Plunger latch pins

I'm trying to understand what you are doing. Are you replacing wooden frame screens, or are you replacing aluminum frame screens in wooden windows? If they are wooden frame screens, we do not have any plunger latch pins the length you need. Your best bet would be to go to an older Hardware store. There is special hardware for wooden screens that an older hardware store might still carry. Now if you are replacing aluminum frame screens for a wooden window, we carry a special hanger type clip with a pull ring. Look up on line 70-056 and see the related items that can go along with it.