the tough window glass that a lot of storm windows use will meet the criteria as storm window hardware, and this looks like it ought to be the situation. other people might say that when the window head or the window sash of tough storm windows is both developed to be strong enough to stand up to a wide variety of various hazards, then folks should also take into account these to be storm window hardware.
there are a lot of different parts that could be the one that you will need, except if you are 100% sure that that is the part you need remember to submit a picture of 