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Jim Sims
Jim Sims is offline
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Join Date: May 2000
Location: Los Alamos, NM, USA
Posts: 6,044
Quote:
Originally posted by philfran
I might as well throw in my 2 cents. Blast away

Bolts are made to stretch. That is what keeps them snug.

Now the stud vs bolt. I saw a guy from ARP on Shadetree Mechanic that was talking about the difference. I can't remember exactly what he said but it had something about a bolt has a stretch and a twist at the same time when it is tightened. A stud is not being twisted so it works better than a bolt.

Make sense?
Nope! Only if there is no thread friction does the stud see zero torsional stress. All real materials exhibit friction. When the nut is tightened down it generates torsional stress in the stud. The torsional stress relaxes (edit gradually) to zero in both studs and bolt or screws as soon as the tightening is complete. Cheers, Jim

Last edited by Jim Sims; 03-01-2003 at 09:48 PM..
Old 03-01-2003, 05:35 PM
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