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Medeco Maxum Double Cylinder Residential Deadbolt with High-Security Key Control
The Medeco Maxum Double Cylinder Residential Deadbolt delivers industry-leading physical security and key control for demanding residential applications. Featuring the Medeco 4 (M4) patent-pending design, this UL 437 Listed and BHMA A156.5 Grade 1 Certified deadbolt protects against unauthorized key duplication, bumping, picking, drilling, wrenching, and kicking attacks. A solid 1" hardened steel bolt housed in heavy-gauge tubular steel provides maximum resistance to physical attack, and the unit fits doors 1 3/8" to 2 1/2" thick with a standard 2 1/8" crossbore and 1" edge bore (ANSI A115.13 prep).
Key Features
- High-Security Bolt Construction: Solid 1" hardened steel bolt and bolt-throwing mechanism surrounded by a heavy-gauge tubular steel housing for maximum resistance to crowbar and physical attacks.
- Door Thickness Compatibility: Fits doors 1 3/8" to 2 1/2" thick with a standard 2 1/8" crossbore and 1" edge bore (ANSI A115.13 prep) for straightforward installation.
- Medeco 4 (M4) Key Control: Patent-pending key control technology protects against unauthorized duplication of keys, including deterrence against 3D-printed key copies or blanks, ensuring only authorized individuals can duplicate keys.
- Drill and Pick Resistance: Hardened steel inserts and rotating pins provide drill and pick resistance per UL 437 standard; solid-brass construction with strategically placed drill pins offers maximum protection.
- Steel Shroud Over Bolt: Steel shroud over the bolt protects against "ice pick" type attacks, adding an additional layer of physical security beyond the bolt itself.
- High-Security Strike Plate: Special box-design strike plate secured with 2" screws that anchor directly to the building structure behind the frame, preventing kick-in type attacks.
- Master Keying Capabilities: M4 deadbolts can be master keyed into systems that include M4, M4 BiLevel, and M4 CLIQ keys and cylinders, supporting extremely large master key systems.
- Special Angle Cut Keys: Requires a special key cutting machine and Medeco-specific blanks; angled cuts plus fore and aft positioning dramatically increase key combinations for large master key systems.
- Available Finishes: Offered in 14 finishes including Bright Brass (05), Satin Brass (06), Antique Brass (09), Satin Brass Blackened (10), Bright Bronze (11), Satin Bronze (12), Oil Rubbed Bronze (13), Bright Nickel (18), Satin Nickel (19), Antique Nickel (20), Black (22), Dark Bronze (24), Bright Chrome (25), and Satin Chrome (26).
Certifications & Compliance
- UL 437 Listed — Protection against picking and drilling attacks
- BHMA A156.5 Grade 1 Certified Deadbolt
- ANSI/BHMA A156.30 Certification — High-security key control and unauthorized duplication protection
- ANSI/BHMA A156.36 Grade 1 Listed Cylinders
- ANSI A115.13 Door Prep Compatibility (2 1/8" crossbore, 1" edge bore)
Technical Specifications
- Series: Maxum® Residential Deadbolt
- Cylinder Technology: Medeco 4 (M4)
- Pinning: 5 or 6-Pin
- Keyway: Factory-specified
- Certification: UL 437 Listed; ANSI/BHMA A156.36 Grade 1 (M4)
- Bolt: 1" solid hardened-steel bolt in heavy-gauge steel housing
- Door Thickness: Fits doors 1-3/8" to 2-1/2" thick
- Door Prep: Standard 2-1/8" crossbore, 1" edge bore (ANSI/BHMA A115.13)
- Construction: Solid-brass cylinder construction with hardened steel inserts
- Warranty: 2-year manufacturer's warranty
Typical Applications
- Residential Entry Doors Requiring High-Security Protection
- Single-Family Homes with Key Control Requirements
- Multi-Unit Residential Properties with Master Key Systems
- Vacation and Secondary Residences Requiring Restricted Key Duplication
- Home Offices and Private Studios
- Upscale Residential Communities and Gated Properties
- Any Application Requiring Grade 1 Deadbolt Performance with Anti-Duplication Key Control
Why Medeco?
Medeco Maxum deadbolts are engineered with solid-brass construction, hardened steel inserts, rotating pins, and a 1" hardened steel bolt in heavy-gauge steel housing — all tested and certified to UL 437 and BHMA A156.5 Grade 1 standards. The Medeco 4 (M4) patent-pending design adds multiple dimensions of key security, including protection against 3D-printed key duplication, making the Maxum one of the most comprehensively protected residential deadbolts available for applications where access control and physical security are paramount.
Manufacturer Resources
Medeco Product Catalog
Product Specs
- Product Group:
- Mechanical Locks
- Series:
- Maxum Series
- Product Subgroup:
- Bored Locksets
- Product Type:
- Deadbolts
- Subcategory:
- Deadbolts
- Cylinder and Keyways:
- DL
- Keyed Function:
- Double Cylinder
- Commercial/Residential:
- Residential
- Keyed:
- Yes
- Lock Function:
- Deadbolt
- Product Function:
- Double Cylinder
- Product Category:
- Mechanical Locks
- Department:
- Door Hardware
Medeco 11TR623-26 – Frequently Asked Questions
How fast can I get the Medeco 11TR623-26 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Medeco 11TR623-26 come with a warranty?
Absolutely. The Medeco 11TR623-26 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Medeco 11TR623-26?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Medeco 11TR623-26 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.
