Schlage L9457B Classroom Secur...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,594.00
$1,115.80
Schlage L9457B Classroom Security with Deadbolt Mortise Lock with Small Format IC Less Core

Schlage L9457B Classroom Security with Deadbolt Mortise Lock with Small Format IC Less Core

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Model: L9457B06A626
From the L9000 Series Collection
$1,594.00
$1,115.80
Selected Finish is
Selected Lever is
Selected Rose is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,594.00
$1,115.80
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Schlage L9457B Classroom Security with Deadbolt Mortise Lock with Small Format IC Less Core

For more than 90 years, Schlage has been creating the strongest and most technologically advanced security products for homes, multi-family, commercial, and institutional buildings. We have been meticulous designers, painstaking engineers, and proud craftsmen. From durable mechanical locks to comprehensive electronic access control solutions and biometrics, Schlage provides protection at critical moments–when property and personal security are at stake. In homes, public buildings, and the workplace, at the end of the day, Schlage stands for one thing: strong.

  • Classroom Security Lock with Deadbolt - Latchbolt Retracted From Either Side, Deadbolt Thrown by Key From Either Side, Throwing Deadbolt Locks Outside, Turning Inside Lever Retracts Dead and Latchbolt and Unlocks Outside, Inside is Always Free
  • ANSI/BHMI Certified A156.13-2012
  • Commercial Grade 1
  • Lock Body Mortises Inside the Edge of the Door
  • UL Listed for 3 Hour Fide Door

Product Overview

  • Category: Mechanical Commercial Locksets

  • Subcategory: Mortise Locksets

  • Series: L Series

  • Function: Classroom Security with Deadbolt

  • Handing: Reversible

  • Fire Rated: Yes (UL Listed for 3-Hour Fire Door)

Dimensions & Door Specs

  • Backset: 2-3/4"

  • Door Thickness: 1-3/4"

  • Door Range: 1-3/4"

  • Lever Dimensions: 4-5/8" Length with 2-1/2" Projection

  • Rose Dimensions: 2-9/16" Diameter

  • Latch Faceplate: 1-1/4" x 8"

  • Strike Dimensions: 4-7/8" x 1-1/4" Lip (ANSI Strike)

Trim & Finish

  • Lever/Knob Design: 06 Lever

  • Rose/Escutcheon Design: B Rose

  • Material: Zinc Base

  • Finish: Satin Chrome

  • Finish Code: 626

Warranty & Logistics

  • Warranty: Limited 10-Year Mechanical / 3-Year Electro-Mechanical

  • Order Qty: 1

  • No. of Inners: 1

  • Hazardous Material: No

Manufacturer Resources

Product Specs

Subcategory:
Mortise Locks
Product Group:
Mechanical Locks
Series:
L Series
Function Description:
Latchbolt retracted by knob/lever from either side unless outside is made inoperative by key outside or by turning inside thumbturn. When outside is locked, latchbolt is retracted by key outside or by knob/lever inside.
Grade:
Grade 1
Duty Level:
Heavy Duty
Keyed Function:
Single Cylinder
Standard Cylinder:
Conventional 6-pin Cylinder, C Keyway
Handle Type:
Lever
Standard Strike:
10-072 1-1/4" x 4-7/8" Square Corner Strike, Box (1-3/16" Lip Length)
Mortise Case Size:
4-7/16" x 6-1/16" x 1"
Keyed:
Yes
ANSI/BHMA:
F04
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Locks
Commercial/Residential:
Commercial
Lock Type:
Mortise
Lock Function:
Classrom
IMAP Policy:
Yes
Product Attribute:
Mortise Locks
Electronic:
No
Product Model:
L9457
Collection:
L9000 Series
Product Function:
Entrance/Office
Door Hand Direction:
Handed
Door Thickness Range:
1-3/4"
Product Substrate:
CRS with Zinc Dichromate Plating
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Schlage L9457B06A626 – Frequently Asked Questions

