Need to change the cylinder on a security screen door? – Lock Supplies
Woodcore Mortised Lock Case (43079)
Solid Brass Lever Handle Mortise Lock Set for Screen/Storm Door Replacement, Only for Left-hinged Outswing Door(View from Outside) of 1 in. Or 1.38 in. Thickness, Brushed Satin Nickel - Amazon.com
How to Replace / Change Security Door Lock - Without Key - YouTube
LARSON Black Lockable Screen/Storm Door Replacement Push-button Handle in the Screen Door & Storm Door Handles department at Lowes.com