Corbin Russwin DL4117 Grade 1 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$560.92
$402.27
Corbin Russwin Corbin Russwin DL4117 Mortise Deadlock, Classroom Function COR-DL4117-KEYED

Corbin Russwin DL4117 Grade 1 Mortise Deadlock, Classroom Function

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Model: DL4117 626
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$560.92
$402.27
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Corbin Russwin DL4117-KEYED Mortise Deadlock with Classroom Function, Single Cylinder, Non-Handed

Commercial-Grade Mortise Deadlock with Classroom Security Function

The Corbin Russwin DL4117-KEYED is a heavy-duty mortise deadlock from the DL4100 Series, engineered for classroom and commercial security applications. This single-cylinder deadlock operates by key from the outside and by thumbturn from the inside, with the thumbturn designed to retract but not project the deadbolt — providing the controlled access required for classroom function environments. The lockcase is constructed of heavy wrought steel with a zinc dichromate finish, and the non-handed design simplifies installation across a wide range of door configurations. Standard door thickness is 1-3/4" (44mm) with optional thicknesses available, and the standard backset is 2-3/4" (70mm).

Professional Features & Benefits

  • Classroom Function Operation: Operated by key outside and thumbturn inside; thumbturn will retract but not project the deadbolt, providing controlled access ideal for classroom security requirements.
  • Non-Handed Design: Universal non-handed configuration simplifies specification and installation, eliminating the need to determine door handing at time of order.
  • Door Thickness & Backset Compatibility: Standard door thickness of 1-3/4" (44mm) with a door thickness range of 1-3/4" to 2-1/4"; standard backset of 2-3/4" (70mm) for versatile installation.
  • Heavy-Duty Lockcase Construction: Heavy wrought steel lockcase with zinc dichromate finish delivers long-term durability in demanding commercial environments.
  • Steel Deadbolt with Hardened Pin: Deadbolt features a 1" (25mm) throw with a hardened steel pin for enhanced resistance to forced entry.
  • Precision Front Plate: Available in brass, bronze, or stainless steel; measures 4-5/8" (117mm) x 1-1/8" (29mm) and is adjustable for flat or beveled doors with a bevel adjustment of 1/8" (3mm) in 2" (51mm).
  • Conventional 6-Pin Cylinder: Brass, 6-pin cylinder with L4 keyway, 0-bitted as standard; includes two nickel silver keys. Security cylinders and interchangeable core (IC) options available via Quick Codes.
  • Comprehensive Keying Options: Supports master keying, construction master keying, 7-pin (FC) conventional, interchangeable core (IC), security, visual key control, concealed key control, pyramid (FC), and pyramid (IC) configurations.
  • Standard Strike Included: Wrought brass or bronze strike measuring 3-1/2" (89mm) x 1-1/8" (29mm); optional strikes available for varied frame conditions.
  • Manufacturer Warranty: Backed by a 1 Year Limited warranty for added confidence and protection.

Technical Specifications

  • Subcategory: Deadlocks
  • Product Group: Mechanical Locks
  • Series: DL4100 Series
  • Keyed Function: Single Cylinder
  • Standard Cylinder: Conventional 6-pin Cylinder, L4 Keyway
  • Standard Latch: Deadbolt: Steel with hardened pin, 1" Throw
  • Standard Strike: 3-1/2" x 1-1/8"
  • Warranty: 1 Year Limited
  • ANSI/BHMA: E6090 Series
  • Product Subgroup: Mortise Locks and Trim
  • Product Type: Mortise Deadlocks
  • Keyed: Yes
  • Commercial/Residential: Commercial
  • Function Description: By key outside and by thumbturn inside, Thumbturn will retract but not project deadbolt
  • Lock Type: Mortise
  • Lock Function: Classroom
  • Product Model: DL4117
  • Product Function: Classroom
  • Door Hand Direction: Non-Handed
  • Door Thickness Range: 1-3/4" to 2-1/4"
  • Product Category: Mechanical Locks
  • Backset (Distance): 2-3/4"
  • Department: Door Hardware

Professional Applications

  • Educational Facilities and Classroom Environments
  • Commercial Office Buildings
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Retail Establishments
  • Multi-Tenant Residential Properties
  • Industrial and Warehouse Facilities

Why Choose Corbin Russwin Quality?

Corbin Russwin mortise deadlock products deliver professional-grade reliability with heavy wrought steel lockcase construction, a zinc dichromate finish, and a steel deadbolt with hardened pin rated for a 1" (25mm) throw. The DL4100 Series meets ANSI/BHMA E6090 Series standards, ensuring compliance with commercial door hardware requirements. Backed by a 1 Year Limited warranty and a broad range of keying and cylinder options, Corbin Russwin deadlocks are engineered for demanding commercial applications where dependable security performance is essential.

