Pella Slide Bolt Pack for Screen Door - Black | Reliable Security and Easy Installation

This Fits at the top and bottom of the secondary door astragal and holds the door panel in position when closed

(Pella AS/DS/PL Hinged Screen Door Slide Bolt Kit with Backplates)

Service Dates: 5/2003 - 03/2019
Contents: 2 bolt assemblies and 2 backing plates 

Install Note: 
Hard to get in - may require tapping lightly with a hammer. 

Be careful not to damage during installation.