Medeco 100200T M3 Standard 6-P...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$187.00
$134.33

Medeco 100200T M3 Standard 6-Pin Mortise Cylinder, 1-1/8" to 1-3/4", Straight Cam, DL Keyway — High Security UL437

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Model: MED-100200T-05-DLT
$187.00
$134.33
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$187.00
$134.33
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Medeco M3 Standard 6-Pin Mortise Cylinder, 1-1/8" to 1-3/4", Straight Cam, DL Keyway — High Security UL437 Certified

The Medeco M3 Standard 6-Pin Mortise Cylinder is a high-security, UL437-certified cylinder lock engineered for demanding commercial and institutional applications. Featuring Medeco's proprietary M3 sidebar technology, this mortise cylinder is threaded on the outside shell for straightforward installation into standard mortise lock cases from leading manufacturers, with a rear-mounted cam engaging the locking mechanism and a set screw securing the cylinder in place. Sized from 1-1/8" to 1-3/4" with a straight cam and DL keyway, this 6-pin cylinder delivers superior attack resistance and patented key control in a brass construction rated Grade 1 Heavy Duty.

Key Features

  • Length Range: Accommodates door applications from 1-1/8" to 1-3/4", providing versatile fit across a wide range of standard mortise lock cases.
  • M3 Sidebar Technology: The sidebar locking mechanism prevents the key from turning until it is elevated, rotated, and properly aligned — offering enhanced protection against picking and bumping.
  • Proprietary Angle-Cut Keys: Medeco's angled cuts and restricted key blanks make unauthorized duplication virtually impossible, ensuring strict key control.
  • UL437 Certified: Certified to UL437 standards, confirming resistance to physical attacks including drilling, picking, and bumping.
  • Patented Key Control: Keys cannot be duplicated without authorization, protecting the integrity of your master key system over the full lifecycle of the hardware.
  • Brass Construction: Manufactured from brass for long-term durability and corrosion resistance in heavy-duty commercial environments.
  • Retrofittable Design: Threaded outer shell installs easily into existing standard mortise lock cases from other leading manufacturers, simplifying upgrades without full hardware replacement.
  • Master Key System Compatibility: Compatible with M4 BiLevel and larger Medeco master key systems, supporting complex keying hierarchies including keyed alike, keyed different, and master keyed configurations.

Certifications & Compliance

  • UL437 Certified — Resistance to drilling, picking, and bumping verified
  • ANSI/BHMA Grade 1
  • Heavy Duty Duty Level

Technical Specifications

  • Product Group: Parts and Accessories
  • Cylinder and Keyways: DL Keyway, 6-Pin
  • Grade: Grade 1
  • Duty Level: Heavy Duty
  • Technology: M3
  • Product Model: 100200T
  • Product Category: Parts and Accessories
  • Product Substrate: Brass

Typical Applications

  • Commercial Office Buildings
  • Government and Municipal Buildings
  • Educational Institutions
  • Healthcare Facilities
  • Retail Storefronts
  • Multi-Unit Residential Properties
  • Institutional Security Upgrades and Retrofits

Why Medeco M3?

Medeco M3 mortise cylinders are built from brass with Grade 1 Heavy Duty ratings and UL437 certification, delivering verified resistance to drilling, picking, and bumping in the most demanding commercial environments. The proprietary sidebar mechanism and angle-cut restricted keyway system provide a level of key control and physical security that standard cylinders simply cannot match, making Medeco the trusted choice for facilities where access integrity is non-negotiable.

Manufacturer Resources

Product Specs

Subcategory:
Mortise
Product Group:
Parts and Accessories
Product Subgroup:
Cylinders
Product Type:
Mortise Cylinder
Cylinder and Keyways:
DL Keyway, 6-Pin
Commercial/Residential:
Commercial
Grade:
Grade 1
Duty Level:
Heavy Duty
Technology:
M3
Tags:
medeco cylinder lock, medeco mortise cylinder, medeco m3 cylinder
Product Model:
100200T
Product Category:
Parts and Accessories
Product Substrate:
Brass
Department:
Door Hardware

Medeco MED-100200T-05-DLT – Frequently Asked Questions

1) What is the Medeco M3 Standard 6-Pin Mortise Cylinder designed for?
This mortise cylinder fits standard commercial door preparations with 1-1/8" to 1-3/4" door thickness. The straight cam operates mortise locksets and panic hardware. DL keyway provides restricted key control.
2) Which mortise locks are compatible with this cylinder?
Compatible with most commercial mortise locksets including Corbin Russwin, Sargent, Yale, and others using standard ANSI A156.13 specifications. Verify cam length and throw requirements with your lockset manufacturer.
3) How do I determine the correct cylinder length for my door?
Measure door thickness precisely. This cylinder adjusts from 1-1/8" to 1-3/4". For doors outside this range, order specific length cylinders. Account for any door reinforcement or plates that add thickness.
4) What security grade does the Medeco M3 provide?
Medeco M3 meets ANSI/BHMA Grade 1 security standards. Features patented key control, drill resistance, and pick protection. Suitable for high-security commercial applications requiring restricted keyways.
5) Can I rekey this cylinder to match existing Medeco keys?
Yes, if you have proper authorization for the DL keyway system. Rekeying requires Medeco-trained locksmiths and authorized key cutting equipment. Maintain key control documentation per Medeco requirements.
6) What finish options are available for this mortise cylinder?
Standard finishes include satin chrome, bright brass, and oil rubbed bronze. Verify finish compatibility with your mortise lockset. Custom finishes may be available through special order.
7) How do I install this mortise cylinder properly?
Remove old cylinder, adjust new cylinder length to door thickness, and insert with cam aligned to lockset position. Secure with set screw if required. Test operation before final installation. Follow lockset manufacturer instructions.
8) What is the difference between straight cam and other cam types?
Straight cams work with most standard mortise locks and panic hardware. Offset cams are for specific applications. Match cam type to your lockset requirements or consult manufacturer specifications.
9) Does this cylinder require special maintenance?
Medeco cylinders need minimal maintenance. Use approved graphite lubricant only - never oil-based products. Clean key regularly and avoid forcing operation if resistance occurs. Schedule professional service for high-use installations.
10) Are replacement parts available for this cylinder?
Yes, authorized Medeco dealers stock common replacement parts including cams, rings, and internal components. Keep cylinder model and keyway information for accurate parts ordering.
11) What other Medeco mortise cylinders should I consider?
Consider Medeco M3 rim cylinders for surface-mounted locks or different keyway options for specific security requirements. Browse our Medeco collection for complete cylinder options.
How fast can I get the Medeco MED-100200T-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 MED-100200T-05-DLT come with a warranty?
Absolutely. The Medeco MED-100200T-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 MED-100200T-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 MED-100200T-05-DLT 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.