Corbin Russwin CL3357 Grade 1 Storeroom/Closet Extra Heavy-Duty Cylindrical Lever Lock

Corbin Russwin CL3357-KEYED Extra Heavy-Duty Cylindrical Lever Lock | Storeroom/Closet Function, Grade 1, Non-Handed

Commercial-Grade Storeroom Security with Lever Release™ Vandal Resistance

The Corbin Russwin CL3357-KEYED is an extra heavy-duty, Grade 1 cylindrical lever lock engineered for storeroom and closet applications (ANSI function F86) in demanding commercial, industrial, and institutional environments. The deadlocking latchbolt is operated by key in the outside lever or by rotating the inside lever, with the outside lever freewheeling in the locked position while the inside lever remains always free. Designed for doors with a thickness range of 1-3/4" to 2" and a 2-3/4" backset, this lockset features a conventional 6-pin cylinder, two nickel silver keys, and an ANSI curved lip strike measuring 4-7/8" x 1-1/4" x 1-1/4" lip to center. The most common configuration is the NZD Newport lever in 626 Satin Chrome finish. The substrate is steel, zinc dichromated for corrosion resistance, and the product carries a Fire Rating and a 7 Year Limited Warranty.

Professional Features & Benefits

• Grade 1 cylindrical lockset per ANSI/BHMA A156.2 Series 4000, Grade 1
• Lever Release™ design for vandal resistance — outside lever rotates freely when locked
• EZ-Install components significantly reduce installation time
• Independent return springs prevent lever sag
• 4 solid cast lever options (Armstrong, Newport, Princeton, Frascati)
• Anti-rotational through-bolts at 6 and 12 o'clock positions
• Accommodates 6 or 7-pin conventional cylinders and all keying levels
• CL3352 Classroom Intruder function: double-cylinder lockset, always-free egress
• Available with MicroShield® antimicrobial coating (suffix option code "C")
• CL33900 electrified option: fail safe and fail secure, 12 or 24VAC/VDC
• ElectroLynx® 8-pin connector on all electrified products
• Seven-year limited warranty (two-year for electrified)

Technical Specifications

• Grade: ANSI/BHMA A156.2 Series 4000, Grade 1
• Handing: Non-handed (except FZD trim)
• Door Thickness: 1-3/4" (44mm) 2" (51mm) standard; optional over 2" 2-1/4" (57mm)
• Backset: 2-3/4" (70mm) standard; optional 3-3/4" (95mm) and 5" (127mm)
• Latchbolt: Stainless steel, 1/2" (13mm) throw; optional 3/4" (19mm) fire latch
• Auxiliary Latchbolt: Deadlocking — prevents manipulation when door is closed
• Lock Chassis: Steel, zinc dichromated for corrosion resistance
• Front: Wrought brass, bronze, or stainless steel, 2-1/4" x 1-1/8"
• 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
• Electrified Voltage: 12VAC/DC or 24VAC/DC (CL33900 Series)
• Electrified Current: 250mA @ 12VAC/VDC; 150mA @ 24VAC/VDC, continuous duty solenoid
• Certifications: ANSI/BHMA A156.2 Grade 1; UL-cUL listed; ANSI A117.1 Accessibility; California State Fire Marshal
• Warranty: Seven-year limited (two-year for CL33900 electrified)

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 CL3300 Series cylindrical lever locks deliver professional-grade reliability through Grade 1 extra heavy-duty construction with steel, zinc dichromated substrates for corrosion resistance, and the proven Lever Release™ design for vandal resistance. The CL3357-KEYED is backed by a 7 Year Limited Warranty, providing long-term confidence for facility managers and security professionals. Engineered for demanding commercial, industrial, and institutional applications where dependable storeroom security and code-compliant performance are essential.