Medeco 12029006-05-G3 Cylinder...
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$75.48
$65.71
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Medeco 12029006-05-G3 Cylinder Plug for Maxum Deadbolt, Captive Biaxial 6-Pin G3 Keyway

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Model: 12029006-05-G3

In Stock (leaves warehouse same day if ordered before 3pm ET)

$75.48
$65.71
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Medeco 12029006-05-G3 Cylinder Plug for Maxum Deadbolt, Captive Biaxial 6-Pin G3 Keyway

The Medeco 12029006-05-G3 is a precision-engineered replacement cylinder plug designed specifically for the Medeco Maxum Deadbolt. Featuring Medeco's renowned Biaxial pin technology with a 6-pin configuration, this captive cylinder plug operates on the restricted G3 keyway, delivering advanced key control and pick resistance in a commercial-grade replacement component. Finished in Bright Brass, this plug is a direct factory-specification part engineered to restore or upgrade Maxum Deadbolt cylinders to original performance standards.

Key Features

  • Biaxial Pin Technology: Medeco's signature Biaxial design requires keys to be cut to both the correct height and angle, dramatically increasing pick and bump resistance over standard cylinder plugs.
  • 6-Pin Configuration: The 6-pin layout provides an extensive key combination matrix, supporting robust master key systems and high-security key control programs.
  • Captive Design: The captive cylinder plug is engineered to remain securely retained within the deadbolt housing, preventing unauthorized removal and enhancing overall security integrity.
  • G3 Restricted Keyway: The G3 keyway is a Medeco-controlled, restricted profile that limits unauthorized key duplication, making it ideal for commercial facilities requiring strict key control.
  • Maxum Deadbolt Compatibility: Designed as a direct replacement component for Medeco Maxum Deadbolt assemblies, ensuring precise fit and factory-specification performance.
  • Bright Brass Finish: Finished in Bright Brass for a classic, professional appearance that complements a wide range of commercial door hardware.
  • Commercial-Grade Replacement Part: Classified as a commercial replacement part within Medeco's Tools, Parts and Accessories program, engineered to maintain the security performance of the original installation.

Certifications & Compliance

  • Commercial-Grade Product
  • Medeco Restricted G3 Keyway, Key Duplication Control

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Cylinder Plug
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 12029006-05-G3
  • Features: Medeco Tools, Parts and Accessories

Typical Applications

  • Commercial Office Buildings Requiring Key Control Programs
  • Educational Facilities with Master Key Systems
  • Healthcare Institutions Needing Restricted Keyways
  • Government and Municipal Buildings
  • Multi-Tenant Commercial Properties
  • Financial Institutions and Banks
  • Industrial Facilities with High-Security Access Requirements

Why Medeco Maxum?

Medeco cylinder plugs are built to the same exacting tolerances as original factory components, utilizing the proven Biaxial pin system that simultaneously evaluates key cut height and angle for superior resistance to picking, bumping, and unauthorized duplication. The restricted G3 keyway adds an additional layer of key control, making Medeco Maxum components a trusted choice for commercial security professionals who demand dependable, long-term performance in high-stakes environments.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Cylinder Plug
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
12029006-05-G3
Features:
Medeco Tools, Parts and Accessories

Medeco 12029006-05-G3 – Frequently Asked Questions

1) Will the Medeco 12029006-05-G3 plug fit any Medeco deadbolt, or only the Maxum?
It is built as a direct replacement plug for the Medeco Maxum deadbolt specifically. Ordering it for a Medeco mortise or rim cylinder is the wrong part. If your deadbolt is a Maxum and the cylinder is the captive-plug style, this is the matching component.
2) Can I key this Medeco plug into my existing G3 master key system?
Yes, provided your system runs the G3 keyway. This plug is a 6-pin Biaxial plug cut for the restricted G3 profile, so it pins to the same key bitting standard as the rest of a G3 Biaxial system and can be keyed alike or into masterkeying levels. If your building runs a different Medeco keyway, the plug will not accept those keys.
3) Is this a whole replacement cylinder or just the plug?
Just the plug, the rotating core that carries the pins and keyway. Shell, pins, springs, cam and tailpiece are not part of it, so a locksmith is expected to pin and assemble it into the Maxum cylinder. Peer parts work the same way, for example the Corbin Russwin 121K11-D2 is sold as a mortise cylinder plug only.
4) Is the Corbin Russwin 253K66 rim cylinder plug an alternative to the Medeco 12029006-05-G3?
No. The Medeco 12029006-05-G3 is a captive Biaxial 6-pin cylinder plug on the restricted G3 keyway built as a direct replacement component for the Medeco Maxum Deadbolt. The Corbin Russwin 253K66 is a 3000 series rim cylinder plug, so it belongs to a rim cylinder rather than a Maxum deadbolt cylinder. Choose the 253K66 when you are rebuilding a Corbin Russwin 3000 rim cylinder, and the 12029006-05-G3 when the cylinder is a Medeco Maxum.
5) What should I use to rebuild a mortise cylinder instead of a Maxum deadbolt plug?
For a mortise cylinder, Corbin Russwin offers the 121K11-D2 and 121K11-L4 Grade 1 1000 Series mortise cylinder plugs, supplied as plug only in two different keyway variants. The Medeco 12029006-05-G3 is specific to the Medeco Maxum Deadbolt and runs the restricted Medeco G3 keyway with Biaxial 6-pin construction, so it is the part for a Maxum cylinder rather than a 1000 Series mortise housing.
6) What does Medeco Biaxial mean for keying and key control on a deadbolt plug?
Biaxial pins are cut to both a height and an angle, so a key must match on two axes to turn the plug. That raises pick and bump resistance over a standard pin-tumbler plug, and because G3 is a Medeco-restricted profile, blanks and duplication are controlled rather than available over the counter. It's the reason this part shows up in office, school, healthcare, and financial facilities running formal key control.
7) Why is the plug described as captive, and does that change how I service the cylinder?
Captive means the plug is retained in the deadbolt housing rather than pulling free, which is a security feature against plug removal attacks. Practically, servicing is a bench job on the cylinder, not something you pop out at the door face.
8) I need a cylinder plug but my hardware isn't Medeco Maxum. What else is there?
Match the plug to the cylinder family you actually have. For Corbin Russwin mortise cylinders in the 1000 Series, the 121K11 plug is offered in D2 and L4 keyways; for a Corbin Russwin 3000 rim cylinder, the 253K66 rim plug is the corresponding part, and the 219F88-8 is the plug retainer rather than a plug. None of those interchange with a Medeco Maxum, and none carry the Biaxial angled-cut system.
9) Is this plug meant for commercial use or residential doors?
Medeco lists it as a commercial replacement part within its Tools, Parts and Accessories program. It works on a home deadbolt if that deadbolt is a Maxum, but the G3 restricted keyway means a homeowner can't get keys copied at a hardware store, which is the point in a managed facility and an inconvenience in a house.
10) If I want two different keyway options in a mortise plug, what are my choices versus the Medeco G3 plug?
Corbin Russwin lists the 1000 Series mortise cylinder plug in the 121K11-D2 and 121K11-L4 versions, letting you match an existing D2 or L4 Corbin Russwin keyway. The Medeco 12029006-05-G3 is offered on the restricted G3 Medeco keyway, which is a controlled profile intended for facilities running strict key duplication control, and it is finished in 605 Bright Brass.
How fast can I get the Medeco 12029006-05-G3 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 12029006-05-G3 come with a warranty?
Absolutely. The Medeco 12029006-05-G3 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 12029006-05-G3?
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
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