Harold:
Do you mean the TP 16511 in Bills link??
The TP 1300 or equal by other mfg does allow the fan support hardware to be attached direct to framing. The TP 16511 type is a nail-on & 35# rated, and I know of no provisions to 'attach' any type of fan braces to that box.
I'm quite sure that some enterprising person could mount a 2x? over the top of the box & run lags/screws into that but ...bye, bye listing.
