Medeco 12028006-20-G3 Biaxial ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$75.48
$65.71
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Medeco 12028006-20-G3 Biaxial Cylinder Plug for Maxum Deadbolt, 6-Pin, G3 Keyway, Antique Nickel

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Model: 12028006-20-G3

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

$75.48
$65.71
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Medeco 12028006-20-G3 Biaxial Cylinder Plug for Maxum Deadbolt, 6-Pin, G3 Keyway

The Medeco 12028006-20-G3 is a genuine replacement Biaxial cylinder plug engineered specifically for the Medeco Maxum Deadbolt (excluding Captive models). This precision-machined 6-pin plug features the G3 keyway and is finished in Antique Nickel, making it a direct-fit replacement component for maintaining the high-security performance that Medeco Maxum installations demand. Designed for commercial-grade applications, this cylinder plug preserves the patented Biaxial pin tumbler technology that makes Medeco locks among the most pick-resistant and key-control-oriented products available.

Key Features

  • Biaxial Pin Technology: Features Medeco's patented Biaxial design, requiring keys cut to both vertical height and rotational angle for superior pick resistance and enhanced security.
  • 6-Pin Configuration: Six-pin tumbler layout provides an expanded key combination matrix, reducing the risk of key duplication and unauthorized entry.
  • G3 Keyway: Configured with the G3 keyway for precise key compatibility, verify keyway match before installation to ensure proper operation.
  • Maxum Deadbolt Compatibility: Designed as a direct replacement plug for the Medeco Maxum Deadbolt line, excluding Captive models, ensuring a factory-accurate fit.
  • Antique Nickel Finish: Finished in Antique Nickel for an aesthetically consistent replacement that matches existing Maxum Deadbolt hardware.
  • Commercial-Grade Replacement Part: Classified as a commercial replacement component within the Medeco Tools, Parts and Accessories category for professional locksmith and security applications.

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: 12028006-20-G3
  • Features: Medeco Tools, Parts and Accessories

Typical Applications

  • Commercial Office Buildings Requiring High-Security Lock Maintenance
  • Educational Facilities with Medeco Maxum Deadbolt Installations
  • Healthcare Institutions Maintaining Key-Control Security Systems
  • Government and Municipal Buildings with Restricted Keyway Programs
  • Retail Establishments Upgrading or Servicing Medeco Hardware
  • Multi-Tenant Residential Properties with Commercial-Grade Deadbolt Systems
  • Professional Locksmith and Security Service Applications

Why Medeco Maxum?

Medeco Maxum components are engineered to uphold the brand's reputation for patented Biaxial pin tumbler security, offering a level of pick resistance and key control that sets a commercial standard. By using genuine Medeco replacement parts such as this 6-pin G3 keyway cylinder plug, installers and facilities managers can ensure that serviced locks continue to perform to original factory specifications, preserving security integrity without compromise.

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:
12028006-20-G3
Features:
Medeco Tools, Parts and Accessories

