Medeco 11TR53 Maxum Residentia...
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Medeco Medeco Maxum Residential Deadbolt, M3 6-Pinned, Captive Key, DL Keyway 11TR53

Medeco 11TR53 Maxum Residential Deadbolt M3 6-Pin Captive Key DL Keyway - UL 437 Listed, BHMA Grade 1

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Model: 11TR634-26
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Medeco Maxum Residential Deadbolt M3 6-Pin Captive Key DL Keyway — UL 437 Listed & BHMA Grade 1 Certified

The Medeco Maxum Residential Deadbolt is a UL 437 Listed, BHMA A156.5 Grade 1 Certified high-security deadbolt engineered to deliver unmatched protection against unauthorized key duplication, bumping attacks, picking, drilling, wrenching, kicking, and other forms of physical abuse. Featuring a solid 1" hardened steel bolt housed in a heavy-gauge tubular steel body, the Maxum fits doors 1 3/8" to 2 1/2" thick and installs into a standard 2 1/8" crossbore and 1" edge bore (ANSI A115.13 prep). The M3 6-pin cylinder with DL Keyway and captive key technology is backed by ANSI/BHMA A156.36 Grade 1 and UL 437 listed cylinder ratings, making it one of the most secure residential deadbolts available.

Key Features

  • UL 437 Listed & BHMA A156.5 Grade 1 Certified: Meets the highest residential deadbolt standards for resistance to picking, drilling, and physical attack.
  • Solid 1" Hardened Steel Bolt: Heavy-gauge tubular steel housing surrounds the bolt and throwing mechanism for maximum resistance to crowbar and physical attacks.
  • 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).
  • Medeco 4 (M4) Key Control Technology: Patent-pending design with a movable element deters unauthorized key duplication and 3D-printed key copies, backed by BHMA A156.30 Certification.
  • Special Angle Cut Keys: Requires a special key cutting machine and Medeco-specific blanks; angled cuts plus fore-and-aft positioning dramatically increase key combinations for large master key systems.
  • Drill & Pick Resistance: Hardened steel inserts and rotating pins provide drill and pick resistance per UL 437; solid-brass construction with strategically placed drill pins offers maximum protection.
  • Steel Shroud Over Bolt: Protects against "ice pick" type attacks for added physical security.
  • High-Security Strike Plate: Special box design with 2" screws anchors the strike directly to the building structure behind the frame, preventing kick-in attacks.
  • Master Keying Capabilities: Can be master keyed into systems including M4, M4 BiLevel, and M4 CLIQ keys and cylinders; supports extremely large master key systems.
  • Available Finishes: Offered in 14 finishes including Bright Brass, Satin Brass, Antique Brass, Satin Brass Blackened, Bright Bronze, Satin Bronze, Oil Rubbed Bronze, Bright Nickel, Satin Nickel, Antique Nickel, Black, Dark Bronze, Bright Chrome, and Satin Chrome.

Certifications & Compliance

  • UL 437 Listed
  • BHMA A156.5 Grade 1 Certified
  • ANSI/BHMA A156.36 Grade 1 Listed Cylinders
  • BHMA A156.30 Certified Key Control
  • ANSI A115.13 Door Prep Compatible

Technical Specifications

  • Series: Maxum® Residential Deadbolt
  • Cylinder Technology: Medeco M3
  • Pinning: 6-Pin
  • Keyway: DL Keyway
  • Certification: ANSI/BHMA A156.36 Grade 1 rated hardware platform
  • Bolt: 1" solid hardened-steel bolt in heavy-gauge steel housing
  • 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

  • Residential Entry Doors Requiring High-Security Protection
  • Single-Family Homes and Condominiums
  • Multi-Unit Residential Properties
  • Upscale Residential Communities with Master Key Systems
  • Home Offices and Private Studios
  • Vacation Properties and Secondary Residences
  • Any Application Requiring Grade 1 Deadbolt with Key Duplication Control

Why Medeco?

