Screen corners

A home owner from Ostrander, Ohio says:
The screens are for Malta windows. The screens are meant to be installed from inside the house. One holds the screen out horizontally and fits the corner slot over a pin. When the screen is lowered to fit the space, the pin goes into the groove on the Slot. Over time, some of these slots have broken open so there is nothing to hold the screen firmly in place. Are there replacement parts or workarounds? Thanks. The picture should show one screen with the corner in tact and another with the slot broken. Thanks for your help.
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Bob from SWISCO responded:

Take a look at our 95-150 and 95-151 Malta Corner Keys. Look over the dimensions we list just to make sure they'll fit your screen windows.

A home owner from Ostrander, Ohio says:
Yes! That is it. I will be ordering.
95-150 : Malta Window Corner, LH
Malta Window Corner, LH
95-151 : Malta Window Corner, RH
Malta Window Corner, RH
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