On Thu, 26 May 2005 00:41:47 -0300, Terry Spragg
wrote:


If the bolts were bent and cast into the molten keel, you will not
remove them. You should find out the breaking strength of the bolts
and then do not exceed this torque when trying to remove the nuts or
bolts. If you get up close to breaking torque for your bolts and
they don't come out and they don't break they are ok. Hell, If they
get up to 75% and don't give, I'd trust them.
///
Terry K

This certainly sounds like uncommonly good advice.
Unfortunately, it is not practical - something of a day dream in fact.

Engineers find great difficulty in relating tightening torque on a
well-characterized fresh nut and bolt to its allowables or breaking
strength - but when it comes to a submerged, possibly corroded
fastener, you will be hard pressed to compute a torque value that is
within a factor of three of the actual value which snaps the shank.

Brian Whatcott Altus, OK