Double keyed cylinder lock for storm / security door constructed out of solid brass.

It is used with security screen door mortise locking devices.
It will adjust to most door thicknesses.
Cylinder Fixing Screws Length: 1-3/8 inch fits 1  to 1-3/4 inch thick doors.
Used for interior and exterior key locking.
Schlage Keyway 5 Pin, SC1. 
Fits: Atrium , Marks  and other profile / Euro cylinder locks.

Contents
1 cylinder
2 keys

Note: This cylinder is not rekeyable.

Priced and sold each.