Corbin Russwin DL4112 Grade 1 Mortise Deadlock, Double Cylinder

Corbin Russwin DL4112-KEYED Mortise Deadlock Double Cylinder with Hardened Steel Deadbolt

Commercial-Grade Mortise Deadlock with Double Cylinder Keyed Function

The Corbin Russwin DL4112-KEYED is a heavy-duty commercial mortise deadlock from the DL4100 Series, engineered for demanding applications requiring keyed access from either side of the door. This double cylinder mortise deadlock features a steel deadbolt with hardened pin and a full 1" (25mm) throw, providing robust security for commercial door openings. Designed for standard door thicknesses of 1-3/4" (44mm) with optional thicknesses available, and a standard backset of 2-3/4" (70mm), the DL4112-KEYED accommodates a wide range of door configurations. The non-handed design simplifies installation across left- and right-hand applications, while the adjustable front accommodates both flat and beveled doors with a bevel adjustment of 1/8" (3mm) in 2" (51mm).

Professional Features & Benefits

• Door Thickness Compatibility: Standard door thickness of 1-3/4" (44mm) with optional door thicknesses available via Quick Codes, accommodating a range of 1-3/4" to 2-1/4" for versatile commercial installations.
• Standard Backset: 2-3/4" (70mm) standard backset ensures compatibility with common door preparations and simplifies installation in new and retrofit applications.
• Hardened Steel Deadbolt: Steel deadbolt with hardened pin delivers a full 1" (25mm) throw for superior resistance to forced entry in commercial security applications.
• Heavy-Duty Lockcase Construction: Heavy wrought steel lockcase with zinc dichromate finish provides exceptional durability and corrosion resistance for long-term performance.
• Adjustable Front Plate: Brass, bronze, or stainless steel front measuring 4-5/8" (117mm) x 1-1/8" (29mm), adjustable for flat or beveled doors with a bevel adjustment of 1/8" (3mm) in 2" (51mm).
• Standard Strike: Wrought brass or bronze strike measuring 3-1/2" (89mm) x 1-1/8" (29mm); optional strikes also available for specialized applications.
• Conventional 6-Pin Cylinder: Brass, 6-pin cylinder with L4 keyway, 0-bitted as standard; security cylinders available via Quick Codes. Includes two nickel silver keys standard.
• Extensive 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.
• Non-Handed Design: Non-handed configuration eliminates handing concerns during ordering and installation, reducing errors and simplifying inventory management.
• Manufacturer Warranty: 1 Year Limited warranty for added confidence and protection.

Technical Specifications

• Subcategory: Deadlocks
• Product Group: Mechanical Locks
• Series: DL4100 Series
• Keyed Function: Double 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: E6060 Series
• Product Subgroup: Mortise Locks and Trim
• Product Type: Mortise Deadlocks
• Keyed: Yes
• Commercial/Residential: Commercial
• Function Description: By key either side
• Lock Type: Mortise
• Lock Function: Double Cylinder
• Product Model: DL4112
• Product Function: Double Cylinder
• 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

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

Why Choose Corbin Russwin Quality?

Corbin Russwin mortise deadlock products deliver professional-grade reliability with heavy wrought steel lockcase construction featuring zinc dichromate finish and a hardened steel deadbolt with a full 1" (25mm) throw. The DL4100 Series meets ANSI/BHMA E6060 Series standards, ensuring compliance with commercial door hardware requirements. Backed by a 1 Year Limited warranty and an extensive range of keying options, Corbin Russwin mortise deadlocks are engineered for demanding commercial applications where dependable security performance is essential.