Corbin Russwin DL4117 Grade 1 Mortise Deadlock, Classroom Function

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.