Name: Medeco 11C62W Maxum Commercial Double Cylinder Deadbolt, Biaxial 6-Pinned, G3 Keyway, ANSI Grade 1
Brand: Medeco
SKU: MED-11C621W-05-G3P
Price: 423.87 USD
Availability: InStock

Product Overview
FAQs

Medeco Maxum 11C62W Commercial Double Cylinder Deadbolt — Biaxial 6-Pinned, G3 Keyway, ANSI Grade 1

The Medeco Maxum 11C62W is a heavy-duty commercial double cylinder deadbolt engineered for maximum security in demanding applications. Built with solid-brass construction and featuring Medeco's Biaxial cylinder technology with a 6-pinned, G3 keyway configuration, this deadbolt is ANSI/BHMA A156.36 Grade 1 certified and UL 437 listed for high-security performance. Designed to fit doors 1 3/8" to 2 1/2" thick with a standard 2 1/8" crossbore and 1" edge bore (ANSI A115.13 prep), the Maxum delivers uncompromising protection against drilling, picking, bumping, and prying attacks for commercial and residential environments alike.

Key Features

Door Thickness Compatibility: Fits doors 1 3/8" to 2 1/2" thick with a standard 2 1/8" crossbore and 1" edge bore (ANSI A115.13 prep) for straightforward installation.
Solid-Brass Construction: Heavy-duty solid-brass body provides exceptional resistance to physical attack, including prying, drilling, and forced entry attempts.
Advanced Picking & Bumping Protection: M4 cylinders utilize cylinder side pins, a shuttle lift pin, and a movable key element to engage a sidebar that prevents the key from turning until all elements are correctly rotated and aligned, defeating bumping, picking, and related attacks.
Patent-Pending Key Control: Medeco 4 technology protects against unauthorized key duplication, requiring a special key cutting machine and access to Medeco-specific blanks available in a variety of restriction levels.
Protection Against 3D Printing: A patent-pending movable element within the key deters unauthorized 3D-printed copies of keys or blanks, providing a modern layer of key security.
Drill Protection: Strategically placed drill pins within the solid-brass construction provide maximum resistance against drill attacks.
Master Keying Capabilities: M4 deadbolts can be integrated into master key systems that include M4, M4 BiLevel, and M4 CLIQ keys and cylinders, supporting extremely large keying systems.
Double Cylinder Configuration: Keyed operation on both interior and exterior sides guards against unauthorized entry, ideal for facilities requiring enhanced perimeter security.

Certifications & Compliance

ANSI/BHMA A156.36 Grade 1 Certified
UL 437 Listed — High Security Cylinders
BHMA Certified Grade 1 — Highest Industry Standards

Technical Specifications

Series: Maxum® Commercial Deadbolt
Cylinder Technology: Medeco Biaxial
Pinning: 6-Pin
Keyway: G3 Keyway
Cylinder Format: Fixed Cylinder
Certification: ANSI/BHMA A156.36 Grade 1 rated hardware platform
Door Thickness: Fits doors 1-3/8" to 2-1/2" thick
Door Prep: Standard 2-1/8" crossbore, 1" edge bore (ANSI/BHMA A115.13)
Construction: Solid-brass cylinder construction with hardened steel inserts
Warranty: 2-year manufacturer's warranty

Typical Applications

Commercial Office Buildings
Healthcare Institutions and Hospitals
Educational Facilities and Schools
Retail Establishments and Outlets
Multi-Tenant Residential and Apartment Properties
Restaurants and Food Service Facilities
Government and Municipal Buildings

Why Medeco?

Medeco Maxum deadbolts are built to the highest commercial security standards, combining solid-brass construction with UL 437 listed, ANSI/BHMA A156.36 Grade 1 certified cylinders that resist drilling, picking, bumping, and prying. The Biaxial M4 cylinder technology and patent-pending key control features deliver a level of physical and key security that is engineered for professionals who demand dependable, long-term protection in high-traffic commercial environments.