Medeco Maxum deadbolts are built with solid-brass construction, hardened steel inserts, rotating pins, and a 1" hardened steel bolt in a heavy-gauge steel housing — all engineered to meet UL 437 and BHMA A156.5 Grade 1 standards. The patent-pending Medeco 4 key control system, combined with BHMA A156.30 Certified key duplication protection, ensures that only authorized individuals can obtain working keys, making the Maxum one of the most comprehensively secure residential deadbolts available for demanding applications.

Manufacturer Resources

Medeco Product Catalog

Product Specs

Product Group:
Mechanical Locks
Series:
Maxum Series
Subcategory:
Deadbolts
Product Subgroup:
Bored Locksets
Product Type:
Deadbolts
Cylinder and Keyways:
DL Keyway, 6-Pin
Commercial/Residential:
Residential
Lock Function:
Deadbolt
Product Model:
11TR53
Product Function:
Deadbolt
Product Category:
Mechanical Locks
Department:
Door Hardware

Medeco 11TR634-26 – Frequently Asked Questions

1) Will the Medeco Maxum 11TR53 deadbolt fit the hole already drilled in my door?
If the door carries the standard ANSI A115.13 prep, the Maxum drops straight in. It installs into a 2-1/8 inch crossbore with a 1 inch edge bore, which is the pattern nearly every entry door has been drilled to for decades. Two measurements decide it before you order. Measure from the door edge to the center of the round hole: that is your backset, and it will be either 2-3/8 or 2-3/4 inches, both of which the Maxum is built in. Then measure the door thickness, which has to fall between 1-3/8 and 2-1/2 inches. Match those two and no new boring is needed.
2) Which latch do I order on the Medeco Maxum deadbolt, the 1 inch faceplate or the drive-in?
The door edge decides it. Pull the old bolt and look: if there is a rectangular mortise routed into the edge with a plate sitting flush in it, order the 1 inch faceplate. If the edge bore is just a round hole with no mortise and no plate, order the drive-in, which presses into the round bore behind a collar and needs no routing. Both are offered on the Maxum. Order the wrong one and you either have a faceplate with nothing to seat into or a drive-in collar standing proud of a mortise that is already cut.
3) Is the Medeco Maxum deadbolt a 2-3/8 or a 2-3/4 inch backset?
Both. The Maxum is built in a 2-3/8 inch and a 2-3/4 inch backset and you pick one when you order, so this is a measurement to take rather than a guess. Backset is the distance from the door edge to the center of the bolt hole. 2-3/8 inches is the common residential figure and 2-3/4 inches turns up on wider stiles and many heavier or older entry doors. If the door is already bored, measure the existing hole. Half an inch off means the bolt will not line up with the strike and the prep does not forgive it.
4) I have a 2 inch thick entry door. Will a Medeco Maxum deadbolt fit it?
Yes. The Maxum's stated range is 1-3/8 to 2-1/2 inches, which covers a 2 inch door with room to spare. That range is wider than most of the bored deadbolts we carry: the Dexter DB1000 single cylinder stops at 1-7/8 inches, the Deltana 7312KA2 at 2 inches, and the Corbin Russwin DL3011 cylindrical deadlock runs 1-3/4 to 2-1/4 inches. On a thick solid or built-up door, check the range before anything else, because a deadbolt whose tailpiece and spindle are cut for a 1-3/4 inch door will not reach through 2 inches of stile.
5) Can a hardware store or my local locksmith cut copies of a Medeco Maxum key?
Not on ordinary equipment. Maxum keys use Medeco blanks and angled cuts with fore and aft pin positioning, and cutting them takes a machine set up specifically for that, so they do not come off a duplicator at a hardware counter. That restriction is the product: key control on the Maxum is certified to BHMA A156.30 and the design uses a movable element to deter unauthorized duplication, including 3D printed copies. For a rental unit or a shared building entry, order the key count you need at the outset rather than assuming a tenant can run off spares later.
