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5 Lever Mortice Door Fire Rated Dead Lock (Keyed Alike/Differ)

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Product Description

MATERIAL: Steel (with solid brass latch and bolt)
TYPE: 5 Lever Dead Lock
STYLE: Mortice
FINISH: Brass or Stainless Steel plates
ADDITIONAL FEATURES: Set of 2 keys included. Keyed Alike or Keyed To Differ


This high quality 5 lever fire rated dead lock that has been approved by British Standards and CE marked. The sash lock comes in two different finishes and sizes, we also offer a keyed alike/differ option.

  • Available in a 44.5mm" or 57mm backset
  • Available in a brass or stainless steel finish
  • FD 30/60 certifire tested
  • Solid brass latch and deadbolt
  • Sintered steel follower
  • Short travel latch function
  • Grip tight spring follower
  • Includes plastic black box
  • Keyed alike or keyed to differ available
  • Suitable for use fire/smoke door assembly's tested to EN 1634-1
  • BS EN 12209: 2003 Grade 2
  • CE marked


Frequently Asked Questions

Q: What does 'BS EN 12209: 2003 Grade 2' mean?

A: This standard states that the product has been tested to British and European standards provide greater durability, longer warranty periods, peace of mind and evidence of professional specification.

Q: What does 'BS EN 1634-1' mean?

A: This standard states that the product has passed fire resistant tests to British and European standards.

Q: What does 'CE marked' mean?

A: This standard indicates to governmental officials that the product may be legally placed on the market in their country.


Please note that all measurements are subject to a tolerance of +/- 3mm

BACKSET: 44.5 or 57mm
CASE WIDTH: 67.5 or 79.5mm

Technical Information

This is a premium product which has been manufactured to the highest standards in a quality controlled and certified environment. These products are typically of European origin and have been manufactured, finished and packaged using the latest technology. 

Each digit refers to a particular feature of the product measured against the standards performance requirements.

DIGIT 1 : Category of Use

Three grades are identified:

Grade 1 - Low frequency of use with a high incentive to exercise care and a small chance of misuse, e.g. internal residential doors

Grade 2 - Medium frequency of use by people with some incentive to exercise care but where there is some chance of misuse, e.g. internal office doors

Grade 3 - High frequency of use by public or others with little incentive to exercise care and with a high chance of misuse, e.g. public doors


DIGIT 2 : Durability

Twelve grades are identified with maximum figures for deadbolt and snib operation, and latch bolt operation with and without side load.


DIGIT 3 : Door Mass and closing force

Nine grades are identified with maximum figures for closing force at various door masses. Note: Closing force is from a standing start: i.e. fully extended latch bolt in contact with striking plate at start of test.


DIGIT 4 : Fire resistance

Two grades are identified for single axis hinges:

Grade 0 - Not approved for use on fire/smoke door assemblies

Grade 1 - Suitable for use on fire/smoke door assemblies and tested to BS EN 1634-1 etc


DIGIT 5 : Safety



DIGIT 6 : Corrosion resistance

Eight grades are identified neutral salt-spray with and without temperature resistance


DIGIT 7 : Security

Seven grades are identified with maximum figures relating to physical attack, with or without drilling.


DIGIT 8 : Field of door application

Fifteen grades are identified for differing applications - hinged or sliding doors with rim or mortice locks with either keyless egress from inside or key locking from both sides. The grading determines which application is appropriate. In addition, there is a requirement that lock/latch should not be removable from outside or, for grades K to R, from inside using "standard" tools. Grades H and P require support for the lock case when installed.


DIGIT 9 : Type of key operation and locking

Nine grades are identified for differing types of keys operation. The grading determines how the lock is assessed for deadlocking. There is a maximum key torque operating requirement of 1.5Nm and a minimum key strength requirement of 2.5Nm.


DIGIT 10 : Type of spindle operation

Nine grades are identified relating to the number of differs and levers:

Grade 0: no requirements

Grade A: minimum 3 detaining elements

Grade B: minimum 5 detaining elements

Grade C: minimum 5 detaining elements, extended number of effective differs 

Grade D: minimum 6 detaining elements

Grade E: minimum 6 detaining elements, extended number of effective differs 


Digit 11 : Key identification

9 grades are identified relating to the number of differs and levers, grade 0 relates to a latch with no locking action.

Product Documents

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Size 57mm
Finish Stainless Steel
Keyed Type Keyed To Differ
Keyed Alike

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5 Lever Mortice Door Fire Rated Dead Lock (Keyed Alike/Differ)

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