Corbin Russwin CL3510 Grade 2 Passage/Closet Heavy-Duty Cylindrical Lever Lock

Corbin Russwin CL3510 Heavy-Duty Grade 1 Cylindrical Lever Lock, Passage/Closet Function, Non-Keyed

Commercial-Grade Passage Security with ANSI/BHMA Grade 1 Performance

The Corbin Russwin CL3510 is a heavy-duty, non-keyed cylindrical lever lock engineered for passage and closet applications in demanding commercial environments. Rated to ANSI/BHMA Grade 1 and conforming to ANSI function F75, this lockset operates with latchbolt retraction by lever from either side, with both levers always free for unrestricted passage. Designed to accommodate door thicknesses of 1-3/8" to 1-3/4" with a standard 2-3/4" backset, the CL3510 delivers reliable, long-lasting performance across commercial, institutional, and multi-family applications. The chassis substrate is steel with zinc dichromate treatment for corrosion resistance, and the most common configuration features the NZD Newport lever in 626 Satin Chrome finish.

Professional Features & Benefits

• Grade 2 standard-duty lever lockset per ANSI/BHMA A156.2 Series 4000, Grade 2
• Lever Release freewheeling levers for vandal resistance
• Solid cast levers with no plastic inserts
• Thrubolts prevent chassis rotation; ensure alignment, smooth operation and long life
• Non-handed spring cassette prevents lever sag
• 1/2" throw latchbolt accommodates 7/8" and 1" edge bore preps
• 2-3/8", 2-3/4", 3-3/4" and 5" backsets available
• UL/cUL listed for 3-hour fire doors up to 4' x 10'
• 14 finishes plus MicroShield® antimicrobial options
• High Security and security key systems available (Access 3®, Pyramid)
• Five-year limited warranty

Technical Specifications

• Grade: ANSI/BHMA A156.2 Series 4000, Grade 2
• Door Prep: ANSI/BHMA A156.115
• Handing: Non-handed
• Door Thickness: 1-3/8" to 1-7/8" (35–48mm) standard; optional 2" 2-1/4" (57mm)
• Backset: 2-3/4" (70mm) standard; optional 2-3/8", 3-3/4", 5"
• Latchbolt: Stainless steel, 1/2" (13mm) throw
• Front: Wrought brass, bronze, or stainless steel, 2-1/4" x 1-1/8" (standard)
• Strike: Wrought brass or stainless steel, ANSI curved lip, 4-7/8" x 1-1/4" x 1-1/4" lip to center
• Cylinder: Brass, 6-pin L4 keyway, 0-bitted standard
• Minimum Stile: 4-1/2" (114mm)
• Certifications: ANSI/BHMA A156.2 Grade 2; UL/cUL 3-hour fire rating; ADA A117.1; NFPA 80; Windstorm/Hurricane certified
• Warranty: Five-year limited

Professional Applications

• Interior Office Corridors and Passage Doors
• Apartment Complexes and Multi-Family Residential Properties
• Convalescent and Elderly Care Facilities
• Hotels and Hospitality Establishments
• Restaurants and Food Service Facilities
• Retail Centers and Commercial Storefronts
• Educational and Institutional Buildings

Why Choose Corbin Russwin Quality?

Corbin Russwin CL3500 Series cylindrical lever locks deliver professional-grade reliability through solid cast lever construction, independent return springs, and a through-bolted chassis engineered to prevent rotation and maintain alignment over years of heavy use. The CL3510 carries ANSI/BHMA Grade 1 certification and is backed by a 7 Year Limited warranty, providing facility managers and specifiers with confidence in long-term performance. Built on a steel substrate with zinc dichromate corrosion resistance and designed for cross-series trim compatibility, the CL3510 is the dependable choice for commercial, institutional, and multi-family passage door applications.