On the Midget Mustang and the M2 they recommend just moderately tight, not
torqued to the full normal torque value.  The reason is that when you torque
it down real tight you stand the chance of overdoing it and cracking the
bolt.  You don't have that problem when it is just good and snug.

Brian Kraut
Engineering Alternatives, Inc.
www.engalt.com

-----Original Message-----
From: krnet-bounces+brian.kraut=engalt....@mylist.net
[mailto:krnet-bounces+brian.kraut=engalt....@mylist.net]On Behalf Of
Mark Langford
Sent: Thursday, June 08, 2006 1:09 PM
To: KRnet
Subject: Re: KR> Powder Coating


I should also mention that standard analysis procedure around here is to
ignore friction (and therefore bolt tension) on bolted joints that are in
shear, so they are not expected to be super tight anyway.  Having tight
bolts is "gravy" in the conservative stress guy's mind, because his design
does not count on it, because you can't count on it staying tight forever...

Mark Langford, Huntsville, Alabama
see KR2S project N56ML at http://home.hiwaay.net/~langford
email to N56ML "at" hiwaay.net


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