Manufacturer Resources

Medeco Product Catalog

Product Specs

Product Group:: Mechanical Locks
Series:: Maxum Series
Subcategory:: Deadbolts
Product Subgroup:: Bored Locksets
Product Type:: Deadbolts
Commercial/Residential:: Commercial
Keyed:: Yes
Grade:: Grade 1
Duty Level:: Heavy Duty
Keyed Function:: Double Cylinder
Lock Function:: Deadbolt
Product Attribute:: Deadbolts
Product Model:: 11C62W
Product Function:: Double Cylinder
Cylinder Classification:: 6 - Pinned
Keyway Options:: G3 Keyway
Product Category:: Mechanical Locks
Department:: Door Hardware

Medeco MED-11C621W-05-G3P – Frequently Asked Questions

1) Will the Medeco Maxum 11C62W deadbolt fit a 2 inch thick door?

Yes. The Maxum 11C62W covers doors from 1-3/8 inches up to 2-1/2 inches thick, which is a wider range than most commercial deadbolts hold. It drops into standard bored prep: 2-1/8 inch crossbore, 1 inch edge bore, per ANSI/BHMA A115.13. If your existing deadbolt hole is standard, no new boring is needed.

2) Do I need to specify a backset when ordering the Medeco Maxum 11C62W deadbolt?

Yes, backset is an order choice, not a field adjustment. The 11C62W is ordered with either a 2-3/8 inch or a 2-3/4 inch backset, and within each you pick the faceplate style: 1 inch faceplate, 1-1/8 inch faceplate, or drive-in (no faceplate, for a drilled hole with no mortised edge prep). There is also a Less Bolt Assembly option if you already have a serviceable bolt in the door and only need the cylinder body. Measure from the door edge to the center of the existing bore to know which backset you need.

3) What is the difference between a double cylinder deadbolt and a single cylinder deadbolt, and when should I use the Medeco 11C62W?

A single cylinder deadbolt is keyed outside with a thumbturn inside. The Maxum 11C62W is double cylinder: keyed on both faces, no thumbturn anywhere. That stops someone breaking adjacent glass and reaching in to turn the bolt, which is why it gets specified on storefronts, glass-front entries, and perimeter doors in offices and multi-tenant buildings. The tradeoff is egress: with no thumbturn, anyone inside needs a key to get out, so it is the wrong choice on a required exit door. If you want the Medeco cylinder but need thumbturn egress, order the single cylinder Maxum instead.

4) Can the Medeco Maxum 11C62W be put on the same master key system as our other Medeco cylinders?

Yes, within the Medeco 4 family. The Maxum deadbolt masterkeys with M4, M4 BiLevel, and M4 CLIQ keys and cylinders, and Medeco states these systems scale to very large keying schemes, which is what you want across a campus or a portfolio of buildings. This one is a 6-pin Biaxial cylinder on the G3 keyway, so your keyway and pinning have to line up with the existing system. Order it Keyed Different, Keyed Alike, or to a specific key code if you are matching an existing system.

5) Is the Medeco Maxum 11C62W deadbolt actually rated for commercial use, or is it a residential lock?

Commercial, heavy duty. The Maxum 11C62W is certified ANSI/BHMA A156.36 Grade 1, the top grade for auxiliary deadbolt locks, and the cylinder is UL 437 listed for high security, which is the listing that covers drill and pick resistance. Body is solid brass with hardened steel inserts and drill pins. Grade 1 is the level normally written into specs for offices, schools, healthcare, and government facilities.

6) What is a good alternative to the Medeco Maxum 11C62W if I need a Grade 1 double cylinder deadbolt without the high security keyway?

Two to look at. The Design Hardware D1 Series double cylinder is Grade 1, extra heavy duty, rated for 1-3/4 inch doors. The Dexter DB1000 Series double cylinder is Grade 1 and covers 1-3/8 to 1-7/8 inch doors, so it suits a slightly wider thickness range. Neither carries the Medeco restricted keyway or the UL 437 cylinder listing, so if your reason for buying is key control or attack resistance on the cylinder, the Maxum is the one to keep. If you just need a Grade 1 bolt on a standard door, they cover it. Note both are narrower on thickness than the Maxum's 1-3/8 to 2-1/2 inch range.

