Corbin Russwin DL4111 Grade 1 Mortise Deadlock, Cylinder x Blank

Corbin Russwin DL4111-KEYED Mortise Deadlock Cylinder x Blank with 1" Throw Deadbolt

Commercial-Grade Mortise Deadlock with Keyed Cylinder Entry and Blank Opposite Side

The Corbin Russwin DL4111 is a heavy-duty commercial mortise deadlock from the DL4100 Series, designed for one-sided keyed operation with a blank opposite side. Engineered for standard door thicknesses of 1-3/4" (44mm) with optional thicknesses available, and featuring a standard 2-3/4" (70mm) backset, this lock delivers reliable security for demanding commercial environments. The steel deadbolt with hardened pin provides a full 1" (25mm) throw, while the heavy wrought steel lockcase with zinc dichromate finish ensures long-term durability. The front plate is available in brass, bronze, or stainless steel, measuring 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).

Professional Features & Benefits

• Door Thickness Compatibility: Standard installation for 1-3/4" (44mm) doors with a door thickness range of 1-3/4" to 2-1/4"; optional thicknesses available via Quick Codes for versatile application.
• Precise Backset Dimension: Standard 2-3/4" (70mm) backset ensures proper alignment and compatibility with standard door preparations in commercial settings.
• Heavy-Duty Deadbolt: Steel deadbolt with hardened pin delivers a full 1" (25mm) throw for robust security and resistance to forced entry.
• Durable Lockcase Construction: Heavy wrought steel lockcase with zinc dichromate finish provides exceptional corrosion resistance and long-term structural integrity.
• Versatile Front Plate: Available in brass, bronze, or stainless steel at 4-5/8" (117mm) x 1-1/8" (29mm); adjustable for flat or beveled doors with 1/8" (3mm) bevel adjustment in 2" (51mm).
• 6-Pin Brass Cylinder: Conventional 6-pin cylinder with L4 keyway and 0-bitted configuration; includes two nickel silver standard keys. Security cylinders available via Quick Codes.
• 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.
• 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: 1 Year Limited warranty for added confidence and protection.

Technical Specifications

• Subcategory: Deadlocks
• Product Group: Mechanical Locks
• Series: DL4100 Series
• 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: E6080 Series
• Product Subgroup: Mortise Locks and Trim
• Product Type: Mortise Deadlocks
• Keyed: Yes
• Commercial/Residential: Commercial
• Function Description: By key one side only, opposite side blank.
• Lock Type: Mortise
• Lock Function: Deadbolt
• Product Model: DL4111
• Product Function: Deadbolt
• 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 a heavy wrought steel lockcase featuring zinc dichromate finish and a steel deadbolt with hardened pin rated for a full 1" (25mm) throw. The DL4111 meets ANSI/BHMA E6080 Series standards and is backed by a 1 Year Limited warranty, providing confidence for commercial door hardware installations. Engineered for demanding commercial applications where dependable security performance and broad keying flexibility are essential.