Join Date: Dec 1999
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Re: Seized stainless bolts
depending on what you paid for those stainless bolts they will be really weak or incredibly strong.
if they are common off the shelf "stainless hardware" from Lowes or somewhere like that, they arent rated, meaning grade 2 or less.
304SS is really soft, But it makes a fair bolt in large diameters like 3/4 16, where I used to work we used 8 of them to attatch a 100 HP electric motor to a floating platform with a 4 foot long x 2 foot dia impellor on it, and they held fine, I as suprised they didnt use grade 8, but the engineers had never seen a failure based only on bolt fatige.
and I learned the hard way on those, you HAVE to have a liberal coating of antisize on stainless to stainless or you wont be able to remove it, even a 1/4 stainless bolt will sieze when you try and back it out if its dry.