Corbin Russwin CL3151 Entrance/Office Grade 1 Vandal Resistance Cylindrical Lever Lock

Corbin Russwin CL3151-KEYED Entrance/Office Grade 1 Cylindrical Lever Lock with Vandal Resistance and T-Zone Construction

Patented T-Zone Construction for Commercial-Grade Security and Durability

The Corbin Russwin CL3151-KEYED is a Grade 1 keyed cylindrical lever lock engineered for Entrance/Office applications (ANSI function F109) in high-demand commercial environments. Designed for doors 1-3/4" to 2" thick with a 2-3/4" backset, this lockset features a deadlocking latchbolt operable by lever from either side, with a push turn button that controls the outside lever—requiring key access when engaged. The CL3100 Series’ patented T-Zone construction interlocks the aligning and latch tubes to form a rugged torque-resistant “T” in the critical twist area, tested to over 15 million cycles and exceeding ANSI/BHMA A156.2 Series 4000 Grade 1 standards by 15 times. The product substrate is steel with zinc dichromate treatment for corrosion resistance, and it carries a fire rating for added code compliance.

Professional Features & Benefits

• Door Thickness Compatibility: Designed for 1-3/4" to 2" doors with a 2-3/4" backset, accommodating standard commercial door preparations.
• Exceptional Cycle Durability: T-Zone construction tested to over 15 million cycles, exceeding ANSI/BHMA A156.2 Series 4000 Grade 1 standards by 15 times for long-term reliability in high-traffic applications.
• Vandal-Resistant T-Zone Construction: Patented interlocking of the lockbody and latch tubes creates a rugged torque-resistant “T” in the critical twist area, providing strength and durability far exceeding Grade 1 standards.
• Versatile Function Control: Pushing the turn button locks the outside lever (freewheeling); pushing in and turning the button requires key at all times outside; turning the inside lever unlocks the outside lever unless the button is in the locked-and-turned position. Inside lever always free.
• Conventional 6-Pin Cylinder: Includes two nickel silver keys; integrates into most existing facility key systems and accepts Schlage® LFIC. Several security key systems available including Access 3® and Pyramid.
• ANSI Curved Lip Strike Included: Strike measures 4-7/8" x 1-1/4" x 1-1/4" lip to center for reliable latchbolt engagement.
• Anti-Microbial Option Available: Available with Microshield® antimicrobial coating across 11 hardware finishes, including the most common 626 Satin Chrome finish.
• Sustainable Construction: Made from 68% post-consumer recycled content as per LEED MR credit 4, supporting green building initiatives.
• Manufacturer Warranty: 7 Year Limited warranty for added confidence and protection.

Technical Specifications

• Subcategory: Cylindrical Locks
• Product Group: Mechanical Locks
• Series: CL3100 Series
• Grade: Grade 1
• Keyed Function: Single Cylinder
• Standard Cylinder: Conventional 6-pin Cylinder, L4 Keyway
• Standard Latch: Deadlatch - Square corner front, 2-1/4" x 1-1/8", 2-3/4" backset
• Standard Strike: ANSI Curved Lip 1-1/4" Lip Length
• Warranty: 7 Year Limited
• ANSI/BHMA: F109
• Product Subgroup: Bored Locksets
• Product Type: Leversets
• Keyed: Yes
• Commercial/Residential: Commercial
• Function Description: Deadlocking latchbolt (either side). Freewheeling lever action determined by push turn button (engaged vs engaged + turned vs disengaged). Use of outside key required in engaged + turned. Inside lever always free.
• Lock Type: Cylindrical
• Handle Type: Lever
• Lock Function: Entrance/Office
• Product Attribute: Cylindrical Locks
• Product Model: CL3151
• Product Function: Entrance/Office
• Door Hand Direction: Non-Handed
• Door Thickness Range: 1-3/4" to 2"
• Fire Rating: Yes
• Product Category: Mechanical Locks
• Product Substrate: Steel, Zinc dichromated for corrosion resistance
• Backset (Distance): 2-3/4"
• Department: Door Hardware

Professional Applications

• Commercial Office Buildings
• Educational Facilities – K-12 and Universities
• Healthcare Institutions and Hospitals
• Retail Establishments
• High-Traffic Public Buildings
• Industrial and Institutional Facilities
• Multi-Tenant Commercial Properties

Anti-Microbial Option

The Corbin Russwin CL3100 Series is available with Microshield® antimicrobial coating across 11 hardware finishes, making it an ideal choice for healthcare, educational, and high-contact environments where hygiene and surface protection are a priority.

Why Choose Corbin Russwin Quality?

Corbin Russwin CL3100 Series cylindrical lever locks deliver professional-grade reliability through patented T-Zone construction tested to over 15 million cycles—exceeding ANSI/BHMA A156.2 Series 4000 Grade 1 standards by 15 times. Built from steel with zinc dichromate corrosion resistance and backed by a 7 Year Limited warranty, these locksets are engineered for demanding commercial applications where dependable performance and long-term durability are essential. With 18 available functions, 11 finish options, and compatibility with most standard 161 cylindrical door preps, the CL3100 Series offers exceptional versatility for any commercial installation.