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CISA 57223 60 mm Backset Double-bit-key bolt mortise lock (157223600)

CISA 157223600 is a 57223 series Double-bit-key bolt mortise lock, fixed backset 60 mm. Case height 93 mm, faceplate width 22 mm, bolt-projection stages 2.

CISA 157223600 — Official series illustration, not a photo of this exact size variant; consult model specifications.
Official series illustration, not a photo of this exact size variant; consult model specifications.Image source
CISA 157223600 Fixed backset 60 mm Original measurement guide
Our original diagram: backset 60 mm is the horizontal distance from the door-edge faceplate reference to the key rotation axis. It is not overall case depth or handle centre distance; not to scale; not a product outline or installation drawing.

Lock and fitting dimensions

Dimensions from model documentation
SpecificationsDimensions from model documentation
Backset60 mm
Case height93 mm
Faceplate width22 mm

Check the backset, centre distance, faceplate and mounting points against the specific model drawing.

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Specifications

Product series
57223
Backset
60 mm
Key system
Double-bit key
Body construction
Double-bit-key bolt mortise lock
Case height
93 mm
Faceplate width
22 mm
Case and faceplate finish
Galvanized
Bolt material
Nickel-plated steel
Bolt throw stages (original term Throws)
2

Construction and dimensional compatibility

The fixed backset of 60 mm is measured horizontally from the door-edge faceplate to the key rotation axis; it is not the overall case depth. Case height 93 mm, faceplate width 22 mm, bolt-projection stages 2.

Double-bit-key construction differs from a euro-cylinder lock body; check the existing door's keyhole and operating components. This catalogue group does not list additional connecting rods as standard construction; a similar case does not establish that the interface is present.

Also check the installation space inside the door leaf, strike position and plates on both sides. An identical fixed backset does not make different constructions directly interchangeable.

Limitations

  • The parameter diagram explains only the measurement reference; it is not a product outline and must not be used for drilling or installation.
  • Strikes, extension rods and other accessories offered on request in the catalogue are not standard equipment.
  • Statements of lock-series suitability or certification are not promises of current compliance for any complete door configuration.

Sources

CISA 2026 English catalogue, PDF page 186 / printed page 182

Manufacturer documents are provided in their original language.

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Manufacturer documents are provided in their original language.