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  • Users: SSWWRITE
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  1. SSWWRITE

    Fatigueproof bolt failure

    I am manufacturing a hex shaft( fatigueproof material) with a 1/2-13 o.d. thread 1'' long on the end. Customer is having parts break at the threads. They are telling me that the torque on this should go up to 165ft. lbs. - Is this correct? I could not find a formula for the fatigueproof. They...

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