Medeco Maxum Residential Double Cylinder Deadbolt, DL Keyway

Medeco® Maxum® Residential Deadbolt – UL 437 Certified Pick-Proof Deadbolt

The Medeco Maxum® residential deadbolt is a leading choice in high-security hardware, combining exceptional physical resistance with patented key control. Designed to withstand forced attacks, covert bypass methods, and unauthorized key duplication, this pick proof deadbolt is UL 437 listed and BHMA Grade 1 certified—making it ideal for homeowners who demand uncompromising protection.

Built with hardened steel inserts, rotating pins, and a heavy-gauge tubular steel housing, the Maxum deadbolt is designed to resist drilling, prying, bumping, and kicking, while also providing control over who can duplicate your keys.

Now Featuring: Medeco Double Cylinder Deadbolt Options

Available in both single and double cylinder configurations, the Maxum allows for secure key operation from both sides of the door. The Medeco double cylinder deadbolt is ideal for situations where glass windows or sidelights are present near the lock, preventing intruders from simply reaching in and unlocking from the inside.

M4 and Medeco M3 Compatibility

The Maxum is compatible with Medeco's advanced key systems:

• Medeco 4 (M4) cylinders offer patent-protected key control, resistance to 3D key duplication, and superior mechanical security.

• Medeco M3 cam lock compatibility ensures master keying integration with existing high-security infrastructure, making the Maxum an excellent addition to comprehensive systems.

Key Features

• UL 437 listed pick proof deadbolt for drill and pick resistance

• Grade 1 certified under ANSI/BHMA A156.36

• Hardened 1” steel bolt with a steel shroud for ice pick and crowbar attack resistance

• Special angle cut keys and restricted blanks available only through Medeco-authorized service centers

• Master keying support for large, flexible key systems (M4, M3, BiLevel*, CLIQ**)

Technical Specs

• Fits doors from 1-3/8” to 2-1/2” thick

• Standard 2-1/8” crossbore and 1” edge bore (ANSI A115.13)

• Optional captive thumbturn version available for convertible egress security

Security Benefits

• Steel strike plate with 2” screws anchors deep into structural framing

• Dual protection against picking and bumping

• Key control assurance: Only you decide who gets key copies

• Increased key variation range enables expansive master key systems

Available Finishes

• 05 – Bright Brass

• 06 – Satin Brass

• 09 – Antique Brass

• 10 – Satin Brass Blackened

• 11 – Bright Bronze

• 12 – Satin Bronze

• 13 – Oil Rubbed Bronze

• 18 – Bright Nickel

• 19 – Satin Nickel

• 20 – Antique Nickel

• 22 – Black

• 24 – Dark Bronze

• 25 – Bright Chrome

• 26 – Satin Chrome

Applications

Perfect for:

• High-security residential doors

• Apartments and multi-unit buildings

• Properties requiring pick proof and bump resistant deadbolt solutions

• Sites needing key control integration with existing Medeco M3 cam lock or M4 systems

• Downloads:

• Maxum Deadbolt Brochure
• Maxum Deadbolt Template
• Maxum Deadbolt Instructions