Gary, Dave, et al.
I've heard of mechanics referring to `stretch bolts' used to fasten
engine heads, maybe they're actually studs, but what I heard that
they were specially-engineered bolts, to be used ONE time only, as
the amount of stretch was part of the overall torque calculation,
and once they were stretched once, they must not be used again be-
cause they would BREAK.
There may be other applications for stretch bolts, such as rod caps.
I hope this is not a case of too little information causing too
much trouble, on my part, but then it sounds like it could be worth
your time to find out for sure. It sounds to me that these stretch
bolts are quite different from the usual graded variety.
Anyone out there have the definitive answer on this ?
Best regards,
Tom Tweed
SW Ohio
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