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3 Lever Mortice Door Fire Rated Sash Lock (Keyed Alike/Differ)

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Give our sales team a call on 01752 422 501 and we'll happily beat any genuine advertised price.

Additional Information

Product code: Z/ZUKS3
Brand: Zoo Hardware
Estimated delivery:
£17.51 inc vat
£14.59 ex vat
  • 1+ £17.51
    inc vat
    ex vat
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Steel (with solid brass latch and bolt)

TYPE:3 Lever Sash Lock


FINISH:Brass or Stainless Steel plates

ADDITIONAL FEATURES:Set of 2 keys included.Keyed To Like or Keyed To Differ






This high quality 3 lever fire rated sash lock that has been approved by BritishStandards and CE marked. The sash lock comes in two different finishes and sizes, we also offer a keyed alike/differ option.

  • Available in a2 �?" or 3" size

  • 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

  • Click here for downloadable instructions for reversing operation of lock

  • Click here for matching sash lock rebate kits


Frequently Asked Questions


Q:Is this sash lock reversible?

A:Yes, the latch on this sash lock can be easily turned around to enable it to be used with left or right hand configurations. For instructions please seedownloadable instructions

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 professionalspecification.

Q:What does 'BSEN 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



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.

Fire rating specification:


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.



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All delivery charges are included in the final shopping basket and are dependent on the products Scottish Highlands & the Islands where additional shipping charges will apply.

Please note that not all products will incur an additional delivery charge to the Scottish Highlands & the Islands – this is based on the costs from the manufacturer, distributor or courier providing shipping on our behalf. If your delivery address is in the Scottish Highlandsand Islands, a member of our helpline team will contact you prior to processing your ordershould an additional delivery charge apply.

While we make every effort to ensure orders are delivered by the date required, we cannot guarantee availability from the manufacturer or the manufacturer's delivery schedules.

Any variation to web delivery date given will be advised to you by email or telephone. If we are unable to make delivery because access is not possible, we reserve the right to make a failed delivery charge.

View full transport policy »

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3 Lever Mortice Door Fire Rated Sash Lock (Keyed Alike/Differ)

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3 Lever Mortice Door Fire Rated Sash Lock (Keyed Alike/Differ)

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