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Schlage L9453 Grade 1 Entrance/ Office Mortise Lock With Deadbolt

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Quick Overview

L Series locks are recommended for use in schools, hospitals, and factories, where the finest hardware is required to provide consistent, dependable operation and withstand continuous use and abuse.

  • Extra Heavy-Duty Grade 1
  • ANSI Function: F20
  • ADA Compliant and Fire-Rated
As low as $506.30

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Schlage L9453 Grade 1 Entrance/ Office Mortise Lock With Deadbolt

The Schlage L Series mechanical lock is the industry standard of mortise locks. It has earned its unparalleled reputation over its long history through consistently delivering reliable, durable and flexible performance.

The L Series not only exceeds ANSI/BHMA Security Grade 1 AND Operational Grade 1 standards, it also serves as the foundation for the Schlage L wired electrified, LE wireless electronic and multi-point mortise lock portfolios.


  • Latchbolt retracted by lever/knob from either side unless outside locked by 20° thumbturn rotation
  • Deadbolt actuation through 90° thumbturn rotation
  • When locked, outside key or inside lever/knob retracts both deadbolt and latchbolt
  • Outside lever/knob locked until thumbturn is  restored to vertical position
  • Throwing deadbolt locks outside lever/knob
  • Auxiliary latch deadlocks latchbolt when door is locked
  • Inside lever always free for immediate egress


  • Exceeds ANSI/BHMA Grade 1 operational and security standards
  • Expansive list of configurations and options
  • 50 mechanical functions meet the requirements of most applications
  • Universal lock case that supports 10 different functions
  • 14 finishes paired with 33 levers, two knobs, five roses and three escutcheon designs to enhance any building style
  • Levers constructed of solid brass or solid stainless steel for a strong-yet-comfortable feel
  • Supports standard, SFIC and FSIC cylinder formats
  • Multiple key systems available


More Information
ANSI Function


Lock Function


ANSI Grade

ANSI A156.13, Series 1000, Operational Grade 1 and Security Grade 1


Heavy Duty

Fire Rating

“A” Label 3 Hour Fire Doors, UL10C Positive Pressure Rated

ADA Compliance

Meets ADA requirements – A117.1 Accessibility Code

Keys (for P6 cylinders)

Two nickel silver cut keys per lock


2 3/4" standard


6-Pin solid brass, keyed 6-pin, S123 keyway, keyed different (KD)


1" Throw stainless steel


3⁄4" throw stainless steel latch with anti-friction tongue


ANSI curved lip strike 1-1/4" x 4-7/8" x 13/16" lip to center with dust box standard

Armored Front

1 1/4" x 8" x 7/32" standard

Case Size

4 7⁄16" x 6 1⁄16" x 1"


Steel case and parts are corrosion resistant


Field-reversible handing without opening lock case

Door Thickness

1 3/4" standard


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