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Satin chrome double cylinder deadbolt with brass body and two keyways

Medeco

Medeco 11-C621-626-00 Satin Chrome Double Cylinder Door Lock

SKU CH-F2BE-NH4D1 MPN 11-C621-626-00

Grade 1 double cylinder deadbolt with solid brass construction and UL437 listed cylinders for high security

  • FinishSatin Chrome
  • Selling UnitBox
  • Highest residential security with ANSI/BHMA A156.36 Grade 1 rating
  • Drill and pry resistance from solid brass construction
  • UL437 Listed cylinder for proven high-security performance
  • Double cylinder design requires key on both sides
  • Satin Chrome 626 finish suits commercial and heavy-duty residential doors

Commercial-grade double cylinder deadbolt

The Medeco Maxum 11-C621-626-00 is a Grade 1 double cylinder tubular deadbolt built for commercial and heavy-duty residential doors. Its solid brass construction and UL437 listed cylinders meet ANSI/BHMA A156.36 standards for high-security applications. The satin chrome finish suits office buildings, schools, hospitals and retail outlets where consistent quality is required.

Capacity and headroom

The lock fits doors from 1-3/8" to 2-1/2" thick with a 2-3/8" backset and 1-1/8" faceplate. The Original 00 keyway provides controlled key duplication for managed access environments. Anti-drilling and anti-prying features extend physical resistance beyond standard residential hardware. It does not suit doors outside the stated thickness range or projects needing a single-cylinder or thumb-turn interior operation.

Deciding specification

The ANSI/BHMA Grade 1 rating combined with UL437 listing is the single specification that determines suitability for high-security commercial requirements. This certification confirms the cylinder withstands standardized attack tests that lower grades do not. Buyers needing only residential Grade 2 or 3 security can select less costly hardware without these listings.

Highlights

  • Highest residential security with ANSI/BHMA A156.36 Grade 1 rating
  • Drill and pry resistance from solid brass construction
  • UL437 Listed cylinder for proven high-security performance
  • Double cylinder design requires key on both sides
  • Satin Chrome 626 finish suits commercial and heavy-duty residential doors

Specifications

BrandMedeco
Model11-C621-626-00
FinishSatin Chrome
Selling UnitBox

Questions about this item

Will the 2-3/8" backset align with the existing bore in my older door?

The deadbolt is built for a 2-3/8" backset, a common dimension on many older doors; measure the distance from the edge of the door to the centre of the current hole to confirm it matches before installing.

How can I verify the lock meets the claimed Grade 1 and UL437 ratings once it is fitted?

After installation, check that the cylinder bears the UL437 marking and that the latchbolt extends a full 1" throw; smooth key rotation in both cylinders and a solid, flush faceplate indicate the hardware is functioning to its certified standard.

Does the box include both cylinders, strike plate and mounting screws, or must I purchase any of those separately?

The package supplies the double-cylinder deadbolt body, two Original 00 keyway cylinders, a strike plate and the necessary mounting hardware for doors 1-3/8" to 2-1/2" thick; no additional parts are required for a standard installation.

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