It definitely sounds like you need new tilt latches. We carry a ton of different types, which you can see here. I recommend starting off by browsing through that selection. In order to narrow down the list of potential replacements, though, I will need you to measure the distance between the two screw holes, center-to-center, and write out what you get for me. I will then see what the best option in our inventory would be.
Thank you! That does appear to be a 2" hole center spacing. With that in mind, we have two possibilities: the 26-337 and 26-344.
Both latch pairs have the same 2" hole spacing, but they differ in a few other details, most notably the offset. That would be the distance between the first screw hole center and the edge of the latch. They also have a different overall width.
Review the dimensions we show below to see if either one of these products would be a good match for you. Neither one is exactly the same as your original but my hope is that one matches up well enough that it doesn't matter.