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<div dir="ltr" data-setdir="false">Not to my knowledge. Patrick usually cites some mettalurgy guru or ClarkReder for enginering facts, but I don’t have that in my class notes. </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Speaking of which - MODtruss has a training class April 1,2, at their headquarters in Allenton, WI. When I talked with them this week there were still a few seats remaining. </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Excellent, Free training that goes over their product line as well as truss inspections/maintenance, fundamentals of structural design, and basic engineering principles. (And if I can do that math, you can, too!) </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Tell Monica I sent you: <a style="font: normal 13px/18px var(--yahoo-web-font-stack,Helvetica Neue,Segoe UI,Helvetica,Arial,Lucida Grande,sans-serif); color: rgb(29, 34, 40); font-family: Heebo, sans-serif; font-size: 14px; text-transform: capitalize;">+1.844.663.8787 </a></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Kristi R-C</div><div><br></div>
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On Friday, March 1, 2024, 11:17:21 AM CST, Bruce Cooper via Stagecraft <stagecraft@theatrical.net> wrote:
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<div><div dir="ltr">This seems dubious - Grade 8 Bolts have a Yield Strength of 130kpsi.<br clear="none"><br clear="none"> For a standard 5/8" bolt this translates to a dry tightening torque of <br clear="none">~220lb-ft or a lubricated tightening torque of around half that.<br clear="none"><br clear="none"> Does MODTruss recommend lubricated fasteners? <br clear="none"><br clear="none">:Bruce Cooper<br clear="none"><div class="ydp468f9d3byqt0155285051" id="ydp468f9d3byqtfd11958"><br clear="none">On Friday, March 1, 2024 2:24:03 AM CST Kristi R-C via Stagecraft wrote:<br clear="none">> My notes say “80 lbs torque - Grade 8 bolts can be reused. 150 can not as<br clear="none">> it deforms the metal” That’s from MODtruss dealer training last August.<br clear="none">> Kristi R-C<br clear="none"><br clear="none"><br clear="none"><br clear="none"><br clear="none"><br clear="none">____________________________________________________________<br clear="none">For list information see <<a shape="rect" href="http://stagecraft.theprices.net/" rel="nofollow" target="_blank">http://stagecraft.theprices.net/</a>><br clear="none">Stagecraft mailing list<br clear="none"><a shape="rect" href="mailto:Stagecraft@theatrical.net" rel="nofollow" target="_blank">Stagecraft@theatrical.net</a><br clear="none"><a shape="rect" href="http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net" rel="nofollow" target="_blank">http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net</a><br clear="none"></div></div></div>
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