Medeco 11R50W Maxum Single Cyl...
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$315.00
$307.65
Medeco 11R50W Maxum Single Cylinder Deadbolt, Biaxial, G3 Keyway, UL 437 High-Security

Medeco 11R50W Maxum Single Cylinder Deadbolt, Biaxial, G3 Keyway, UL 437 High-Security

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Model: MED-11R503W-13-G3P
$315.00
$307.65
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$315.00
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Medeco 11R50W Maxum Single Cylinder Deadbolt — Biaxial, G3 Keyway, UL 437 High-Security

The Medeco 11R50W Maxum Single Cylinder Deadbolt delivers benchmark residential security through advanced Biaxial technology and the G3 Keyway system, combining physical durability with superior key control. Engineered with hardened steel inserts, rotating pins, and a solid 1" hardened steel bolt housed in heavy-gauge steel, this deadbolt resists picking, drilling, bumping, wrenching, and kicking in full compliance with UL 437 standards. 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 integrates seamlessly into new and existing residential door preparations. It can be master keyed into Medeco M4, M4 BiLevel, and M4 CLIQ systems for expanded key management flexibility.

Key Features

  • Door Thickness Compatibility: Fits doors 1-3/8" to 2-1/2" thick, accommodating a wide range of residential door constructions.
  • Standard Door Preparation: Requires a standard 2-1/8" crossbore and 1" edge bore per ANSI A115.13 prep for straightforward installation.
  • Solid 1" Hardened Steel Bolt: Heavy-gauge steel housing and a 1" hardened steel bolt provide exceptional resistance to crowbar attacks, wrenching, and brute-force impacts.
  • Biaxial Sidebar Technology: The key must be elevated, rotated, and aligned before the lock will operate, offering multi-layered protection against picking and bumping.
  • Advanced Key Control — Medeco 4 Utility Patent: Protects against unauthorized key duplication; special angle-cut keys are available only through authorized Medeco providers, with protection from 3D printing via a unique movable element in the key design.
  • Maximum Drill Resistance: Solid brass construction with strategically placed drill pins and a heavy-duty steel shroud guard against drilling and "ice pick" attacks.
  • Reinforced Strike Plate: Includes 2" anchor screws to resist forced entry via kick-ins.
  • Master Keying Capability: Compatible with Medeco M4, M4 BiLevel, and M4 CLIQ master key systems for flexible key management across multiple access points.
  • Multiple Finish Options: Available in 14 finishes including Bright Brass (05), Satin Brass (06), Antique Brass (09), Satin Brass Blackened (10), Bright Bronze (11), Satin Bronze (12), Oil Rubbed Bronze (13), Bright Nickel (18), Satin Nickel (19), Antique Nickel (20), Black (22), Dark Bronze (24), Bright Chrome (25), and Satin Chrome (26).

Certifications & Compliance

  • ANSI/BHMA A156.36 Grade 1 Certified
  • UL 437 Listed for Pick and Drill Resistance

Technical Specifications

  • Series: Maxum® Residential Deadbolt
  • Cylinder Technology: Medeco Biaxial
  • Pinning: 5 or 6-Pin
  • Keyway: G3 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 Homes and Condominiums
  • Apartment and Rental Properties
  • High-Value Residential Installations
  • Multi-Unit Residential Complexes
  • Vacation and Secondary Residences
  • Property Management Portfolios Requiring Master Key Systems
  • Upscale Residential Developments

Why Medeco?

Medeco Maxum deadbolts are engineered to the highest residential security standards, combining solid brass and hardened steel construction with Biaxial rotating-pin technology and UL 437 certification for pick and drill resistance. ANSI/BHMA A156.36 Grade 1 rated and built to withstand crowbar attacks, wrenching, bumping, and brute-force impacts, the Maxum delivers professional-grade protection for demanding residential applications where dependable, long-term security performance is essential.

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:
Residential
Keyed:
Yes
Grade:
Grade 1
Duty Level:
Heavy Duty
Technology:
Biaxial
Keyed Function:
Single Cylinder
Lock Function:
Deadbolt
Tags:
medeco 4 maxum deadbolt, medeco deadbolt
Product Model:
11R50W
Product Function:
Cylinder x Thumbturn
Keyway Options:
G3 Keyway
Product Category:
Mechanical Locks
Department:
Door Hardware