Manufacturer Resources

Corbin Russwin Condensed Catalog

Product Specs

Subcategory:
Deadlocks
Product Group:
Mechanical Locks
Series:
DL4100 Series
Keyed Function:
Single Cylinder
Standard Cylinder:
Conventional 6-pin Cylinder, L4 Keyway
Standard Latch:
Deadbolt: Steel with hardened pin, 1" Throw
Standard Strike:
3-1/2" x 1-1/8"
Warranty:
1 Year Limited
ANSI/BHMA:
E6090 Series
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Deadlocks
Keyed:
Yes
Commercial/Residential:
Commercial
Function Description:
By key outside and by thumbturn inside, Thumbturn will retract but not project deadbolt
Lock Type:
Mortise
Lock Function:
Classroom
Product Model:
DL4117
Product Function:
Classroom
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/4" to 2-1/4"
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Corbin Russwin DL4117 626 – Frequently Asked Questions

1) What does classroom function mean on a Corbin Russwin DL4117 deadlock, and does anyone get locked in?
On the DL4117 the deadbolt is thrown only by key from the outside. Inside there is a thumbturn, and it will retract the bolt but will not project it. So a teacher cannot lock the door from inside the room, and nobody inside is ever trapped behind a thrown bolt, since the thumbturn always releases it. Locking down the door means keying it from the corridor side. If you need the bolt thrown from inside the room, this is the wrong function.
2) Will the DL4117 deadbolt reach my existing frame strike, and does a strike come with it?
The deadbolt throws 1 inch and is steel with a hardened pin through it, which is what resists a saw attack on the bolt. A wrought brass or bronze strike measuring 3-1/2 x 1-1/8 inches ships as standard, and the mortise pocket must be prepped at a 2-3/4 inch backset. If your frame is already cut for a different strike size or you have an odd frame condition, optional strikes are available and should be called out at order time rather than trying to reuse the old one.
3) Can I get the Corbin Russwin DL4117 to take my building's small format interchangeable cores?
Cylinder prep is an ordering choice on the DL4117. Four ways to buy it: with the standard conventional 6-pin cylinder in the L4 keyway, as CL6 less core for a Corbin Russwin 6-pin large format IC, as CL7 less core for a 7-pin IC, or LC, less conventional cylinder entirely, if you are supplying your own. If your facility is standardized on an existing core system, order a less-core version and drop your own cores in so the deadlock lands on the master key you already run.
4) I ordered the DL4117 less core. What else do I need to buy to finish the job?
Ordered as CL6, CL7, or LC, the deadlock arrives with no cylinder or core in it, so you supply that. CL6 takes a Corbin Russwin 6-pin large format interchangeable core, CL7 takes a 7-pin IC, and LC needs a conventional mortise cylinder. Keys come only with the standard conventional cylinder version. The strike is included either way, at 3-1/2 x 1-1/8 inches, so that is not a separate line unless your frame needs one of the optional strikes.
5) Do I have to specify handing for the Corbin Russwin DL4117 mortise deadlock?
No handing to determine. The DL4117 is non-handed, so the same lock goes into a left or right hand door with no field conversion and no hand called out on the order. The front plate is adjustable for flat or beveled doors, with a 1/8 inch bevel in 2 inches, which covers the usual beveled edge on a commercial door.
6) Should I use a mortise deadlock or a mortise lockset with a lever on a classroom door?
A deadlock like the DL4117 is bolt only. There is no latchbolt and no lever or knob, so it does not hold the door closed and it does not operate as a passage set. You use it where the door is held by something else, a closer and a separate latch, an exit device, or a pair where the active leaf carries the hardware, and you want a separate keyed bolt for security. If the classroom door needs one device that both latches and locks, you want a mortise lockset with classroom function trim instead, not a deadlock.
7) Is the Corbin Russwin DL4117 rated for a commercial door, and what standard does it meet?
It is a commercial-rated deadlock, built to the ANSI/BHMA E6090 series designation for mortise deadlocks. The lockcase is heavy wrought steel with a zinc dichromate finish. Front plate comes in brass, bronze, or stainless steel and measures 4-5/8 x 1-1/8 inches.
8) Can the DL4117 be put on our building master key system?
Yes, and it is meant to be. The standard conventional cylinder is a brass 6-pin in the L4 keyway, 0-bitted from the factory with two nickel silver keys, so a locksmith pins it to your system on site. Beyond straight master keying, the DL4117 supports construction master keying, 7-pin FC conventional, interchangeable core, security cylinders, visual key control, concealed key control, and pyramid in both FC and IC. Order it 0-bitted and key it yourself, or specify the keying at order.
9) What finishes does the Corbin Russwin DL4117 deadlock come in?
Seven finishes, and each one can be had with any of the four cylinder preps: 605 bright brass, 606 satin brass, 612 satin bronze, 613 satin bronze oil-rubbed, 625 bright chrome, 626 satin chrome, and BSP black suede powder coat. For matching a building already running Corbin Russwin trim, 626 satin chrome is the common commercial default and 613 is the choice where the openings are dark bronze.
How fast can I get the Corbin Russwin DL4117 626 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Corbin Russwin DL4117 626 come with a warranty?
Absolutely. The Corbin Russwin DL4117 626 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Corbin Russwin DL4117 626?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Corbin Russwin DL4117 626 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.

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