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Satin nickel double cylinder tubular deadbolt with key cylinders on both sides

Medeco

Medeco 11-R623-619-00 double cylinder deadbolt door lock

SKU CH-5986-TXN1R MPN 11-R623-619-00

Grade 1 double-cylinder deadbolt with six-pin tumbler, anti-drill and anti-pry protection, satin nickel finish, 2-3/8" backset, fits doors 1-3/8" to 2-1/2" thick

  • Surface finishSatin Nickel
  • Sold asBox
  • Grade 1 security meets ANSI/BHMA 156.30 standard
  • Double cylinder requires key on both sides
  • 6-pin tumbler resists picking and key duplication
  • Solid brass construction with anti-drill and anti-pry features
  • Fits doors 1-3/8" to 2-1/2" thick with 2-3/8" backset

Medeco Maxum Grade 1 Double Cylinder Deadbolt

The Medeco Maxum 11-R623-619-00 is a Grade 1 double cylinder tubular deadbolt built for high-security residential and commercial doors. It uses a 6-pin tumbler cylinder with the Original 00 keyway to provide triple locking protection against picking and unauthorised key duplication. Solid brass construction adds resistance to drilling and prying attacks. The satin nickel finish suits a variety of property styles.

Door preparation and keyway compatibility

Verify that your door thickness falls between 1-3/8" and 2-1/2" and that the existing bore holes match the 2-1/8" crossbore and 1" edge bore dimensions. The lock requires a 2-3/8" backset and a 1" wide faceplate cutout. Because this model uses the Medeco Original 00 keyway, existing Medeco keys from other keyways will not operate this cylinder. Double cylinder function means a key is needed on both sides, which affects egress planning.

Certified strength and durable operation

The cylinder carries ANSI/BHMA A156.30 Grade 1 certification and UL 437 listing, confirming its resistance to forced entry and physical attack. Solid brass components and the anti-drill, anti-pry design maintain integrity under sustained abuse. Mechanical key operation on both sides eliminates electronic failure points and produces no operational noise. No batteries or wiring are involved, so power draw is zero.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $388.99
Pricier than about 91% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameMedeco
Model name11-R623-619-00
Size & build
Surface finishSatin Nickel

Questions about this item

Does the 11-R623-619-00 box include keys, or must they be cut separately?

The lock ships with two keys cut to the Original 00 keyway, so no separate key cutting is required for initial installation.

How do I choose between the Grade 1 double-cylinder and a single-cylinder version for my 1-3/4" thick door?

Select the double-cylinder 11-R623-619-00 when you need a key on both sides — such as doors with adjacent glass — and confirm your door thickness falls within the 1-3/8" to 2-1/2" range.

What does the ANSI/BHMA 156.30 Grade 1 and UL 437 listing mean for daily use on a front door?

It certifies the deadbolt resists picking, drilling and forced entry to the highest residential and commercial standard, so the lock maintains security under sustained attack.

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