Medeco 105500T M3 Standard 6-Pin Mortise Cylinder, 2"–5" Length, Straight Cam, DL Keyway

Medeco 105500T M3 Standard 6-Pin Mortise Cylinder, 2"–5" Length, Straight Cam, DL Keyway

The Medeco 105500T is an M3 technology, 6-pin mortise cylinder engineered for high-security commercial applications. Available in lengths from 2" to 5" and featuring a straight cam configuration with DL keyway, this cylinder is designed to be threaded directly into other manufacturers' mortise lock cases, with a cam on the back operating the lock mechanism and a set screw securing the cylinder in place. Constructed from brass and rated Grade 1 Heavy Duty, the Medeco 105500T delivers UL 437-listed drill and pick resistance for demanding commercial environments.

Key Features

• Versatile Length Range: Available in 2" to 5" lengths to accommodate a wide variety of mortise lock case depths and door preparations.
• UL 437 Listed Security: Certified for drill and pick resistance, providing verified protection against physical attack including drilling, picking, and bumping.
• Patented Key Control: M3 technology protects against unauthorized duplication of keys, requiring a special key cutting machine and access to Medeco-specific blanks available in a variety of restrictions.
• Sidebar Picking & Bump Protection: The cylinder uses a sidebar mechanism that prevents key rotation until the key is elevated, rotated, and aligned in the correct position, offering robust protection against bumping and picking attacks.
• Straight Cam Configuration: Straight cam on the back of the cylinder operates the lock mechanism for reliable, consistent actuation in compatible mortise lock cases.
• Broad Hardware Compatibility: M3 cylinders are available in a wide variety of formats, retrofitting most hardware on the market today and designed to be screwed into other manufacturers' mortise lock cases.
• Master Keying Capability: Can be masterkeyed into a system containing M4 BiLevel for flexible key management across large facilities.
• Heavy-Duty Brass Construction: Manufactured from brass for long-term durability and corrosion resistance in high-traffic commercial applications.

Certifications & Compliance

• UL 437 Listed for Drill and Pick Resistance
• BHMA Grade 1
• Heavy Duty Commercial Rating

Technical Specifications

• Product Group: Parts and Accessories
• Cylinder and Keyways: DL Keyway, 6-Pin
• Commercial/Residential: Commercial
• Grade: Grade 1
• Duty Level: Heavy Duty
• Technology: M3
• Product Model: 105500T
• Product Category: Parts and Accessories
• Product Substrate: Brass
• Department: Door Hardware

Typical Applications

• Commercial Office Buildings
• Educational Facilities and Schools
• Healthcare Institutions and Hospitals
• Government and Municipal Buildings
• Retail Establishments
• Multi-Tenant Residential and Mixed-Use Properties
• Industrial and Warehouse Facilities

Why Medeco M3?

Medeco M3 mortise cylinders are built to the highest commercial security standards, combining UL 437-listed drill and pick resistance with patented key control technology that prevents unauthorized key duplication. Engineered from brass with a Grade 1 Heavy Duty rating, the 105500T is purpose-built for demanding commercial environments where physical security and key management integrity are non-negotiable.