Medeco CP-021121 Tailpiece Ret...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$21.23
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Medeco CP-021121 Tailpiece Retainer for Rim Cylinders with Screw-On Cap

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Model: CP-021121

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

$21.23
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Medeco CP-021121 Tailpiece Retainer for Rim Cylinders with Screw-On Cap

The Medeco CP-021121 is a purpose-built tailpiece retainer designed for use with Medeco rim cylinders, featuring a screw-on cap for secure and reliable component retention. This commercial-grade installation accessory ensures proper tailpiece positioning within rim cylinder assemblies, making it an essential replacement or supplemental part for maintaining the integrity of Medeco locking hardware. Engineered for professional installation environments, the CP-021121 upholds Medeco's standard for precision-crafted parts and accessories used in demanding commercial applications.

Key Features

  • Screw-On Cap Design: Provides a secure, stable retention method for the tailpiece within rim cylinder assemblies, minimizing the risk of component displacement during operation.
  • Rim Cylinder Compatibility: Specifically designed for use with Medeco rim cylinders, ensuring proper fit and function within compatible locking systems.
  • Commercial-Grade Construction: Built to Medeco's exacting standards for parts and accessories, suitable for demanding commercial door hardware applications.
  • Installation Accessory: Classified as an installation accessory within the Medeco parts and accessories line, supporting proper assembly and long-term performance of rim cylinder hardware.
  • Genuine Medeco Component: An authentic Medeco part, ensuring full compatibility and adherence to manufacturer specifications for Medeco locking systems.

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: Screw Pack
  • Parts and Accessories Type: Installation Accessories
  • Commercial/Residential: Commercial
  • Product Model: CP-021121
  • Features: Medeco Tools, Parts and Accessories

Typical Applications

  • Commercial Office Buildings with Medeco Rim Cylinder Locksets
  • Educational Facilities Maintaining Medeco High-Security Hardware
  • Healthcare Institutions Servicing Medeco Locking Systems
  • Government and Municipal Buildings with Medeco Security Hardware
  • Retail Establishments Requiring Rim Cylinder Component Replacement
  • Multi-Tenant Residential Properties with Commercial-Grade Locking Hardware
  • Industrial and Warehouse Facilities Servicing Existing Medeco Installations

Why Medeco CP-021121?

Medeco parts and accessories are engineered to the same exacting standards as their full locking systems, ensuring that every component, including the CP-021121 Tailpiece Retainer, delivers reliable, professional-grade performance. As a genuine Medeco installation accessory for rim cylinders, this screw-on cap retainer maintains the precision and security integrity that commercial installers and facility managers rely on. Choose Medeco genuine components to preserve the performance and compatibility of your existing Medeco hardware installations.

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:
Screw Pack
Parts and Accessories Type:
Installation Accessories
Commercial/Residential:
Commercial
Product Model:
CP-021121
Features:
Medeco Tools, Parts and Accessories

Medeco CP-021121 – Frequently Asked Questions

1) What does the Medeco CP-021121 tailpiece retainer actually do on a rim cylinder?
The CP-021121 holds the tailpiece in position inside a Medeco rim cylinder assembly. It uses a screw-on cap that threads onto the back of the cylinder, so the tailpiece stays seated and cannot drift out of position while the lock is being turned. It's the retaining hardware on the back of the cylinder, not the cylinder or the tailpiece itself.
2) Does the CP-021121 include a tailpiece, or just the retainer cap?
It's the retainer with the screw-on cap only. If your tailpiece is bent, worn, or the wrong length for the door thickness you're working with, you'll need to order that separately as a Medeco rim cylinder tailpiece.
3) Will the Medeco CP-021121 fit a mortise cylinder or a key-in-knob cylinder?
No. It's built for Medeco rim cylinders. Mortise cylinders use a cam on the back rather than a tailpiece and retainer, so this part has nothing to attach to. For a mortise application you want the correct Medeco mortise cam, not this retainer.
4) One of my Medeco rim cylinders keeps losing its tailpiece. Is this the fix?
That's the usual cause, yes. When the screw-on cap backs off or is missing, the tailpiece works its way out of the cylinder and the lock stops throwing the latch even though the key turns fine. Replacing the retainer with the CP-021121 puts the cap back on the cylinder and holds the tailpiece seated.
5) Can a Corbin Russwin ML2000 screw pack be used in place of the Medeco CP-021121 tailpiece retainer?
No. The Medeco CP-021121 is a tailpiece retainer with a screw-on cap that holds the tailpiece in position inside a Medeco rim cylinder assembly. The Corbin Russwin 429F31 and 433F77 are screw packs for ML2000 mortise lock escutcheons - the 429F31 for the N escutcheon and the 433F77 for the M and P escutcheons - so they supply mounting fasteners for trim, not a retaining cap for a rim cylinder tailpiece. They are not interchangeable.
6) Is this a genuine Medeco part or an aftermarket copy?
Genuine Medeco. It's sold as an authentic Medeco installation accessory, which matters on high-security cylinders where an off-spec retainer can leave the tailpiece with play or block the cylinder from seating flush in the rim device prep.
7) I need loose fasteners rather than a cylinder retainer - what should I order instead of the Medeco CP-021121?
If the job needs individual mounting fasteners, look at the Corbin Russwin line instead: the 425F86-8 is a flat screw in 8-32 x 3/8 inch, and the 206F57-8 is a strike combo screw for the ML2000. The Medeco CP-021121 is a different kind of part - a screw-on cap retainer that secures the tailpiece within a Medeco rim cylinder - so it will not serve as a general-purpose fastener.
8) Is the CP-021121 rated for commercial door hardware or is it a residential part?
Commercial. Medeco lists it as a commercial-grade component within its door hardware line, and it's the part locksmiths and facility maintenance crews pull when servicing rim cylinders on exit devices and rim locks in offices, schools, hospitals, and municipal buildings.
9) How is the Medeco CP-021121 ordered, as a single piece or a pack?
It ships as a screw pack under part number CP-021121, and it's a single ordering option, so there are no finish or size choices to specify. Order one per rim cylinder you're servicing.
10) If I am standardizing service parts across a facility, how does the Medeco CP-021121 differ from the Corbin Russwin 433F77?
Both are commercial service components, but they cover different hardware families. The Medeco CP-021121 is a genuine Medeco tailpiece retainer with a screw-on cap for Medeco rim cylinders, intended to keep the tailpiece correctly positioned in the cylinder assembly. The Corbin Russwin 433F77 is a screw pack for ML2000 M and P escutcheons. Facilities running both Medeco high-security cylinders and ML2000 mortise locks would stock each separately.
How fast can I get the Medeco CP-021121 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 CP-021121 come with a warranty?
Absolutely. The Medeco CP-021121 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 CP-021121?
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 CP-021121 from ZenSupply?
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