6) Can I key a set of Medeco Maxum deadbolts alike or bring them into a master key system?
Both are supported. Keyed alike and keyed different are ordering choices, so a landlord putting new bolts on one building's entries can run every door on a single key. For a portfolio, the Maxum master keys into systems built on M4, M4 BiLevel, and M4 CLIQ keys and cylinders, and the angle cut key design supports very large master key systems because the angled cuts multiply the available combinations well past a standard pin tumbler. The cylinder is a 6-pin M3 in the DL keyway, so that is the platform to give whoever lays out the keying schedule.
7) Which other Grade 1 deadbolts are equivalent to the Medeco Maxum 11TR53?
Several peers sit at the same BHMA grade. The Medeco Maxum 11TR53 is BHMA A156.5 Grade 1 certified and UL 437 listed, with an M3 6-pin cylinder in the DL keyway. Accentra D111 is a Grade 1 single cylinder deadbolt, cylinder x thumbturn, with a 2-3/8 inch backset. Dexter DB1000-SCT is a Grade 1 single cylinder deadbolt for doors 1-3/8 to 1-7/8 inch. Deltana CL200LM is a Grade 1 single cylinder deadbolt, and Delaney LM Series 301702 is a Grade 1 single cylinder deadbolt supplied less core in dull chrome US26D. The separating point is the cylinder rather than the grade: the Maxum carries the UL 437 cylinder listing and the restricted DL keyway with captive key, while the other four are specified by grade and function.
8) Which deadbolt fits a door thicker than 2 inches?
The Medeco Maxum 11TR53 fits doors 1-3/8 to 2-1/2 inch thick in a standard 2-1/8 inch crossbore with a 1 inch edge bore to ANSI A115.13, so it covers thick entry slabs and built-up doors in one part number. Among the alternatives, Corbin Russwin DL3011 covers 1-3/4 to 2-1/4 inch, though it is a cylindrical deadlock supplied cylinder x blank with no inside thumbturn. Deltana 7312KA2 is a Grade 3 double cylinder deadbolt rated 1-3/8 to 2 inch. Bored deadbolts such as Dexter DB1000 are listed to 1-7/8 inch and Accentra D111 to 1-3/4 inch, so confirm the slab thickness before selecting either of those.
9) The entry has glass in or beside the door and the spec calls for a key on both sides. Which deadbolts are keyed both sides?
For an opening where a thumbturn is reachable through glass, the double cylinder versions are the ones to quote. Dexter DB1000-DCT is a Grade 1 double cylinder deadbolt for doors 1-3/8 to 1-7/8 inch. Design Hardware D1 Series is a Grade 1 extra heavy duty double cylinder deadbolt for 1-3/4 inch doors. Hager 3214 is a Grade 2 double cylinder deadbolt with a Schlage C keyway for 1-3/8 to 1-3/4 inch doors. Baldwin Reserve offers double cylinder deadbolts in contemporary round and contemporary square trim, and Baldwin Estates 8011 is a contemporary 1-5/8 inch double cylinder deadbolt. Local egress code governs whether a keyed inside cylinder is permitted on the opening.
10) I need a deadbolt keyed from outside with no thumbturn on the inside. What are the options?
Corbin Russwin builds that arrangement as a cylindrical deadlock, cylinder x blank: DL2211 is Grade 1 in classroom function for 1-3/4 inch doors, DL3211 is Grade 1 for 1-3/4 inch doors, and DL3011 is Grade 1 for 1-3/4 to 2-1/4 inch doors. Callan 205S is a Grade 3 one-sided half-bore deadbolt, keyed on one face only, which suits a door where the inside face is to stay blank and the bore is not through-drilled. The reverse arrangement also exists: Arrow E60 is a Grade 2 non-keyed exit deadlock, blank plate outside and thumbturn inside, for 1-3/8 to 1-3/4 inch doors. Confirm which face carries the key before ordering, since the three are not interchangeable.
11) The backset in the existing bore has not been confirmed. Is there a deadbolt that covers 2-3/8 and 2-3/4 inch?