7) I need a double cylinder deadbolt but the door is 2 inches thick. What are my options?

At 2 inches, most bored deadbolts are already out of range. The Medeco Maxum 11C62W goes to 2-1/2 inches, so it covers it. Among the other double cylinder deadbolts we carry, the Deltana 7312KA2 is rated to 2 inches, though it is a Grade 3 lock. The Dexter DB1000 double cylinder tops out at 1-7/8 inches and the Design Hardware D1 is a 1-3/4 inch door lock, so neither will work on a 2 inch door. Measure the door leaf before you order; thickness is where these substitutions usually fail.

8) Will the Medeco Maxum 11C62W drop into the hole left by an old commercial deadbolt?

In most cases yes. It uses the standard bored prep, a 2-1/8 inch crossbore through the face and a 1 inch edge bore, per ANSI A115.13, which is the same prep the vast majority of commercial tubular deadbolts use. The two things to check on the door you are replacing: the backset (2-3/8 or 2-3/4 inch, and you order the bolt to match) and the existing faceplate cutout, since the bolt comes with a 1 inch faceplate, a 1-1/8 inch faceplate, or drive-in. Match the faceplate to what is mortised into the edge and there is no patching.

9) What is the closest Grade 1 double cylinder deadbolt to the Medeco Maxum 11C62W?

The Design Hardware D1 Series D1-D is the nearest peer: it is a Grade 1 double cylinder deadbolt rated extra heavy duty for 1-3/4 inch doors. The Maxum 11C62W is also Grade 1 and double cylinder, and it covers a wider door range of 1-3/8 inch to 2-1/2 inch, with a Medeco Biaxial 6-pinned G3 keyway cylinder. Choose the D1-D when the opening is a standard 1-3/4 inch door and a conventional keyway is acceptable; choose the Maxum when the specification calls for a UL 437 high-security cylinder or a door outside 1-3/4 inch.

10) Which double cylinder deadbolt fits a door thicker than 1-3/4 inch?

The Medeco Maxum 11C62W fits doors 1-3/8 inch to 2-1/2 inch thick. Among the double cylinder alternatives, the Dexter DB1000-DCT is Grade 1 for 1-3/8 inch to 1-7/8 inch doors, the Deltana 7312KA2 is Grade 3 for 1-3/8 inch to 2 inch doors, and the Dexter DB2000-DCT is Grade 2 for 1-3/8 inch to 1-3/4 inch doors. For a door in the 2 inch to 2-1/2 inch range the Maxum is the one that covers it.

11) I need the same lock but with a thumbturn inside instead of a second key. What do I order?

A double cylinder deadbolt like the Medeco Maxum 11C62W is keyed on both faces. For a cylinder by thumbturn opening, the Grade 1 options include the Falcon D111, a heavy duty Grade 1 deadbolt with adjustable backset, the Dexter DB1000-SCT for doors 1-3/8 inch to 1-7/8 inch, the Accentra D111 with a 2-3/8 inch backset for 1-3/8 inch to 1-3/4 inch doors, and the Delaney LM Series 301702 supplied less core in dull chrome US26D. Many jurisdictions restrict double cylinder hardware on required egress doors, so confirm the egress requirement for the opening before choosing.

12) Which deadbolt carries a fire rating where the Medeco Maxum is specified on grade and UL 437?

The Maxum 11C62W is ANSI/BHMA A156.36 Grade 1 certified and UL 437 listed for high-security cylinders. Where the opening needs a fire-rated deadbolt, the Hager 3214 is a Grade 2 double cylinder deadbolt with a Schlage C keyway for doors 1-3/8 inch to 1-3/4 inch and carries a fire rating, and the Cal-Royal CRB800 is a Grade 1 heavy duty single cylinder deadbolt with a UL 3-hour fire rated latch. Pick by whether the opening needs key operation from both faces.

13) What should I order if I want the Medeco keys but my keying is done in-house by our locksmith?

