Storm window latch
A quick learner from Elmhurst IL says:
June 3, 2016
Hello, I'm trying to find replacement latches for my storm windows. The catch part has broken or worn off and will no longer lock. Can use either metal or plastic. Picture above of both latches for both sides.
Dave from SWISCO responded:
June 7, 2016
My first thought is the 91-182. Take a look and see if this pair of latches matches up to yours. If not, please give more detailed dimensions for us to use as reference.