Schlage L462 Double Cylinder Lock

The Schlage L462 is a double-cylinder small case mortise deadbolt from the Schlage L400 Series, certified to ANSI/BHMA A156.36 Grade 1 and UL-cUL listed for 3-hour fire doors under UL10C and CAN/ULC-S104. The L462 has a keyed cylinder on both the exterior and interior sides. There is no thumbturn, no lever, and no knob on either face. The only way to throw or retract the deadbolt is by key from either side. American Locksets is an authorized Allegion Schlage dealer stocking the L462 with same-day shipping and free shipping on all orders over $300.

Schlage L462 Double Cylinder Deadbolt: Function ANSI E06061

The L462 operates on ANSI Function E06061: key cylinder on both sides, no levers, deadbolt only. The deadbolt is thrown or retracted by key from either the exterior or interior face. This is the Schlage commercial double cylinder mortise deadbolt, and it is fundamentally different from the L460 (cylinder exterior, thumbturn interior) because the interior side requires a key for both locking and unlocking rather than a thumbturn.

Life safety notice that specifiers and facilities managers must understand: Double cylinder locks on any door in any structure used for egress are a life safety hazard in emergencies where occupants may not have a key. Schlage states this warning on every L462 product. Installation must comply with all applicable local codes, NFPA 101, and IBC egress requirements. In most jurisdictions, double cylinder deadbolts on required egress doors are prohibited or restricted to specific circumstances. Verify code compliance with the local authority having jurisdiction before specifying the L462 on any egress opening.

Schlage L462 Specifications

• Function: ANSI E06061. Double cylinder. Key both sides. Deadbolt only, no latch function

• ANSI Certification: ANSI/BHMA A156.36 Grade 1. ANSI A156.5 Grade 1

• Fire Rating: UL-cUL listed for 3-hour fire doors. UL10C and CAN/ULC-S104. Listed for A-label single doors 4 x 10 feet and pairs 8 x 10 feet. F mark and UL symbol on latch front confirm listing

• Deadbolt: 1 inch (25mm) throw, stainless steel

• Latch: 3/4 inch (19mm) throw stainless steel with anti-friction tongue

• Strike: 1-1/8 inch x 3-1/2 inch (29mm x 89mm) with dust box, standard

• Case Material: Cold-rolled steel (CRS) with zinc dichromate plating

• Case Size: 4-7/16 inch x 3-5/8 inch x 1 inch (113mm x 92mm x 25mm)

• Door Thickness: 1-3/4 inch (44mm) standard minimum. 1-3/8 inch to 2-1/2 inch optional range

• Cylinder: 6-pin, C123 keyway standard. Deeper retainer groove for security against wrenching and pullout. All cylinders backward compatible

• Cylinder Options: Standard P (conventional), B (7-pin SFIC prep, less core), J (LFIC, less full size interchangeable core), L (less cylinder)

• Handing: Non-handed

• Trim: No escutcheon available on L400 small case for standard 1-3/4 inch doors

Schlage Double Cylinder Deadbolt: Where This Gets Specified

Despite the life safety restriction on egress doors, the L462 is correctly specified on several types of openings that do not serve as required means of egress. Non-egress doors between secure and non-secure zones in institutional settings, storage and utility areas that require key control on both sides to prevent unauthorized entry from either direction, doors between secured program areas in corrections or behavioral health facilities where the interior key requirement is a deliberate security design element, and auxiliary locks on service entrances or restricted access corridors that have separate egress paths are all legitimate L462 applications.

The L462 is also the correct specification when the L460 thumbturn configuration is not acceptable because the inside thumbturn presents a manipulation vulnerability. On high-security interior doors where the interior side must be controlled the same way the exterior is, a double cylinder is the deliberate choice.

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