A quick learner from Glastonbury Connecticut says:
May 26, 2020
I would like to replace my hardware that keeps my porch screen in place. Some of the fastener screws are either broken or frozen
Bob from SWISCO responded:
May 29, 2020
Take a look at our 70-110 and 70-112. This clip and fastener perform the same function, but look them over to see if you think they could work for you. You may need to drill the broken screws out.