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Lag Screw, Screw, & Nail Multiple Shear Connections

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Title: Lag Screw, Screw, & Nail Multiple Shear Connections

In the 2001 NDS, section 11.3.8 deals with multiple shear connections, while section 11.6 deals with multiple fastener connections.

Does this address your question?


John "Buddy" Showalter, P.E.
Director, Technical Media
AF&PA/American Wood Council
1111 19th Street, NW, Suite 800
Washington, DC 20036
P: 202-463-2769
F: 202-463-2791

The American Wood Council (AWC) is the wood products division of the American Forest & Paper Association (AF&PA). AWC develops internationally recognized standards for wood design and construction. Its efforts with building codes and standards, engineering and research, and technology transfer ensure proper application for engineered and traditional wood products.

The guidance provided herein is not a formal interpretation of any AF&PA standard.  Interpretations of AF&PA standards are only available through a formal process outlined in AF&PA's standards development procedures.


From: utej(--nospam--at)
To: seaint(--nospam--at)

The 1997 NDS has a section regarding multiple shear connections in the bolt
section only and not the lag screw, screw, or nail section.  The 2001 NDS has
combined all fasteners into one chapter called "Dowel-Type Fasteners".  In this
chapter, section 11.6 is entitled "Multiple Fasteners" and does not differiente
between bolts, lag screws, screws, and nails.  Is it appropriate to use the
same design methodology for lag screws, screws, and nails as for bolts
attaching more than two members together?