Medeco 2051100 Key-in-Knob Cyl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$176.00
$150.85
Medeco Medeco 2051100 - 5 Pin Cylinder for Emtek Knobs MED-2051100

Medeco 2051100 Key-in-Knob Cylinder for Emtek Knobs - 5 Pin, Machined Brass

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Model: 2051100T-05-DLT
$176.00
$150.85
Selected Finish is

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

$176.00
$150.85
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Medeco 2051100 Key-in-Knob Cylinder for Emtek Knobs — 5 Pin, Machined Brass Construction

The Medeco 2051100 is a 5 Pin Key-in-Knob Cylinder engineered to retrofit Emtek knob-type cylindrical locksets, lever-type cylindrical locksets, padlocks, and bored-type auxiliary deadlatches and deadlocks. Constructed from durable machined brass components, this cylinder delivers the high-security performance Medeco is known for, including UL437-listed drill and pick resistance and utility patent-pending key control. Certified to ANSI A156.30 Level A and ANSI A156.5 Grade 1, it is purpose-built for demanding commercial applications where key control and physical strength are critical.

Key Features

  • High-Security Key Control: Utility patent-pending key control technology provides superior protection against unauthorized key duplication.
  • UL437 Listed: Certified for drill and pick resistance, meeting rigorous standards for high-security cylinder performance.
  • Durable Machined Brass Construction: All cylinder components are precision-machined from solid brass for long-lasting reliability in heavy-use commercial environments.
  • Broad Retrofit Compatibility: Designed to retrofit knob-type cylindrical locksets, lever-type cylindrical locksets, padlocks, and bored-type auxiliary deadlatches and deadlocks — no full lockset replacement required.
  • Industry-Leading Retrofit Range: Medeco offers over 100 different cylinder designs and tailpiece configurations, providing the largest retrofit capability in the industry.
  • Multiple Finish Options: Available in 14 finishes including Bright Brass, Satin Nickel, Oil Rubbed Bronze, Satin Chrome, Black, Dark Bronze, and more to match existing hardware aesthetics.
  • Commercial-Grade Quality: ANSI A156.5 Grade 1 certification assures consistent quality and performance for heavy-use commercial applications.

Certifications & Compliance

  • UL437 Listed — Drill and Pick Resistance
  • ANSI A156.30 Level A — Patent Protected Key Control and Physical Strength (M4, M3)
  • ANSI A156.5 Grade 1 — Consistent Quality for Heavy-Use Applications (M4/M4 BiLevel, M3)

Technical Specifications

  • Product Family: Key-in-Knob/Lever Cylinder
  • Pinning: 5-Pin
  • Compatible Hardware: Emtek Knobs
  • Certification: UL 437 Listed; ANSI/BHMA A156.30 (M4); ANSI/BHMA A156.5 Grade 1 (M4)
  • Construction: Durable machined brass components
  • Warranty: 2-year manufacturer's warranty

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Retail Establishments
  • Multi-Tenant Residential Properties
  • Industrial and Warehouse Facilities

Why Medeco?

Medeco cylinders are engineered to the highest security standards, combining precision-machined brass construction with UL437-listed drill and pick resistance and ANSI A156.30 Level A key control certification. With over 100 retrofit cylinder designs and tailpiece configurations, Medeco delivers unmatched versatility for commercial security upgrades without requiring complete lockset replacement — making the 2051100 an ideal choice for professionals who demand both security and installation efficiency.

Manufacturer Resources

Medeco Product Catalog

Product Specs

Product Group:
Parts and Accessories
Series:
2051100
Product Subgroup:
Cylinders
Product Type:
Key-in-Knob/Lever Cylinder
Commercial/Residential:
Commercial
Subcategory:
Cylinders
Cylinder Classification:
6Pin
Product Category:
Parts and Accessories
Department:
Door Hardware

