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Master Lock

Master Lock Interchangeable Core Door Lock Chrome D Keyway

SKU CH-4ZX4-EH4PH

An uncombinated interchangeable core cylinder with a satin chrome finish, D keyway and six pins for 1 3/8 inch doors

  • TypeUncombinated
  • Uncombinated core allows custom keying on site
  • Satin chrome finish resists corrosion and wear
  • Brass cylinder body withstands heavy daily use
  • Six-pin D keyway compatible with Best systems

Interchangeable Core Door Lock Chrome D Keyway

This Master Lock interchangeable core cylinder is designed for commercial door hardware using Best-compatible keyways. The uncombinated brass core features a satin chrome finish and accepts six-pin D keyway blanks for custom keying systems. It fits standard door thicknesses of 1 3/8 inches and is supplied new for immediate installation.

D Keyway Compatibility Decides Fit

The core only works with locks that accept Best-style D keyway cylinders, so verify your existing hardware before purchase. It will not operate in locks using other keyway profiles or manufacturers' proprietary systems. Buyers needing a different keyway or a pre-combinated core must select an alternative product.

Highlights

  • Uncombinated core allows custom keying on site
  • Satin chrome finish resists corrosion and wear
  • Brass cylinder body withstands heavy daily use
  • Six-pin D keyway compatible with Best systems

Specifications

BrandMaster Lock
TypeUncombinated

Questions about this item

What does the D Keyway mean for key compatibility in my building?

The D Keyway follows the Best keyway profile, so it works with existing Best-compatible master-key systems and D-series key blanks.

How does the uncombinated core affect installation on a 1 3/8 in door?

The core arrives without pins; a locksmith must combine it to your key codes before it will operate in the 1 3/8 in door prep.

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