[SML] Unistrut safety factor specs?

[Stephen Lee]

Does anyone know what the safety factor is on the load ratings for
plain-vanilla P1000 (1 5/8" square, 12 gauge) Unistrut? For some reason,
it's not in the published load data.

I don't really need an exact answer, since this is just for a mental
exercise. Their catalog lists safety factors for their brackets, beam
clamps, and hardware, but not for the strut itself. Am I simply missing it
somewhere?

Stephen Lee
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