Medeco MED-11R503W-13-G3P – Frequently Asked Questions

1) Will the Medeco 11R50W Maxum deadbolt fit my existing deadbolt hole, or does the door need new prep?
If the door already has a standard deadbolt prep, the 11R50W drops in. It uses a 2-1/8 inch crossbore and a 1 inch edge bore per ANSI/BHMA A115.13, which is the same prep the common residential deadbolt uses, and it covers doors 1-3/8 to 2-1/2 inches thick. Backset is ordered, not adjustable, so measure from the door edge to the center of the bore and pick either the 2-3/8 inch or the 2-3/4 inch version, both with a 1 inch faceplate.
2) Can a Medeco Maxum deadbolt go on a thick solid wood or double-thickness entry door?
Up to 2-1/2 inches, yes. The Maxum 11R50W is rated for doors 1-3/8 to 2-1/2 inches thick, which covers heavier custom and solid wood entries that a typical 1-3/8 to 1-3/4 inch deadbolt will not reach. For reference, the Dexter DB1000 single cylinder deadbolt tops out at 1-7/8 inches and the Hager 3215 at 1-3/4 inches.
3) What do I have to specify when ordering a Medeco 11R50W deadbolt?
Four choices decide the part: backset (2-3/8 or 2-3/4 inch, both 1 inch faceplate), cylinder pinning (5 pin or 6 pin), finish (12 options from 605 bright brass through 622 flat black and 626 satin chrome), and whether the cylinder ships pinned or sub-assembled. On top of that, keying is a required selection: keyed different, keyed alike, or to a specific keycode you supply. Sub-assembled is the option a locksmith takes when the cylinder is being pinned into an existing G3 system in the shop.
4) Can I key Medeco Maxum deadbolts alike across a building or into an existing master key system?
Yes on both counts. Order keyed alike and every deadbolt on the order operates from one key; order to a keycode and the cylinders are cut to a code you already have on file, so new units join the doors already installed. The cylinder is a G3 keyway Biaxial and can be master keyed into Medeco M4, M4 BiLevel, and M4 CLIQ systems, which is how a property manager runs one master over a portfolio while each unit keeps its own change key. Keys are angle cut and only available through authorized Medeco providers, so tenants cannot get copies at a hardware counter.
5) Is a Medeco Maxum worth it over a standard Grade 1 deadbolt like the Falcon D111 or Delaney LM?
They are graded the same but they solve different problems. The Falcon D111 and the Delaney LM Series are Grade 1 cylinder x thumbturn deadbolts, which means they meet the same strength and cycle standard. What the Maxum adds is attack and key control: a Biaxial cylinder where the key has to be elevated, rotated and aligned before it turns, hardened steel inserts and drill pins, and a UL 437 listing for pick and drill resistance. Also the Medeco 4 utility patent, so keys cannot be duplicated outside an authorized provider. If your risk is someone picking, bumping or copying a key, that is the Maxum. If your risk is just force on the door, a standard Grade 1 does the job.
6) Does the 11R50W have a key on both sides, and what if I need one on a glass front or sidelite door?
The 11R50W is single cylinder: key outside, thumbturn inside. That is the wrong choice next to glass, because breaking the glass gets a hand to the turn. For those openings order a double cylinder deadbolt, keyed both sides, such as the Dexter DB1000 double cylinder or the Design Hardware D1 Series, both Grade 1. Check your local egress code first, since keyed-both-sides is restricted on some occupancies.
7) I already have Medeco keys on the property. Will the 11R50W work on my keys?
Only if your existing system is a G3 keyway. The 11R50W cylinder is Biaxial in the G3 keyway, and it will master key into Medeco M4, M4 BiLevel, and M4 CLIQ systems. Order it to keycode and supply your code, or order sub-assembled and have your locksmith pin it to the system. A Medeco cylinder on a different keyway will not accept your keys.
8) What is the closest Grade 1 single cylinder deadbolt to the Medeco 11R50W Maxum if a high-security keyway is not required?
The Medeco 11R50W Maxum is a Grade 1 single cylinder deadbolt in a cylinder x thumbturn function, built around a Biaxial cylinder in the G3 keyway. If the opening only needs the Grade 1 body and a conventional cylinder, the Accentra D111 is a Grade 1 single cylinder deadbolt in cylinder x thumbturn function with a 2-3/8 inch backset and a 1-3/8 inch to 1-3/4 inch door thickness range, and the Dexter DB1000 single cylinder deadbolt is Grade 1 cylinder x thumbturn for doors 1-3/8 inch to 1-7/8 inch thick. Both are keyed on standard cylinders rather than the Biaxial angle-cut key system, so they will not master key into a Medeco M4 system.
9) The Medeco 11R50W Maxum fits doors up to 2-1/2 inches thick - what else covers a thick door?