The Medeco Maxum 11TR53 is ordered to a fixed backset, either 2-3/8 inch or 2-3/4 inch, so the bore has to be measured first. Where the backset cannot be confirmed ahead of the truck roll, adjustable-backset models cover both centers from one box: Brinks Raleigh Series E2401 in transitional round trim and Brinks Mendocino Series E2402 in contemporary square trim both use a 4 way adjustable backset, Cal-Royal ED500 is a Grade 3 single cylinder deadbolt with adjustable backset for 1-3/8 to 1-3/4 inch doors, and Falcon D111 is a Grade 1 classroom deadbolt with adjustable backset in heavy duty. On a planned replacement where the bore is measured, the fixed-backset Maxum is specified directly.
12) Will a Codelocks CL200 or a Dormakaba D900 drop into the same door prep as a Medeco Maxum deadbolt?
No, the door prep is different. The Medeco Maxum 11TR53 is a bored deadbolt that installs into a standard 2-1/8 inch crossbore with a 1 inch edge bore to ANSI A115.13. Codelocks CL200 is a surface deadbolt with key override, mounted to the face of the door. Dormakaba D900 is a small case mortise deadbolt with a D cylinder, keyed different with SC keyways, and needs a mortise pocket in the door edge. Emtek 2050 and 2051 are European mortise deadbolts with an integrated roller latch, in square and round trim. DynaLock 1300 Series is a mortise electric deadbolt in heavy duty. Any of those means a different door preparation, not a swap into an existing crossbore.
13) We build every cylinder on our own SFIC cores. Which deadbolts accept a core instead of a factory keyway?
The Medeco Maxum 11TR53 ships with the M3 6-pin cylinder in the DL keyway and is master keyed into Medeco systems including M4, M4 BiLevel and M4 CLIQ, so the key system is Medeco end to end. For a house core program instead, Arrow E61 26D IC is a Grade 2 single cylinder deadlock with SFIC prep supplied less core, for doors 1-3/8 to 1-3/4 inch. Deltana CL200LAIC is a Grade 2 single deadbolt for interchangeable core, supplied non cylinder, with a 2-3/4 inch backset. Delaney LM Series 301702 is a Grade 1 single cylinder less core deadbolt in dull chrome US26D. Those three take the core you already stock; the Maxum keys into a Medeco system.
14) Do I really need a UL 437 deadbolt, or is a standard Grade 1 deadbolt enough?
Grade and attack rating measure different things, and it is worth separating them. BHMA A156.5 Grade 1 is a strength and cycle standard, and the Maxum carries it. UL 437 is a separate listing for resistance to picking and drilling, and the Maxum's cylinder is listed to it, with hardened steel inserts and rotating pins. So the question is really whether you are defending against force or against someone working the cylinder and copying keys. If it is force alone, we stock Grade 1 deadbolts without the high security cylinder, including the Delaney LM Series and the Deltana CL200LM, plus Grade 2 options like the Arrow DBX61 and the Dexter DB2000. Where an unaccounted key is the actual risk, the Maxum is the one that solves it.
15) Does the Medeco Maxum deadbolt come with a strike that anchors into the framing?
It does. The Maxum uses a high security box strike fastened with 2 inch screws that run past the jamb and into the structural framing behind it. That detail matters more than most buyers expect: a 1 inch solid hardened steel bolt in a heavy gauge steel housing is only as good as what it throws into, and short screws holding a strike to the jamb alone are the usual point of failure in a kick-in. On install, make sure those long screws land in solid framing rather than bridging an unshimmed gap between jamb and stud.
16) Is the Medeco Maxum the right deadbolt for a commercial storefront or office door?
Medeco builds the Maxum as a residential deadbolt, and that is where it belongs: single family entries, condos, multi unit apartment doors, and vacation properties. For a commercial opening, a cylindrical deadlock is the usual specification instead, and we carry the Corbin Russwin DL3011 Grade 1 for 1-3/4 to 2-1/4 inch doors and the Falcon D111 Grade 1 heavy duty deadbolt with adjustable backset. The one commercial argument for the Maxum is key control on a specific high value door, an office within a building or a records room, where restricted keys matter more than the duty rating.