Order the Maxum 11C62W Sub-Assembled rather than Pinned. Sub-assembled ships without the cylinder pinned to a combination, so your locksmith pins it to your existing Medeco system on the bench or in the field. Pinned means it comes keyed from the factory, which is what you want if you are ordering Keyed Alike across a set of doors or to a specific key code you already have on record. Note that Medeco key cutting needs a Medeco-specific machine and restricted blanks, so the shop doing the work has to be set up for M4.

14) How do I stop tenants copying keys to our Medeco deadbolts at the hardware store?

That is the main reason the Maxum 11C62W gets specified. Medeco 4 key control means blanks are restricted and cutting requires a Medeco-specific machine, so a corner store cannot duplicate them. Blanks come in a range of restriction levels, so you choose how tightly duplication is controlled. There is also a patent-pending movable element in the key itself that a 3D printed copy cannot reproduce.

15) Do I need a deadbolt or a classroom deadlock for a school door?

Different jobs. The Medeco Maxum 11C62W is a bored double cylinder deadbolt: keyed both faces, no free egress, meant for perimeter and storefront doors where you do not want anyone reaching through broken glass. For classroom doors, look at a keyed deadlock like the Falcon D111, a Grade 1 classroom function deadbolt with adjustable backset, or the Hager 3118 Grade 1 classroom deadbolt on the Schlage C keyway with a 6-pin cylinder. Corbin Russwin's DL3011 Grade 1 cylindrical deadlock covers 1-3/4 to 2-1/4 inch doors if the leaf is thick. Egress rules for classrooms are the deciding factor, and a double cylinder bolt is usually not what you want inside a building.

16) Can I order Medeco Maxum deadbolts keyed alike across a set of doors?

Yes. Keying is a required selection on the Maxum 11C62W: Keyed Different for each lock on its own key, Keyed Alike so one key runs the whole group, or Key Code if you are matching cylinders already in service and can supply the code. Keyed Alike is the usual pick for a property manager putting the same key on several perimeter doors in one building. If you are extending an existing Medeco system, use Key Code and give the code from your records.

17) What is a simpler double cylinder deadbolt than the Medeco Maxum for a lower-security opening?

The Dexter DB2000-DCT is a Grade 2 double cylinder deadbolt for doors 1-3/8 inch to 1-3/4 inch, the Delaney LU Series 320601 is a Grade 2 double cylinder deadbolt in stainless steel US32D, and the Callan 210S is a Grade 3 double cylinder deadbolt. All three key both sides like the Maxum 11C62W, which is Grade 1 with a Medeco Biaxial 6-pinned G3 cylinder. The trade is grade level and cylinder technology, so match the grade to what the facility specification calls out.

18) Is the Corbin Russwin DL3011 a substitute for the Medeco Maxum 11C62W?

No. The DL3011 is a Grade 1 cylindrical deadlock in a cylinder by blank plate configuration for doors 1-3/4 inch to 2-1/4 inch, so the inside face has no operating trim at all. The Maxum 11C62W is a double cylinder deadbolt keyed on both sides, so it can be retracted from either face with a key. Use the DL3011 where the inside must be blank and another device handles egress; use the Maxum where both faces need key control.

19) What double cylinder deadbolt should I use if I need a small format interchangeable core instead of a fixed cylinder?

The Medeco Maxum 11C62W uses a fixed Biaxial cylinder in a G3 keyway. If the keying program runs on interchangeable cores, the Arrow E61 26D IC is a Grade 2 single cylinder deadlock supplied with SFIC prep less core for doors 1-3/8 inch to 1-3/4 inch, and the Deltana CL200LAIC is a Grade 2 single cylinder deadbolt with a 2-3/4 inch backset supplied less cylinder. Both are single cylinder rather than keyed on both faces, so confirm whether the opening requires key operation from inside.

20) The Baldwin Reserve double cylinder deadbolts look like the same thing. How do they differ from the Medeco Maxum?