The Maxum 11R50W is built for doors 1-3/8 inch to 2-1/2 inch thick on a standard 2-1/8 inch crossbore and 1 inch edge bore. Among comparable deadbolts, the Corbin Russwin DL3011 Grade 1 cylindrical deadlock covers 1-3/4 inch to 2-1/4 inch doors, and the Deltana 7312KA2 Grade 3 double cylinder deadbolt covers 1-3/8 inch to 2 inch. Note the DL3011 is a cylinder x blank deadlock, not a thumbturn, and the 7312KA2 is keyed on both sides - neither gives the inside thumbturn the Maxum has.
10) What should I use instead of the Medeco 11R50W Maxum if the door needs a key on both sides?
The Maxum 11R50W is a single cylinder deadbolt - key outside, thumbturn inside. For an opening that has to be keyed from both faces, the Dexter DB1000 double cylinder deadbolt is Grade 1 for doors 1-3/8 inch to 1-7/8 inch thick, the Design Hardware D1 Series is a Grade 1 extra heavy duty double cylinder deadbolt for 1-3/4 inch doors, and the Hager 3214 is a Grade 2 double cylinder deadbolt for 1-3/8 inch to 1-3/4 inch doors. Double cylinder deadbolts are restricted on egress doors in many jurisdictions, so confirm the code path before specifying one.
11) Is the Falcon D111 a substitute for the Medeco 11R50W Maxum deadbolt?
They are not the same function. The Falcon D111 is a Grade 1 heavy duty classroom deadbolt with an adjustable backset - classroom function means the bolt is thrown and retracted by key, which is a different operation from the Maxum 11R50W, a Grade 1 cylinder x thumbturn deadbolt where the inside turn always retracts the bolt. The Hager 3118 is likewise a Grade 1 classroom deadbolt. Use a classroom deadbolt where staff must control the bolt by key from the corridor; use the Maxum where an occupant needs to throw and release it by hand from inside.
12) I need a deadbolt for a fire-rated opening - does the Medeco 11R50W Maxum suit, or is there a better fit?
The Maxum 11R50W is a residential-duty Grade 1 deadbolt carrying a UL 437 listing for pick and drill resistance, which is a cylinder attack rating rather than a door assembly rating. Where the drawing calls for fire-rated hardware, the Cal-Royal CRB800 is a heavy duty single cylinder deadbolt with a UL 3-hour fire rated latch, and the Hager 3115, 3215, 3214 and 3118 deadbolts all carry a fire rating for doors 1-3/8 inch to 1-3/4 inch thick. Match the assembly label first, then pick the cylinder.
13) Which deadbolt takes an interchangeable core instead of the Medeco 11R50W Maxum's Biaxial cylinder?
The Maxum 11R50W ships with a Medeco Biaxial cylinder in the G3 keyway, available 5-pin or 6-pin and either pinned or sub-assembled, and master keys into Medeco M4, M4 BiLevel and M4 CLIQ systems. If a facility is standardized on an interchangeable core system instead, the Deltana CL200LAIC is a Grade 2 single cylinder deadbolt prepped for an interchangeable core with a 2-3/4 inch backset, the Arrow E61 26D IC is SFIC prep less core, and the Delaney LM Series is a Grade 1 single cylinder less core deadbolt in dull chrome US26D. Those take your existing cores; the Maxum keys into a Medeco system.
14) Should I order the 5 pin or the 6 pin Medeco Maxum cylinder?
The 6 pin cylinder gives more possible key changes, which matters when the deadbolt is going into a master key system with a lot of doors under it. A 5 pin is enough for a standalone door or a small keyed alike group. Match whatever your existing Medeco G3 system is pinned to, because a 5 pin and a 6 pin cylinder cannot share the same key bitting.
15) How well does the Medeco Maxum hold up to someone kicking or prying the door?
The bolt is 1 inch of solid hardened steel in a heavy gauge steel housing, which is what resists a crowbar or a wrench on the exposed bolt. The reinforced strike plate ships with 2 inch anchor screws so the strike bites into the jamb framing rather than just the casing, which is where most kick-ins actually fail. Rated Grade 1 and heavy duty.
16) What is a lower-cost Grade 2 alternative to the Medeco 11R50W Maxum deadbolt for rental turns?
For rental doors that do not need the Biaxial key control of the Maxum 11R50W, several Grade 2 single cylinder deadbolts run the same cylinder x thumbturn function: the Arrow DBX61, the Dexter DB2000 for 1-3/8 inch to 1-3/4 inch doors, the Cal-Royal CB160 with a tamper-resistant cylinder guard, and the Hager 3215 with a 1 inch throw. The Maxum also carries a 1 inch bolt and a UL 437 listing for pick and drill resistance, so the trade in moving to a Grade 2 body is key control and attack resistance, not function.
17) Which deadbolts look like the Medeco 11R50W Maxum but do not accept a keyed cylinder?
