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RE: Screw Pullout Values

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-----Original Message-----
From: Gary Hodgson & Associates [mailto:ghodgson(--nospam--at)bellnet.ca] 
Sent: Tuesday, June 07, 2005 8:31 AM
To: seaint(--nospam--at)seaint.org
Subject: Screw Pullout Values

I'm looking for pullout values for screws in oak parallel to the 
grain.  Does anyone know of any net resources regarding this?

-----/Original Message-----

Gary, look at Table 11.3.2A of the 2001 NDS. It shows various "oaks" at
G = 0.67 to 0.68 (White Oak is 0.73).

Then go to Table 11.2A; it shows values for W for lag screws for various
values of G including those listed for oak.

Finally, note that the End Grain Factor, Ceg for "lag screws loaded in
withdrawal from end grain" is 0.75 (Section 11.5.2).

That oughta get you there.


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