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  • Users: PJ.
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  1. PJ.

    Bolt/threaded rod strengths differ for Grade 8.8 in BS 4190 and BS 5950

    BS 4190 says the bolt/thread rod strength for Grade 8.8 is 640 MPa. BS 5950 says it's 560 MPa for the same material. Why the difference? There is no difference for Grade 4.6, but there is again a difference for Grade 10.9. Thanks.

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