17) What is the difference between the Medeco Maxum and a European mortise deadbolt like the Emtek 2050?
The prep, and it is not interchangeable. The Maxum is a bored deadbolt: 2-1/8 inch crossbore through the face, 1 inch edge bore, the round hole pattern already in most entry doors. The Emtek 2050 and 2051 are European mortise deadbolts, which need a rectangular pocket routed into the door edge, so they cannot go into a bored door without machining it. Surface mounted units such as the Codelocks CL200 are a third pattern again, screwed to the inside face rather than through the door. If your door has a round deadbolt bore in it today, stay with a bored deadbolt.
18) What are the Grade 2 single cylinder deadbolt alternatives?
Where the specification calls for Grade 2 rather than Grade 1, the single cylinder options include Arrow DBX61, a Grade 2 cylinder x thumbturn deadbolt in the DBX Series; Dexter DB2000-SCT, Grade 2 for doors 1-3/8 to 1-3/4 inch; Cal-Royal CB160, Grade 2 with a tamper-resistant cylinder guard; Deltana CL200LA, Grade 2 with a 2-3/4 inch backset; and Bravura 310B Elite, Grade 2 in traditional round trim, with the 310RC and 310SC Elite covering contemporary round and square. Falcon D211 is a Grade 2 classroom function deadbolt with single cylinder operation in medium duty. The Medeco Maxum 11TR53 is BHMA A156.5 Grade 1 with a UL 437 listed cylinder, which is the distinction to check against the drawing.
19) A search for deadbolt returned a Baldwin 8BR0618001 and a BEST 8T. Are those replacements for a Maxum deadbolt?
They are components rather than complete locks. Baldwin Reserve 8BR0618001 is a deadbolt spacer for a double cylinder application. BEST 8T is the T Series tubular deadbolt tube component. Arrow 460 is a mortise lock strike for latchbolt and deadbolt functions with a straight lip, sized for 1-3/4 inch doors. None of the three includes a cylinder or a bolt assembly that would replace a keyed deadbolt. A complete keyed unit is what the Medeco Maxum 11TR53 is, with its 1 inch hardened steel bolt and high-security strike plate; among other brands, Dexter DB1000-SCT and Accentra D111 are complete Grade 1 single cylinder deadbolts.
20) We want to stop rekeying between tenants. What replaces a keyed deadbolt with a code or credential?
The Medeco Maxum 11TR53 controls duplication through the key itself, with the M3 6-pin DL keyway and angle cut keys that require Medeco blanks and a specific cutting machine. Credential-based deadbolts move that control to the lock instead. Delaney KP400 is a Grade 2 electronic deadbolt with a programmable remote. Codelocks CL2200 is a medium duty electronic surface deadbolt in brushed steel, and CL2210 is an electronic mortise deadbolt. Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override, and Nova-D is an RFID multihousing smart electronic deadbolt. Note the prep: the CL2200 mounts to the door face and the CL2210 is mortised, so neither reuses a bored deadbolt cutout.
21) The unit doors need a deadbolt with a thumbturn an older or arthritic hand can operate. What covers that?
Cal-Royal LSD is a Grade 3 single cylinder deadbolt with an ADA ergonomic thumbturn, for doors 1-3/8 to 1-3/4 inch, and it is the model in the group that names the thumbturn shape as the feature. Cal-Royal ED500 is a Grade 3 single cylinder deadbolt with adjustable backset over the same 1-3/8 to 1-3/4 inch range if the bore center is unconfirmed. Where the same opening also has to hold a Grade 1 certification, Cal-Royal CRB800 is a Grade 1 heavy duty single cylinder deadbolt with a UL 3-hour fire rated latch, and the Medeco Maxum 11TR53 is BHMA A156.5 Grade 1 across a 1-3/8 to 2-1/2 inch thickness range.
22) The opening needs more than one bolt point, or a single motion that throws the deadbolt with the latch. What is available?
