Corbin Russwin CL3157 Storeroom/Closet Grade 1 Vandal Resistance Cylindrical Lever Lock

Corbin Russwin CL3157-KEYED Grade 1 Storeroom/Closet Cylindrical Lever Lock with Vandal Resistance and T-Zone Construction

Commercial-Grade Keyed Cylindrical Lever Lock for High-Traffic Storeroom and Closet Applications

The Corbin Russwin CL3157-KEYED is a patented Grade 1 cylindrical lever lock engineered for storeroom and closet applications (ANSI function F86) in demanding commercial, industrial, and institutional environments. Featuring the proprietary T-Zone construction that interlocks the aligning and latch tubes to form a torque-resistant "T" in the critical twist area, this lock is tested to over 15 million cycles — exceeding ANSI/BHMA A156.2 Series 4000 Grade 1 standards by 15 times. Designed for door thicknesses of 1-3/4" to 2" with a 2-3/4" backset, the CL3157-KEYED delivers a deadlocking latchbolt operated by key in the outside lever or by rotating the inside lever, with the inside lever always free for safe egress. The lock body is constructed from steel with zinc dichromate treatment for corrosion resistance, and the non-handed design retrofits most standard 161 cylindrical lock door preparations.

Professional Features & Benefits

• ANSI F86 Storeroom/Closet Function: Deadlocking latchbolt activated by key in outside lever or by rotating inside lever; lever handle is freewheeling in locked position while inside lever remains always free for safe egress.
• Exceptional Durability — 15 Million Cycles: T-Zone construction tested to over 15 million cycles, exceeding ANSI/BHMA A156.2 Series 4000 Grade 1 standards by 15 times for unmatched long-term reliability in high-traffic applications.
• Door Thickness & Backset Compatibility: Designed for 1-3/4" to 2" door thickness with a standard 2-3/4" backset, accommodating a wide range of commercial door configurations.
• Vandal-Resistant T-Zone Construction: Unique interlocking design between the lockbody and latch provides strength and durability far exceeding Grade 1 standards, resisting forced entry and vandalism in high-use environments.
• Standard Cylinder & Strike: Includes a Conventional 6-pin Cylinder (L4 Keyway) and an ANSI Curved Lip strike measuring 4-7/8" x 1-1/4" with 1-1/4" lip to center, plus two nickel silver keys.
• Corrosion-Resistant Construction: Lock body manufactured from steel with zinc dichromate treatment, ensuring long-lasting performance in demanding commercial environments.
• Flexible Configuration Options: 18 functions available (most requiring only 2 parts to change function); non-handed design retrofits most standard 161 cylindrical lock door preps; integrates into most existing key systems and accepts Schlage® LFIC.
• Sustainable & Finish Options: Made from 68% post-consumer recycled content per LEED MR credit 4; available in 11 hardware finishes and Microshield® antimicrobial coating. Most common configuration: NZD Newport lever in 626 Satin Chrome finish.
• 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
• Lock Function Description: Deadlocking latchbolt by key in outside lever or by rotating inside lever. Lever handle is freewheeling in locked position. Inside lever always free.
• 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: F86
• Product Subgroup: Bored Locksets
• Product Type: Leversets
• Keyed: Yes
• Commercial/Residential: Commercial
• Lock Type: Cylindrical
• Handle Type: Lever
• Lock Function: Storeroom/Closet
• Product Attribute: Cylindrical Locks
• Product Model: CL3157
• Product Function: Storeroom
• 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 — Storeroom and Closet Access Control
• Healthcare Institutions and Hospitals
• Educational Facilities — K-12 Schools and Universities
• Public Buildings and Government Facilities
• Retail Establishments and Back-of-House Storage
• Industrial and Institutional High-Traffic Areas
• Multi-Tenant Residential and Mixed-Use Properties

Anti-Microbial Option

The Corbin Russwin CL3100 Series is available with Microshield® antimicrobial coating, providing an additional layer of protection for high-touch surfaces in healthcare, educational, and institutional environments where hygiene is 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. The steel body with zinc dichromate corrosion resistance, 7 Year Limited warranty, and compatibility with most existing key systems and standard 161 door preps make this lock a trusted choice for demanding commercial, industrial, and institutional applications where strength, durability, and quiet operation are essential.