The Baldwin Reserve DC.CRD and DC.CSD are double cylinder deadbolts with contemporary round and contemporary square trim, and the Baldwin Estate 8011 is a contemporary 1-5/8 inch double cylinder deadbolt in an entrance function. They are selected largely on trim shape and finish appearance. The Medeco Maxum 11C62W is a commercial heavy duty deadbolt specified on ANSI/BHMA Grade 1 and a Biaxial 6-pinned G3 high-security cylinder. Both are keyed on two faces, so the decision comes down to whether the opening is being specified for decorative trim or for a certified commercial security level.

21) Can an electronic deadbolt replace the Medeco Maxum 11C62W on a multi-tenant door?

It changes how the door is credentialed. The Maxum 11C62W is a mechanical double cylinder deadbolt with a Biaxial 6-pinned G3 keyway that can be brought into an M4 master key system. The Dormakaba Nova-D is an RFID multihousing smart electronic deadbolt, the Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override, and the Codelocks CL2200 is a medium duty electronic surface deadbolt in brushed steel. Those move the door onto credentials and power; the Maxum keeps it on a keyed system with no power at the opening.

22) Which deadbolts are surface or mortise mounted rather than bored like the Medeco Maxum?

The Maxum 11C62W installs in a standard 2-1/8 inch crossbore with a 1 inch edge bore to ANSI/BHMA A115.13, so it drops into a conventional bored prep. If the door cannot take that prep, the Codelocks CL200 is a surface deadbolt with key override, the Dormakaba D900 is a small case mortise deadbolt with a D cylinder keyed different in SC keyways, and the Emtek 2050 is a European mortise deadbolt with an integrated roller latch in square trim. Those require surface mounting or a mortise pocket instead.

23) What do I use on a door that needs an ADA-friendly turn instead of a keyed inside cylinder?

The Cal-Royal LSD is a Grade 3 single cylinder deadbolt with an ADA ergonomic thumbturn for doors 1-3/8 inch to 1-3/4 inch, and the Cal-Royal ED500 is a Grade 3 single cylinder deadbolt with an adjustable backset over the same door range. The Medeco Maxum 11C62W is double cylinder and Grade 1, so it requires a key on the inside face. On an opening where occupants must release the bolt without a key, the single cylinder units are the ones to look at.

24) What makes a Medeco Biaxial cylinder harder to pick or bump than a standard commercial cylinder?

The Maxum's M4 cylinder does not rely only on pin height. It adds side pins, a shuttle lift pin, and a movable element in the key that together drive a sidebar. Until every one of those is both lifted to the right height and rotated to the right angle, the sidebar holds and the plug will not turn. Bumping and standard picking only address height, which is why they do not defeat it. Drill pins set in the solid brass body cover the drill attack separately.

25) Can I get a Medeco Maxum deadbolt to match dark bronze or black door hardware?

Yes. The Maxum 11C62W comes in 13 finishes, including 613 Dark Bronze Oil-Rubbed, 624 Dark Bronze, 622 Flat Black, and 609 Antique Brass, alongside the standard commercial 626 Satin Chrome and 625 Bright Chrome. Brass and nickel are covered too: 605 Bright Brass, 606 Satin Brass, 611 Bright Bronze, 612 Satin Bronze, 618 Bright Nickel, 619 Satin Nickel, and 20 Antique Nickel. For a property manager standardizing across a building, 626 is the usual commercial match.

26) Is the Emtek 8323 Modern Disc double cylinder deadbolt an alternative to the Medeco Maxum?

Both are double cylinder deadbolts, so both key from inside and outside. The Emtek 8323 is a brass Modern Disc trim deadbolt selected for its disc trim styling. The Medeco Maxum 11C62W is a commercial Grade 1 deadbolt with a Biaxial 6-pinned G3 cylinder and a bolt offered in 2-3/8 inch and 2-3/4 inch backsets with 1 inch or 1-1/8 inch faceplates or drive-in. On a commercial opening carrying a Grade 1 requirement the Emtek is a styling choice rather than an equivalent.

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Does the Medeco MED-11C621W-05-G3P come with a warranty?

Absolutely. The Medeco MED-11C621W-05-G3P is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.

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Medeco 11C62W Maxum Commercial Double Cylinder Deadbolt, Biaxial 6-Pinned, G3 Keyway, ANSI Grade 1