1) How does the Schlage L9457 classroom security function actually work on a classroom door?
The L9457 is classroom security with deadbolt. The latchbolt retracts from either side, and the deadbolt is thrown by key from either side. Throwing the deadbolt locks the outside lever; turning the inside lever retracts both the deadbolt and the latchbolt and unlocks the outside. The inside is always free for egress, so a teacher can lock down from inside the room with a key without stepping into the corridor.
2) Does the L9457B come with a cylinder, or do I have to supply the core?
The B suffix means small format interchangeable core, less core, so no core ships with it. You supply and install your own SFIC core to match your master key system. The conventional version of the lock uses a 6-pin cylinder in Schlage C keyway, so if you were expecting a standard keyed-in cylinder rather than an IC prep, that is the other route.
3) What strike ships with the Schlage L9000 mortise lock and will it drop into an existing ANSI strike prep?
It comes with the 10-072 square corner box strike, 1-1/4 by 4-7/8 inches with a 1-3/16 inch lip. That is the standard ANSI strike footprint, so it lands in a frame already prepped for an ANSI mortise strike. The latch faceplate is 1-1/4 by 8 inches and the mortise case measures 4-7/16 x 6-1/16 x 1 inch, which is what your door pocket has to accept.
4) Can I use the L9457 mortise lock on a labeled fire door?
Yes. The lock is UL Listed for use on 3 hour fire doors, and it is ANSI/BHMA A156.13-2012 certified, Commercial Grade 1, function F04. That combination is what a school or hospital spec normally calls for on a rated corridor or classroom opening.
5) Will this L9000 lock work in doors already fitted with Schlage L Series mortise locks?
Yes, within the same parameters. It is an L9000 Series body on a 2-3/4 inch backset for 1-3/4 inch doors, so it goes into the same standard L Series mortise pocket and ANSI strike prep the rest of your L Series openings use. Matching the visible trim is the other half: pick the same lever design (02, 06 or 17) and rose (A or B) in 626 satin chrome as the existing doors.
6) Our door is 1-5/8 inch thick - can I still use the L9457B?
No. The Schlage L9457B is specified for a 1-3/4 inch door thickness only. For thinner leaves, the Alarm Lock Trilogy classroom locks cover 1-5/8 to 1-7/8 inches: the DL2700CR Grade 1 classroom function weatherproof unit and the DL3500CR Grade 1 classroom unit both carry that range. Note those are electronic keypad locks rather than key-operated mechanical mortise locks.
7) We need audit trail and code access on a classroom door instead of keys - what replaces the L9457B?
Move to an electronic classroom mortise lock. The TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID technology for 1-3/4 inch doors, and the TownSteel FME-4000 is an electronic intruder classroom mortise lockset, also Grade 1 heavy duty RFID on 1-3/4 inch doors. The Alarm Lock DL3500CR is a Grade 1 Trilogy electronic mortise lock with classroom function and 300 user codes for doors 1-5/8 to 1-7/8 inches. The Schlage L9457B is a mechanical, non-electronic lock keyed to a conventional 6-pin C keyway cylinder.
8) Is there a classroom mortise lock without the deadbolt the L9457B carries?
Yes. The Cal-Royal NM8070 is a heavy duty Grade 1 classroom mortise lockset with an auxiliary deadlatch rather than a separate deadbolt, and the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset in the ML2000 series. Both fit 1-3/4 inch doors, the same thickness the Schlage L9457B is built for. The L9457B differs in that the deadbolt is thrown by key from either side and the inside lever retracts both the deadbolt and latchbolt in one motion, so choose it when the opening needs a separate deadbolt under classroom security control.
9) What lever and rose choices do I specify when ordering the Schlage L9457B?
Three lever designs, 02, 06 and 17, each with either the A or B wrought rose, all in 626 satin chrome. The 06 lever measures 4-5/8 inches long with 2-1/2 inch projection and the rose is 2-9/16 inches in diameter, which matters if you are matching the trim footprint on doors that already have L Series locks.
10) Do I need to order a handed version of this L Series mortise lock?
Handing is called out on the order. The lock body is reversible, but the trim is supplied handed, so give the hand of the opening when you order rather than assuming a field swap covers it.
11) What is a mechanical Grade 1 classroom mortise alternative to the Schlage L9457 from another brand?
Two close mechanical options: the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset for 1-3/4 inch doors, and the Cal-Royal NM8070 is a Grade 1 heavy duty classroom mortise lockset with auxiliary deadlatch, also 1-3/4 inch. If you specifically need the visual status indicator on the classroom security function, the Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset with ANSI strike for 1-3/4 inch doors.
12) Is the L9457 the right function for an office door, or should I use a different mortise lock?
