Alternate Idea
I have dried 4” x 5” sheet films for years in simple matter that requires no hanger. I place the film with an edge resting on a countertop or shelf with the sheet leaning about 10º to 15º against the wall. The top edge rests against the wall. I place the sheet so that the emulsion side faces the wall. Since the emulsion is underneath the sheet, dust is less likely to settle upon the emulsion as the film dries. Of course, I choose a clean, relatively dust-free area to begin with.
You can place a ruler or a small piece of wood molding on the countertop and temporarily tape it to the countertop as a bottom stop and place the film so that the bottom edge rests against the stop. I generally don’t bother to do so, but you might want to do this to ensure that the bottom of the sheet doesn’t slide forward.
This has worked well for me to dry my sheet films.