Minimum Number of Fasteners

In buildings, connections carrying calculated stresses, except lacing, sag bars, and girts, should be designed to support at least 6 kips.
In highway bridges, connections, including angle bracing but not lacing bars and handrails, should contain at least two fasteners. Web shear splices should have at least two rows of fasteners on each side of the joint.
In railroad bridges, connections should have at least three fasteners per plane of connection.
Long Grips. In buildings, if A307 bolts in a connection carry calculated stress and have grips exceeding five diameters, the number of these fasteners used in the connection should be increased 1% for each additional 1⁄16 in in the grip.


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