4720ANSI - Round Cylinder Deadlatch

With the development of new products Adams Rite is using their experience and innovation to produce quality products for existing and new markets.

In this section you will find products that meet the needs of almost any security application or standard in Europe.


The Adams Rite 4720ANSI is for use in hollow metal or wooden doors and offers flexible traffic control and a good level of security.

When used in emergency exit applications with a 4591 Paddle Handle the 8360 ramped jaw strike must be fitted to conform with BS EN179:2008


  • Is interchangeable without stile modification with the MS® 1850SNSI Deadlock
  • It is often used in conjunction with the 7100/7400 series Electric Strikes to provide remote access control
  • Accepts any standard mortice cylinder, thumbturn (both with MS® cam) or 4591 Paddle handle (with 4580 cam plug)
  • Designed for use on timber and steel doors.
  • Independantly tested to 1 million cycles



Round Cylinders ~ MS®4043 Cylinder Guard ~ Round Thumbturns
4565 Thumbturn ~ 4568 Lever Handle ~ 4591 Paddle Handle
~ 4590 Timber Mounting Plate ~ 8360 Ramp Jaw Strikes ~ 7100/7400 Series Electric Strikes






Overall Case Size: 202mm x 31.7mm x 54.4mm.
Steel with corrosion-resistant plating.
Backset: 38.1mm (1 1⁄2").
Latch Bolt: 25.4mm x 12.7mm. ZA-27 Zinc, Chrome Plated,
Hardened Steel Internal Pins, plus Anti-Pick baffle.
Latch Throw: 12.7mm.
Auxiliary Bolt: ZA-27 Zinc, Chrome Plated with Hardened Steel
Internal Pins.
Cylinder: Any standard 29.4mm (1 5⁄32") Mortice Cylinder or Thumbturn with MS® cam.
Operation: Turn key/thumbturn or handle to retract latch bolt.
Door Gap: 3 - 5mm.
Forend: Steel, with aluminium faceplate..


Ordering Options
Faceplates - 4720ANSI Faceplate Flat SAA Finish
Lock Bodies - 4720ANSI Deadlatch for Timber & Metal LH
Lock Bodies - 4720ANSI Deadlatch for Timber & Metal RH