting the hex bolt off under these circumstances?
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Old 01-18-07, 11:05 AM   #2
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I would drill the head of the stripped bolt off. This will relieve the tension on the bolt, from there just take vice grips and remove it. Removing the other hex head before all this of course.
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Old 01-18-07, 11:40 AM   #3
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Before you do anything else, get a quality, NEW hex wrench and try to remove the screw carefully using the new one.
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Old 01-18-07, 04:59 PM   #4
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Quote:
Originally Posted by truckin
Before you do anything else, get a quality, NEW hex wrench and try to remove the screw carefully using the new one.
AND tap the wrench in lightly with a hammer.

I would try vice grips before drilling, if you can get a good grip without scratching anything. There are also the star type screw extractors that you can hammer in to an allen bolt and then unscrew it.

PS. It is an Allen bolt, a hex bolt is what you think of as a regular old bolt.
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Old 01-18-07, 05:23 PM   #5
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A torx bit will often work as well. The one that has to be tapped in with a hammer is the right fit.
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Old 01-18-07, 05:30 PM   #6
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Use a hand impact wrench with allen bit

Use a hand impact wrench with a good allen bit(or even better a torx bit as Rev C suggests).Stuff some foil in the "allen hole" to kinda get it tight again first..A torx bit on the hand impact sounds like a great idea!!
The tap, tap tap with a hammer is a good idea also.Get some oil in there-the threads- also-try not to get it where your allen will fit.
Take your time,Luck!
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Old 01-19-07, 02:01 PM   #7
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Just curious how this turned out for you. Did you get it removed?
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