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Satin nickel tubular deadbolt with captive key cylinder and thumbturn

Medeco

Medeco 11-R634-619-00 Satin Nickel Grade 1 2-3/4" backset door lock

SKU CH-4CFK-6TCGE MPN 11-R634-619-00

Grade 1 deadbolt with captive key cylinder, anti-drill and anti-pry protection, and a 6-pin tumbler for high-security residential and commercial doors

  • FinishSatin Nickel
  • Selling UnitBox
  • Grade 1 certification meets highest ANSI/BHMA 156.30 security standards
  • UL437 listed cylinder resists drilling and picking attacks
  • Captive thumbturn allows safe egress when occupied
  • Satin Nickel US15 finish suits residential and commercial doors
  • 6-pin tumbler with original 00 keyway restricts key duplication

Medeco Maxum Grade 1 Deadbolt

The Medeco Maxum 11-R634-619-00 is a Grade 1 tubular deadbolt with a 6-pin captive key cylinder and Original 00 keyway. It features a satin nickel finish, a 2-3/4" backset and a 1" faceplate. The lock fits doors 1-3/8" to 2-1/2" thick with a 2-1/8" crossbore and 1" edge bore. It is ANSI/BHMA A156.30 and UL437 listed for high security.

Best For Commercial And Heavy Residential Use

This deadbolt suits apartments, retail outlets and residences needing maximum physical protection against drilling, prying and picking. The captive thumbturn allows safe egress when occupied and converts to double-cylinder mode when vacant. Buyers needing a simpler single-cylinder deadbolt without the conversion feature or those with non-standard door thicknesses should look elsewhere.

UL437 Listed 6-Pin Cylinder

The UL437 listed 6-pin cylinder provides triple locking security against picking and unauthorized key duplication. This certification is the primary specification confirming the lock meets high-security standards for commercial and heavy-duty residential applications. The solid brass construction supports the anti-drill and anti-pry resistance required for this listing.

Highlights

  • Grade 1 certification meets highest ANSI/BHMA 156.30 security standards
  • UL437 listed cylinder resists drilling and picking attacks
  • Captive thumbturn allows safe egress when occupied
  • Satin Nickel US15 finish suits residential and commercial doors
  • 6-pin tumbler with original 00 keyway restricts key duplication

Specifications

BrandMedeco
Model11-R634-619-00
FinishSatin Nickel
Selling UnitBox

Questions about this item

How often will the 6-pin tumbler cylinder need re-keying or replacement?

The 6-pin tumbler cylinder is built for Grade 1 durability and UL437 high-security listing; re-keying is only needed if keys are lost or access changes, not on a fixed schedule.

What component reaches its limit first during constant locking cycles?

The captive thumbturn mechanism converts between double-cylinder and thumbturn modes; repeated conversion cycles will wear the internal cam before the solid-brass bolt or cylinder.

Does the lock generate noticeable heat or noise when operated continuously all day?

Mechanical deadbolt action produces only a brief audible click per throw; no motor or electronics means no sustained heat or noise during heavy daily use.

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