Medeco 100400H 6-Pin 1-1/8" Rim Cylinder with Horizontal/Vertical Tailpiece — High Security UL 437 Listed

Medeco 100400H 6-Pin 1-1/8" Rim Cylinder with Horizontal/Vertical Tailpiece — UL 437 Listed High Security

The Medeco 100400H is a heavy-duty, commercial-grade 6-pin rim cylinder measuring 1-1/8" and featuring a horizontal/vertical tailpiece for broad compatibility with auxiliary rim locks including surface-mounted deadbolts, night latches, panic devices, and jimmyproof locks (also known as vertical dropbolts or interlocking deadbolts). Constructed from brass and rated Grade 1, this cylinder is UL 437 listed for drill and pick resistance, delivering high-security performance for demanding commercial applications. Medeco's patented Medeco 4 (M4) design provides utility-patented key control, protecting against unauthorized key duplication while integrating seamlessly into existing hardware configurations.

Key Features

• 1-1/8" Rim Cylinder Format: Designed for use with auxiliary rim locks including surface-mounted deadbolts, night latches, panic devices, and jimmyproof/interlocking deadbolt locks for versatile installation options.
• 6-Pin Configuration: Features a 6-pin tumbler design for enhanced key combination security and superior pick resistance in high-traffic commercial environments.
• Horizontal/Vertical Tailpiece: Dual-orientation tailpiece accommodates a wide range of rim lock configurations, simplifying installation and retrofit applications.
• UL 437 Listed: Certified for drill and pick resistance, providing verified protection against physical attack methods including drilling, picking, and bumping.
• Patented Key Control (M4): Medeco 4 (M4) design offers utility-patented key control, protecting against unauthorized duplication and requiring a special key cutting machine and Medeco-specific key blanks.
• Sidebar Anti-Pick & Bump Protection: M4 cylinders incorporate a sidebar mechanism that prevents key rotation until the key is elevated, rotated, and aligned correctly — providing robust protection against bumping and picking attacks.
• Master Key Compatibility: Can be masterkeyed into a system containing M4 BiLevel cylinders for flexible key hierarchy management.
• Brass Construction: Heavy-duty brass substrate delivers long-lasting durability and corrosion resistance suited for Grade 1 commercial applications.
• Broad Hardware Compatibility: M4 cylinders are available in a wide variety of formats, retrofitting most hardware on the market today without requiring full hardware replacement.

Certifications & Compliance

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

Technical Specifications

• Product Group: Parts and Accessories
• Cylinder and Keyways: 6Pin
• Commercial/Residential: Commercial
• Grade: Grade 1
• Duty Level: Heavy Duty
• Product Model: 100400
• Product Category: Parts and Accessories
• Product Substrate: Brass
• Department: Door Hardware

Typical Applications

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

Why Medeco 100400?

Medeco rim cylinders are engineered to the highest standards of physical security, combining brass construction, a 6-pin tumbler system, and UL 437 listing for drill and pick resistance into a single Grade 1 commercial solution. The proprietary M4 sidebar mechanism and patented key control technology ensure that only authorized keys can operate the cylinder, making the Medeco 100400H an ideal choice for facilities where access control integrity and long-term security are non-negotiable.