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Unread 06-02-2017, 14:33
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Re: Thunderhex and Thunderhex Bearings

Quote:
Originally Posted by Jimmy Nichols View Post
Yes it is 1/4-20. No issues seen before tapping, but was found after.
Out of curiosity, did you drill the thunderhex prior to tapping 1/4-20 with a #7 Drill bit?

We have old and new Thunderhex and if you do not drill out prior to tapping we have seen it expand, but not if we drill out with #7 before tapping.
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