It is classroom security with deadbolt, keyed from both sides, which is more lock than a typical office needs and means no inside thumbturn for staff to secure the room by hand. For an office or entrance opening, the Cal-Royal NM8050 is a Grade 1 entrance/office mortise lockset with auxiliary deadlatch for 1-3/4 inch doors, and the Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon on a 2-3/4 inch backset. For a storeroom door that should always stay locked outside, look at the Accentra 8805FL or Cal-Royal NM8080.
13) We want an intruder-function lock body for classroom lockdown - how does that differ from the L9457B?
The BEST 45HCA series 45HCAINL is a heavy duty mortise lock body with intruder function, and the TownSteel FME-4000 is an electronic intruder classroom mortise lockset, Grade 1 heavy duty for 1-3/4 inch doors. Intruder function locks are secured from inside the room. The Schlage L9457B instead locks the outside lever by throwing the deadbolt with a key from either side, and the inside lever always retracts both bolts for free egress.
14) Is the Sargent 4874 mortise deadbolt a substitute for the L9457B?
No. The Sargent 4874 is a double cylinder mortise deadbolt on a 2-3/4 inch backset in the 4870 series - deadbolt only, with no latchbolt or lever trim. The Schlage L9457B shares the 2-3/4 inch backset but is a complete lever mortise lockset combining latchbolt and deadbolt in one 4-7/16 by 6-1/16 by 1 inch case. Use the 4874 only as an auxiliary deadbolt above a separate latch, not as a replacement lockset.
15) What mortise lock covers a dormitory or corridor door where the L9457B classroom function is not right?
The Sargent 7925 is a Grade 1 heavy duty dormitory exit function mortise lock in the 7900 series with rose trim and a single cylinder deadbolt. Like the Schlage L9457B it is heavy duty Grade 1 and uses a single cylinder keyed arrangement, but its dormitory exit function suits corridor and residence hall doors, while the L9457B is a classroom security function with the deadbolt keyed from either side.
16) What is a simpler office or entrance mortise lock than the L9457B for a door that does not need a deadbolt?
The Cal-Royal NM8050 is a heavy duty Grade 1 office/entrance mortise lockset with an auxiliary deadlatch for 1-3/4 inch doors, and the Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon on a 2-3/4 inch backset, non-keyed, for doors 1-3/4 to 2-1/2 inches. Both drop the separate deadbolt that the Schlage L9457B carries, and the Hager unit is non-keyed while the L9457B takes a conventional 6-pin C keyway cylinder.
17) Which mortise locks match the L9457B on 3-hour fire door listing?
Within the same family of mortise products, the Falcon MA101 Grade 1 heavy duty mortise passage lock carries a fire rating, and the Schlage Electronics LEMD-GRW Grade 1 ENGAGE wireless mortise lock is rated 3 hours. The Schlage L9457B is UL listed for a 3-hour fire door and is ANSI/BHMA A156.13 certified Grade 1, so it can be specified on the same rated openings while providing mechanical classroom security rather than passage or credential-based access.
18) Is the Schlage LE series mobile-enabled mortise lock an equivalent to the L9457B?
They are not equivalent. The Schlage Electronics LEBMB-ADD mobile-enabled mortise lock is Grade 2, rated 3 hours, for 1-3/4 inch doors, with privacy, office and apartment functions driven by a push button and LED. The Schlage L9457B is a Grade 1 mechanical classroom security lock with deadbolt on the same 1-3/4 inch door thickness. If the specification calls for Grade 1, the LE unit will not satisfy it.
19) What mortise option suits a behavioral health room where the L9457B lever trim is unacceptable?
Use a ligature resistant trim instead. The TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in stainless steel for 1-3/4 inch doors, the MRX-A-01 is the arch trim version in satin stainless, and the Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant in satin stainless steel. All three are passage-type trims, so they do not provide the keyed classroom security and deadbolt control of the Schlage L9457B.
20) What material is the Schlage L9457 lock case and trim made from?
The lock case is cold rolled steel with zinc dichromate plating, and the trim is zinc base finished in 626 satin chrome. It is rated heavy duty for commercial use, which is the reason this one shows up on school and institutional corridor doors rather than light commercial interiors.
21) I only need a mortise lock body, not a full trim package like the L9457B - what is available?
BEST offers bodies on their own: the 45H series 45HCAC is a heavy duty mortise lock body with public entrance function and field reversible operation, and the 45HCAINL is a heavy duty mortise lockbody with intruder function. The Schlage L9457B is supplied as a complete lockset with lever and rose trim, offered with 02, 06 or 17 levers on A or B wrought roses.
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Does the Schlage L9457B06A626 come with a warranty?
Absolutely. The Schlage L9457B06A626 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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