There are no markings on these.. I bought the house and the screen haven't been used except in the bedroom where I took this one off. There are 2 per screen only used on the bottom..
Casey from SWISCO responded:
April 15, 2021
Hello,
Your photo looks a lot like our 70-048 Malta frame latch. To determine if it will work for you, you'll need to compare our dimensions shown below to yours. If they don't quite match up, you may want to convert to our 70-204 latch instead. Thank you!