Medeco 2051100T-05-DLT – Frequently Asked Questions

1) Can I put a Medeco high-security cylinder in my Emtek knobs without replacing the lockset?
That's exactly what the Medeco 2051100 is for. It's a key-in-knob cylinder that drops into Emtek knob-type cylindrical locksets, and it also retrofits lever-type cylindrical locksets, padlocks, and bored-type auxiliary deadlatches and deadlocks. The knob or lever you already have stays on the door; only the cylinder changes, so you get UL 437 drill and pick resistance and patent-pending key control without pulling the hardware off the opening.
2) Does the Medeco 2051100 cylinder meet ANSI Grade 1 for a commercial building?
It does. The 2051100 carries ANSI/BHMA A156.5 Grade 1 for heavy-use applications and ANSI A156.30 Level A for patent-protected key control and physical strength, plus a UL 437 listing for drill and pick resistance. Those are the three lines an institutional spec usually calls out for a high-security cylinder, and the cylinder is classified for commercial use.
3) What is the difference between the Medeco Biaxial and M3 keyway options on the 2051100?
Both are Medeco key systems and you have to pick one when you order, because the cylinder is cut for the technology you choose and keys from one won't operate the other. Biaxial and M3 are the two technology and keyway choices offered on the 2051100. The rule for a building is simple: order the same technology as the Medeco cylinders already on your other doors so one key system covers the site. If this is a new system, pick one and standardize on it.
4) What does the Pinned vs Sub-Assembled option mean when ordering a Medeco 2051100 cylinder?
It decides whether the cylinder shows up ready to key or ready to use. Pinned means the cylinder comes pinned to your key system. Sub-Assembled ships for a locksmith or facility shop to pin themselves, and there is a Sub-Assembled, No Slider option as well for shops pinning to their own program. If you don't run your own key machine and Medeco records, order Pinned. If you keep a restricted system in house, the sub-assembled options are the ones you want.
5) Can I key a Medeco 2051100 into the same system as my other Medeco cylinders?
Yes, as long as you order the same technology. The 2051100 comes in Biaxial and M3, and a cylinder has to be on the same platform as the rest of your system to accept your keys. Order it Pinned to your existing system if Medeco holds your key records, or take it Sub-Assembled if your own locksmith pins to your program. That's how you get the knob cylinders, deadbolts and padlocks on a site running off one key.
6) I have Emtek levers, not knobs. Will this Medeco cylinder still work?
Yes. Although it's sold as a key-in-knob cylinder, the 2051100 retrofits lever-type cylindrical locksets as well as knob-type. Both are bored cylindrical locks and take the same cylinder family. It also covers bored auxiliary deadlatches and deadlocks and padlocks, so a mixed site of knobs, levers and padlocks can go on one Medeco system.
7) Will the Medeco 2051100 cylinder match my existing Emtek finish?
There are 13 finishes to choose from, so matching what's on the door is usually straightforward: 20 Antique Nickel, 605 Bright Brass, 606 Satin Brass, 609 Antique Brass, 611 Bright Bronze, 612 Satin Bronze, 613 Dark Bronze Oil-Rubbed, 618 Bright Nickel, 619 Satin Nickel, 622 Flat Black, 624 Dark Bronze, 625 Bright Chrome, and 626 Satin Chrome. Those BHMA numbers are the same codes stamped on your existing trim, so match the number rather than the name and you'll get a proper match.
8) Is a Medeco key-in-knob cylinder worth it over a standard cylinder for a multi-tenant building?
The case for it is key control, not hardware strength. A standard key-in-knob cylinder takes a blank anyone can cut at a hardware counter; the 2051100 uses Medeco's utility patent-pending key control so keys can't be duplicated without authorization, and it's UL 437 listed against drilling and picking. In multi-tenant residential, commercial offices, schools, healthcare, and government buildings, that's what stops the slow key drift that eventually forces a rekey of the whole property. If the opening only needs a working lock and the key never leaves one person, the security premium buys you less.
9) Is the Medeco 2051100 brass or plated pot metal inside?
Solid brass. The cylinder's components are precision-machined from brass, which is what holds tolerance on a high-security plug over years of cycling in a commercial opening. The finish codes on the outside are the plating; the working parts underneath are machined brass regardless of which finish you order.
10) How many pins does the Medeco 2051100 key-in-knob cylinder have?
Five pins. That's the chamber count for this cylinder in both the Biaxial and M3 technologies. It matters when you're setting up a master key system, because your keying schedule has to be built for a 5-pin cylinder if these are going on the knob and lever openings.
How fast can I get the Medeco 2051100T-05-DLT 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 2051100T-05-DLT come with a warranty?
Absolutely. The Medeco 2051100T-05-DLT 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 2051100T-05-DLT?
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 2051100T-05-DLT from ZenSupply?
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