The Maxum 11R50W is a keyed single cylinder deadbolt with a Biaxial G3 cylinder. Two comparable parts share the deadbolt shape but not the keyed side: the Arrow E60 is a Grade 2 exit deadlock, non-keyed, blank plate x thumbturn for 1-3/8 inch to 1-3/4 inch doors, and the Callan 205S is a Grade 3 one-sided half-bore deadbolt. Both are thumbturn-operated only, so neither gives you outside key access. A third to watch for is the Arrow E61 26D IC, which is prepped for a small format interchangeable core and ships less core - the cylinder is a separate order.
18) What are the alternatives to the Medeco 11R50W Maxum if I want keypad or credential access instead of a key?
The Maxum 11R50W is a mechanical deadbolt keyed on a Biaxial G3 cylinder with a thumbturn inside. For the same deadbolt opening driven electronically, the Delaney KP400 is a Grade 2 electronic deadbolt with a programmable remote, the Codelocks CL2200 is a medium duty electronic surface deadbolt, the Codelocks CL2210 is an electronic mortise deadbolt, and the Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override. The surface and mortise electronic units do not use the same 2-1/8 inch crossbore prep the Maxum drops into, so confirm the door prep before switching.
19) The Medeco 11R50W Maxum comes in 2-3/8 inch and 2-3/4 inch backsets - what if I do not know the backset on the door?
The Maxum 11R50W is ordered to a fixed backset, either 2-3/8 inch or 2-3/4 inch, each with a 1 inch faceplate, so the crossbore has to be measured before ordering. Where the backset is unknown or varies across a portfolio, adjustable-backset deadbolts cover both dimensions from one part: the Brinks Raleigh E2401 and Mendocino E2402 both use a 4-way adjustable backset in a single cylinder cylinder x thumbturn deadbolt, and the Cal-Royal ED500 is a Grade 3 single cylinder deadbolt with adjustable backset for 1-3/8 inch to 1-3/4 inch doors.
20) Is the Emtek 2050 European mortise deadbolt an alternative to the Medeco 11R50W Maxum?
Not for the same door prep. The Maxum 11R50W is a bored deadbolt that drops into a standard 2-1/8 inch crossbore with a 1 inch edge bore per ANSI A115.13. The Emtek 2050 and 2051 are European mortise deadbolts with an integrated roller latch in cylinder x thumbturn function, which need a mortise pocket cut into the door edge. The Dormakaba D900 small case mortise deadbolt and the Codelocks CL200 surface deadbolt are also different preps. Substituting either way means re-prepping the door, not swapping hardware.
21) Which deadbolt has an ADA-friendly thumbturn compared to the Medeco 11R50W Maxum?
The Maxum 11R50W is a cylinder x thumbturn deadbolt, keyed outside and turned by hand inside. Where the inside turn has to be operable without tight grasping or twisting, 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 thick. It is a lighter-grade body than the Grade 1 Maxum, so the choice is between the ergonomic turn and the heavier duty rating.
22) Can I get a Medeco Maxum deadbolt to match black or oil rubbed bronze hardware already on the door?
Twelve finishes are available on the 11R50W: 605 bright brass, 606 satin brass, 609 antique brass, 610 satin brass blackened, 612 satin bronze, 613 dark bronze oil-rubbed, 619 satin nickel, 620/20 antique nickel, 622 flat black, 624 dark bronze, 625 bright chrome, and 626 satin chrome. For a black package take 622; for oil rubbed bronze take 613, and note 624 dark bronze is a separate, non-rubbed finish.
23) Is the Maxum deadbolt a commercial lock or a residential one?
Medeco lists the Maxum as its residential deadbolt line, and this one is built for houses, condos, apartments and multi-unit portfolios where key control matters. It is Grade 1 and heavy duty, so it is not underbuilt, but for a commercial opening that needs a deadlock in a cylindrical or mortise prep, look at the Corbin Russwin DL3011, a Grade 1 cylindrical deadlock for 1-3/4 to 2-1/4 inch doors.
24) I want a decorative deadbolt to match trim on an upscale home - how do those compare to the Medeco 11R50W Maxum?
The Maxum 11R50W is a residential heavy duty Grade 1 deadbolt offered in twelve finishes from bright brass 605 through flat black 622 and satin chrome 626, with the security coming from the Biaxial cylinder rather than the trim. Where the appearance drives the choice, the Emtek #11 Tuscany is a lost wax cast bronze deadbolt in cylinder x thumbturn function, the Baldwin Reserve contemporary round and square deadbolts are double cylinder, and the Bravura 310RC and 310SC Elite are Grade 2 contemporary round and square single cylinder deadbolts. Those are trim-led designs; the Maxum is cylinder-led.
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Does the Medeco MED-11R503W-13-G3P come with a warranty?
Absolutely. The Medeco MED-11R503W-13-G3P is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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