mixing hardware grades


Old 06-16-19, 07:41 PM
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mixing hardware grades

Is there any harm in mixing a grade 2 bolt with grade 8 nuts and washers?
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Old 06-16-19, 09:56 PM
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Absolutely no harm at all. Just keep in mind that your fastener is only grade 2.
Old 06-16-19, 09:58 PM
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It's always best to keep consistent, you wouldn't want to spend extra money on a higher grade that was not needed.

Also need to assume the performance will be that of the lowest grade (weakest link).
Old 06-17-19, 03:07 AM
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It all depends on the application, I've mixed the grades a lot on non critical applications. If the job requires the extra strength then it all needs to be grade 8.

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