Medeco 12028006-20-G3 – Frequently Asked Questions

1) Will the Medeco 12028006-20-G3 plug fit a Maxum deadbolt?
It's built as a direct replacement plug for the Medeco Maxum deadbolt line, with one exception: Captive models are excluded. If the deadbolt you're servicing is a Captive Maxum, this plug is not the right part. For any other Maxum, it drops in as a factory-accurate fit.
2) What keyway and pin count does this Medeco replacement plug come in?
Six-pin, G3 keyway. Both have to match the system you're servicing: a G3 plug only accepts keys cut for the G3 keyway, and a 6-pin plug pairs with 6-pin keys and bible. If your Maxum is running a different Medeco keyway or a 5-pin setup, this is not the plug for it.
3) Is this a whole cylinder or just the plug?
Plug only. You get the machined plug body for the Maxum deadbolt, not a complete cylinder assembly, so pins, springs, cam and housing come from the lock you're servicing or are ordered separately. This is a locksmith-level service part, not a drop-in cylinder.
4) Can a Corbin Russwin 253K66 rim cylinder plug be used to rebuild a Medeco Maxum deadbolt?
No. The Medeco 12028006-20-G3 is a Biaxial 6-pin plug with the G3 keyway built specifically for the Medeco Maxum deadbolt, excluding Captive models, and it carries the Biaxial pin tumbler geometry that requires keys cut to both height and angle. The Corbin Russwin 253K66 is a 3000 rim cylinder plug, a different manufacturer's plug for a rim cylinder housing and a different keying system. Rebuilding a Maxum deadbolt to factory specification means staying with the Medeco Biaxial plug.
5) I need a plug for a mortise cylinder, not a deadbolt - what should I be looking at instead of the Medeco 12028006-20-G3?
The Medeco 12028006-20-G3 is dedicated to the Medeco Maxum deadbolt line, excluding Captive models, so it is not the part for a mortise cylinder. For a mortise application, Corbin Russwin offers the 121K11-D2 and 121K11-L4, both Grade 1 1000 Series mortise cylinder plug-only parts, differing in keyway designation, D2 versus L4. Confirm the keyway your existing system is keyed to before ordering either.
6) Does replacing the plug keep the Medeco Biaxial security intact?
Yes. The plug carries Medeco's patented Biaxial pin tumbler design, where keys are cut to both vertical height and rotational angle. That's where the pick resistance and key control live, so swapping in this genuine plug keeps the serviced lock performing to the original factory spec rather than downgrading it to a standard pin tumbler.
7) What finish is this Medeco Maxum cylinder plug and will it match my existing hardware?
It comes in 620 Antique Nickel, the only finish offered on this plug. On a Maxum deadbolt the plug face is the visible part, so if the rest of your trim is a different finish (satin chrome, bronze) the face will read as a mismatch even though it works fine mechanically.
8) Can I use this Medeco plug in a Corbin Russwin or other brand cylinder?
No. Medeco Biaxial plugs are keyway and platform specific to Medeco, and this one is machined for the Maxum deadbolt. For Corbin Russwin work, ZenSupply carries brand-matched plugs such as the 121K11-D2 and 121K11-L4 mortise cylinder plugs for the 1000 Series, and the 253K66 rim cylinder plug for 3000 Series rim cylinders.
9) What is the difference between a cylinder plug and a cylinder plug retainer?
They are two different parts of a cylinder rebuild. The Medeco 12028006-20-G3 is the cylinder plug itself - the rotating pin-tumbler core that accepts the key, here a 6-pin Biaxial plug in the G3 keyway. A retainer such as the Corbin Russwin 219F88-8 Grade 1 cylinder plug retainer is the small component that holds a plug in its shell. If the key turns but the plug is loose or backing out, the retainer is the part in question; if the keying or pinning is the problem, the plug is.
10) Our facility is standardizing on one keyway across deadbolts and mortise locks - can I mix the Medeco Maxum plug with Corbin Russwin plugs?
No, they are separate keying systems. The Medeco 12028006-20-G3 uses the Medeco G3 keyway with patented Biaxial pinning, where keys are cut to both vertical height and rotational angle. The Corbin Russwin 121K11-D2 and 121K11-L4 mortise plugs are keyed to Corbin Russwin D2 and L4 keyways respectively. A single key will not operate across the two brands, so standardize within one manufacturer's keyway program.
11) Is this part suitable for a commercial restricted keyway program?
Yes, it's a commercial-grade component intended for facilities running key control. Because G3 is a specific Medeco keyway, plugs have to be ordered and keyed to the program you already hold, which is what keeps duplication controlled across offices, schools, healthcare and government buildings on Maxum hardware.
12) Is there a simpler plug option than the Medeco Biaxial for a low-traffic opening?
If the opening does not require Medeco's patented Biaxial pick resistance and key control, a conventional plug is an option - for example the Corbin Russwin 253K66 3000 rim cylinder plug for rim applications, or the 121K11-D2 Grade 1 1000 Series mortise plug for mortise cylinders. These are standard pin tumbler plugs rather than angle-cut Biaxial. Choose by the cylinder housing you actually have: the Medeco 12028006-20-G3 fits only the Maxum deadbolt, excluding Captive models.
How fast can I get the Medeco 12028006-20-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 12028006-20-G3 come with a warranty?
Absolutely. The Medeco 12028006-20-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 12028006-20-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
Why buy the Medeco 12028006-20-G3 from ZenSupply?
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