Mortice Bathroom Lock - 102mm (4 Inch) Deep - Polished Brass

Catalogue Number:
Full Description
Product Name Price Qty
20178.1 - Union Mortice Bathroom Lock - 102mm Case Depth (83mm Backset) - Polished Brass
£51.88 £43.23

Per Each
  • 102mm (4 inches) deep case makes this look ideal for use with mortice door knobs.
  • Privacy lock for use on bathroom doors, toilets and WC doors.
  • For use on doors that require door handles and need to be locked via a thumb-turn and release system.
  • Must be used in conjunction with some form of door handle.
  • Comes supplied with a polished brass forend and frame mounted strike plate.


  • Latch is withdrawn via a lever handle from either side of the door (handles sold separately).
  • Deadbolt can be locked and un-locked via a bathroom thumb-turn and release system (sold separately).
  • This lock can be released from the outside in case of an emergency when used in conjunction with a turn and release.
  • Only a quarter turn is required on the thumb-turn to lock and un-lock the dead bolt.


  • Solid brass deadbolt and latch.
  • Medium weight spring strength ideal for use with sprung lever furniture.
  • Bolt through facility for bolt together fixing lever handles and accessories at 38mm centres.
  • 8mm x 8mm spindle follower (to suit standard UK size door handles).
  • 5mm x 5mm thumb-turn spindle follower (to suit standard UK size turn and release systems).
  • Reversible strike plate.


Security Level 

  • Medium security.
  • Suitable for use on internal doors in residential properties.
  • Privacy lock.


  • Polished brass - (shiny finish ideal for matching with polished brass products).


Alternative Finishes Available

  • Satin chrome.


  • Available in one size only
  • 102mm case depth (83mm backset).

dimensions of the Union 2226 - bathroom mortice lock

Item CodeLock Case Depth (A)Backset To Keyhole (B)
20178.1 102mm 83mm
  • Lever handle follower - 8mm x 8mm.
  • Dead bolt follower - 5mm x 5mm.

Rebate Kit For Double Rebated Doors

  • 40830.1 - 13mm polished brass rebate kit for use with mortice lock.

Unit Of Sale

  • Each - (1 x lock case supplied with forend, strike plate).
More Information
Item 20178
Item Code 20178
Finish Polished Brass
Dimensions 102mm Case Depth (4 Inches)
Sold Per Each
Availability Stock Item
Download PDF Data Sheet