Deadlatch Mortise Lock for store front aluminum narrow style doors
Steel construction Spring latch lock for commercial doors
Steel construction Dead Latch lock for commercial storefront doors
use
Latch goes out 3/4 inch
Deadlatch may allow exit only
Commonly used for traffic control after hours or when someone wants door to lock when closing.
Sold each

Available in Aluminum and Bronze

Description: Mortise Lock 1-1/8 inch Backset, Steel, Aluminum Finish
Material: Steel

Handed: Yes - Left Hand or Right Hand - Determined by viewing door from outside - Side of the door panel the lock is installed

Available Colors:
Aluminum
Bronze

Backset: 1-1/8 inch with 1/8 inch thick faceplate attached
Backset is measured from edge of lock face to center of cylinder

PLEASE NOTE THE FOLLOWING:
1). Deadlatch locks comes in 3 backsets:
31/32, 1-1/8, 1-1/2 inch, please check measurements carefully.

2). Reversing the handing:  Some locks have a latch that can be pulled out and rotated 180 degrees.  If the latch will not pull out and rotate, see handing article 

Changing The Handing on a Commercial Mortise Deadlatch