Sargent 465 Single Cylinder Deadlock – LA Keyway

The Sargent 465 Single Cylinder Deadlock is a heavy-duty commercial deadbolt designed for doors where key entry from one side and thumbturn operation from the other is required. Engineered to meet the demands of institutional, commercial, and multi-family applications, the 465 series delivers reliable, code-compliant dead-bolt security in a proven mortise-compatible format. This listing specifies the LA keyway, Sargent's standard open-conventional keyway, making it straightforward to integrate into existing Sargent-keyed facilities or new installations.

Function Overview

The Sargent 465 is a single cylinder deadlock — key operation from the outside cylinder projects and retracts the deadbolt, while a thumbturn on the inside provides manual control. This function corresponds to an ANSI/BHMA F17-style deadlock (key outside retracts and projects; thumbturn inside retracts and projects), making it well-suited for store doors, office entries, and any application requiring independent deadbolt control without a latch mechanism.

Because the deadlock operates the bolt independently of any latch, it is commonly used as a secondary or auxiliary lock on commercial entry doors, stairwell doors, and storage rooms where positive bolt engagement is required.

Key Features & Benefits

• Single cylinder with thumbturn: Key control from outside; convenient manual operation inside — ideal for offices, retail, and light institutional use
• LA Keyway: Open-conventional Sargent keyway; compatible with standard Sargent key systems and easily incorporated into existing master key programs
• Commercial-grade construction: Built to Sargent's commercial standards for durability in high-cycle door applications
• Deadlock (deadbolt-only) function: No latch bolt — the deadbolt operates independently, providing a positive mechanical lock without interference from a latch mechanism
• Mortise-format cylinder: Uses Sargent 40 Series mortise cylinder; upgrade paths available to higher-security cylinder options (DG1 patented keyway, DG2, DG3/UL437) without replacing the lock body
• Master keying compatible: LA keyway cylinders support standard Sargent master key system pinning for facilities requiring hierarchical key control

Typical Applications

• Commercial office and retail entry doors (secondary deadbolt)
• Stairwell and corridor doors requiring positive bolt engagement
• Storage rooms, server rooms, and utility spaces
• Multi-family residential and apartment building common doors
• Facilities expanding or maintaining an existing Sargent LA keyway system

Cylinder Upgrade Options

The Sargent 465 accepts standard Sargent 40 Series mortise cylinders. If higher key-control security is required, the cylinder can be upgraded to a Sargent DG1 (patented keyway) for duplication protection, or to DG2 / DG3 (UL 437 listed) for pick and drill resistance — without replacing the lock body. This modularity supports long-term facility key system management.

Technical Details