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Grade 5 bolts vs A307
- Thread starter lsmfse
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There are certainly cases where one would NOT want to put in a higher grade fastener, but , generally , it is not a problem. A307 is basically an ungraded bolt and A325 is grade 5 or so. I don't see a problem. I have done this sort of thing many times. One thing, which has happened to me,---the inspector may require you to torque the A325 bolts whereas the A307's do not require a specified torque (the somewhat ambiguous pull on a wrench by an average man???). This does not hurt the job quality, just the $bottom line$.
Rod
Rod
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