Medeco Maxum® M4 Residential Double Cylinder Deadbolt, DL Keyway, Capt – Golden Locks Inc .

Medeco Maxum® M4 Residential Double Cylinder Deadbolt, DL Keyway, Captive Key

MEDECO
Maxum Residential Double Cylinder
$605.00 $395.00
Door Handing
Color :
Cylinder :
Backset :

Medeco Maxum® M4 Residential Deadbolt – UL 437 | BHMA Grade 1 Certified

The Medeco 4 Maxum® Residential Deadbolt is one of the most secure and durable Grade 1 deadbolts on the market, offering premium protection for homes, apartments, and light commercial properties. Engineered to exceed UL 437 standards, this commercial deadbolt integrates hardened steel inserts, rotating pins, and a robust locking system to defend against picking, drilling, bumping, kicking, and other physical attacks.

Whether you're looking for a Medeco deadbolt, a high-security Medeco M4 deadbolt, or a specialized Medeco double cylinder deadbolt, the Maxum line delivers unmatched performance.

Specifications :

Body Material: Solid brass


Core Type: Fixed, Interchangeable

Cross Bore: 2 1/8"

Cylinder Format: Conventional, Small Format

Cylinder Pins: 5 pin, 6 pin

Cylinder Type: Component

Deadbolt Type: Bored

Device Type: Mechanical

Edge Bore: 1"

Grade: Grade 1

Key System: Mechanical

Latch Type: Deadlocking

Latchbolt Throw: 1"

Latchbolt Type: Deadbolt

Lock Type: Deadbolt

Maximum Backset Depth: 2 3/4"

Minimum Backset Depth: 2 3/8"

Maximum Door Thickness: 2 1/2"

Minimum Door Thickness: 1 3/8"

Number of Keys: 2

Patented: Yes

Security Type: High Security [UL 437], Patented

UL Listed: Yes

ULC Listed: Yes

Warranty: 2-year limited warranty

Weather Resistance: Indoor/Outdoor

Key Benefits of the Medeco M4 Locking System

  • Medeco 4 (M4) Technology: Patent-pending key control and a movable element in the key prevent unauthorized key duplication—including 3D printed copies.

  • Angled Key Cuts: Increase the number of available key combinations for enhanced master keying capabilities.

  • Master Keying: Supports integration with M4, M4 BiLevel*, and M4 CLIQ* systems for large-scale keying architectures.

  • Solid Brass & Steel Construction: With a hardened 1” steel bolt and heavy-gauge tubular steel housing, the Maxum defends against crowbar, ice-pick, and wrench attacks.

Configurations

  • Single Cylinder

  • Medeco Double Cylinder Deadbolt

  • Medeco Captive Key Deadbolt: Allows for thumbturn operation when occupied and converts to a secure double-cylinder when not in use.

Certifications & Standards

  • ANSI/BHMA A156.36 Grade 1

  • UL 437 Listed for drill and pick resistance

  • BHMA A156.30 Certified for patented key control and duplication protection.


Return and Refund Policy

Thank you for shopping at Golden Locks Inc.

If, for any reason, You are not completely satisfied with a purchase We invite You to review our policy on refunds and returns.

The following terms are applicable for any products that You purchased with Us.

Return, Cancellation & Special Order Policy

Golden Locks Inc. sells professional door hardware, security products, and custom-configured items.
Due to the nature of these products, the following policies apply to all purchases made through our website or store. By placing an order with Golden Locks Inc., the customer agrees to the terms outlined below.

Order Changes & Cancellation Policy :

• Customers may request order changes, modifications, or cancellations within 24 hours of placingnan order.
• Requests must be submitted by email to CS@GoldenLocksinc.com.
• After 24 hours, the order may already be processed, allocated from inventory, submitted to thenmanufacturer, entered into production, or prepared for shipment.
• Orders canceled after 24 hours are subject to a minimum 25% restocking and processing fee.
• Golden Locks Inc. reserves the right to refuse cancellation if the order has already been shipped, manufactured, customized, cut, keyed, or assembled.

Custom Orders / Special Orders (Non-Cancelable & Non-Returnable)

• Many products sold by Golden Locks Inc. are custom-configured or special-ordered directly from manufacturers.
• Examples include Emtek configured hardware, Hoppe multipoint trim sets, special finish hardware, multipoint lock components, keyed cylinders, and custom door hardware configurations.
• Once these orders are submitted to the manufacturer, they cannot be canceled, returned, or refunded. 

Standard Return Policy (Stock Items Only)

• Return request must be submitted within 30 days of delivery.
• Product must be unused, uninstalled, and in original packaging.
• Approved returns are subject to a 25% restocking fee and deduction of original shipping costs.
• Customer is responsible for return shipping costs.

Non-Returnable Products

• Custom or special-order hardware
• Emtek configured products
• Hoppe trim sets and multipoint hardware
• Keyed locks or cylinders
• Cut keys
• Electronic locks once powered or installed
• Safes once delivered or installed

• Clearance or discounted items
• Items showing signs of installation

Shipping Claims (Damage or Missing Items)

• Customers must inspect shipments immediately upon delivery.
• Claims for damage, missing parts, or incorrect items must be reported within 48 hours of delivery.
• Customers must provide photos of the product, packaging, and shipping label.

Chargebacks & Payment Disputes

• Customers agree to the policies stated on this page when placing an order.
• Golden Locks Inc. may provide order confirmations, shipping confirmations, tracking information, and policy acceptance records to payment processors in the event of disputes.

Return Authorization Required

• All returns require a Return Merchandise Authorization (RMA).
• Unauthorized returns may be refused.

Product Page Notice (Recommended)

• This product may be custom ordered or configured to your specifications.
• Orders may only be canceled or modified within 24 hours.
• After 24 hours a 25% restocking fee applies.
• Custom and special-order items are non-cancelable and non-returnable once processed.

Contacting Us

Please contact us with as much information about your return request as possible. We will need:

  • Your order ID.
  • First and last name.
  • Phone number : +1-800-385-7725
  • The items you wish to return (if your order contains multiple items.)
  • The reason for your return.
  • Any relevant return details or images.
  • By visiting this page on our website: https://goldenlocksinc.com/pages/contact-us

Not providing this information may delay your return.

Email

Please email us at CS@GoldenLocksinc.com to authorize a return.

Return Address

Golden Locks Inc.
16371 Gothard Street, Suite G
Huntington Beach, CA 92647
United States

Medeco Maxum® M4 Residential Double Cylinder Deadbolt, DL Keyway, Captive Key
05 - Bright Brass / 5 Pin / 2-3/8" Backset - 1" Faceplate - $395.00
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