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#73830
RICHARD A. WHITE
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    Lifetime Member

    Here is some light reading….:

    http://www.almabolt.com/pages/catalog/b … ensile.htm

    I read that as a 1/4 -20 bolt, grade 2 can hold a proof load of 1750 lbs with a tensile strength of 2350 lbs.

    That is not the same as the amount of twisting torque they can handle..

    So how much weight can a 3/8-16 standard bolt hold while lifting?

    http://www.richardsoutboardtools.com
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