Two different arrangements cover that. Falcon H2101 is an entrance interconnected lock with a single cylinder deadbolt, Grade 2, where the deadbolt and latch are tied together in one trim. Detex DX Series is a hinge side locking dead bolt set with multi-point security, which adds bolt points on the hinge stile rather than only at the lock edge. Both change the door preparation from a single bored deadbolt hole. The Medeco Maxum 11TR53 is a standalone deadbolt that goes into a 2-1/8 inch crossbore with a 1 inch edge bore to ANSI A115.13, so it pairs with a separate knob or lever rather than replacing one.
23) Will a Medeco Maxum deadbolt hold up to bumping, picking and drilling attacks?
That is what the Maxum is built around. Drill and pick resistance is verified under UL 437 using hardened steel inserts, rotating pins, and drill pins placed in the solid brass cylinder body where a drill would go for the shear line. Bumping and picking are further blocked by the angled key cuts, since a bump key cannot rotate the pins to the angle the sidebar needs. There is also a steel shroud over the bolt itself to defeat ice pick style attacks on the bolt through the gap at the jamb.
24) What finishes does the Medeco Maxum deadbolt come in, and how do I match the hardware already on my doors?
Finish choices are bright brass 605, satin brass 606, antique brass 609, satin brass blackened 610, satin bronze 612, dark bronze oil rubbed 613, satin nickel 619, flat black 622, dark bronze 624, bright chrome 625, satin chrome 626, and antique nickel. Match on the BHMA number rather than the name where you can. Manufacturers describe the same coating half a dozen ways, but 626 satin chrome is 626 everywhere, so if the levers on your other doors carry a finish code, order the deadbolt to that code and the two will read the same on the door.
25) Which deadbolts match a decorative entry set in oil rubbed bronze or black?
The Medeco Maxum 11TR53 is finished in 613 Dark Bronze Oil-Rubbed, 624 Dark Bronze and 622 Flat Black among its finish range, alongside 619 Satin Nickel and 626 Satin Chrome, so it can be brought into a dark bronze or black entry package. Where the trim shape drives the match, Emtek #11 Tuscany is a lost wax cast bronze deadbolt, Baldwin Estates 8011 is a contemporary 1-5/8 inch double cylinder deadbolt, and Baldwin Reserve offers contemporary round and contemporary square double cylinder trims. Bravura 310RC Elite and 310SC Elite cover contemporary round and square in Grade 2. Confirm the rose shape and diameter against the existing set, since the finish code alone does not settle the visual match.
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Does the Medeco 11TR634-26 come with a warranty?
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Product Reviews

  • 5
    Top-Notch Security Upgrade

    Posted by Francis on Sep 25th 2023

    I got the Medeco Maxum Residential Deadbolt from your site. What's impressive is its robust build – feels super secure. On the flip side, installation can be a bit tricky for those not familiar with locks. Overall, a high-security choice for peace of mind.

  • 5
    Top-Notch Security Upgrade!

    Posted by Liam on Sep 1st 2023

    The Medeco Maxum Residential Deadbolt is a real winner. It's like Fort Knox for my door. The captive key adds a layer of security I love. However, it's a bit pricey, but peace of mind is worth every cent.

  • 5
    A Dependable Deadbolt Choice

    Posted by Dex on Aug 23rd 2023

    I recently got the Medeco Maxum Residential Deadbolt from ZenSupply. One thing I love is the sturdy build - feels really secure. However, installation was a bit tricky for me. Overall, a solid choice!

  • 5
    Secure Your Home with Medeco Maxum

    Posted by Oscar on Aug 1st 2023

    I tried the Medeco Maxum Residential Deadbolt, and it's a winner! The M3-6 Pinned Captive Key adds an extra layer of security, making me feel safe at home. However, keep in mind, the price might be a tad high for some. But if you're looking for top-notch protection, this deadbolt is worth it!

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