replacement storm/screen plastic latch

Attached is pic of parts I need. The overall length is 3-3/4 inches. The channel it rides in (looking from front view)is maybe 7/16ths wide top-bottom. I don't see one that is that long in plastic. # 152/153 is not long enough but the other dimensions look right on or super close. The bottom thickness of my latch is 1/4 inch. Like I said, pretty darn close to 152. What do you think?