Many listed hanger fasteners have their own weight limits. When I calculate the allowable hanger spacing for different size pipes, should I be using the Ultimate Pullout, UL Test Load, or FM Test Load?
Just looking at the Sammys for Wood Vertical (https://www.swfastener.com/pdf/ITW%20Sammy.pdf), for instance - some of the wood screws can have three different load values and I'm not entirely sure which I should be using to determine the appropriate hanger spacing for a sprinkler system. Thanks in advance.
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