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Bright brass double cylinder deadbolt with two keyways and a rectangular faceplate

Medeco

Medeco 11-R624-605-00 Bright Brass 605 Grade 1 Double Cylinder Deadlock 2-3/4" Backset

SKU CH-256K-YCPP1 MPN 11-R624-605-00

Grade 1 double-cylinder deadbolt with a 2-3/4" backset, 1" faceplate, and Medeco Original 00 keyway for high-security residential and commercial doors

  • Surface finishBright Brass
  • Sold asBox
  • Grade 1 security meets ANSI/BHMA 156.30 standard
  • Double cylinder deadbolt requires key on both sides
  • Bright brass 605 finish resists corrosion and wear
  • 6 pin tumbler cylinder provides pick-resistant operation
  • Fits doors 1-3/8" to 2-1/2" thick with 2-3/4" backset

Medeco Maxum Grade 1 Double Cylinder

The Medeco Maxum 11-R624-605-00 is a Grade 1 double cylinder tubular deadbolt with a bright brass 605 finish. It uses a 6 pin tumbler mechanism and the original 00 keyway for key control. The lock is ANSI/BHMA 156.30 certified and UL 437 listed for high security. Solid brass construction includes anti-drilling and anti-prying features.

Suited for Commercial and Heavy Residential Doors

This deadbolt fits doors 1-3/8" to 2-1/2" thick with a 2-3/4" backset and 1" faceplate. It serves apartments, retail outlets and multi-family units needing keyed entry on both sides. Buyers who want single cylinder operation or electronic access should look at other models. Installers needing a different backset or crossbore size must choose another product.

High Security Cylinder Handles Forced Entry

The UL 437 listed cylinder resists picking, drilling and key duplication attempts. Grade 1 construction withstands heavy use in commercial and multi-family settings. The double cylinder design requires a key for both interior and exterior operation. Users who need quick egress without a key from inside will find this configuration restrictive.

How it compares

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

Price $409.99
Pricier than about 91% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameMedeco
Model name11-R624-605-00
Size & build
Surface finishBright Brass

Questions about this item

Will the 2-3/4" backset and 2-1/8" crossbore match the prep already cut in my door?

Yes, the deadbolt is built for a 2-3/4" backset and a 2-1/8" crossbore, the two most common residential prep dimensions.

Can I keep my existing 1" edge bore latch hole when installing this Grade 1 deadbolt?

The lock requires a 1" edge bore, so your current hole will accept the bolt without enlargement.

How do I verify the cylinder meets the UL437 high-security listing after installation?

Turn the key from both sides; smooth rotation and solid bolt throw confirm the UL437-listed cylinder is functioning correctly.

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