3 Lever Mortice Sash Lock - 102mm (4 Inch) Case Depth - Satin Chrome

Catalogue Number:
Full Description Related Products
Product Name Price Qty
20177.1 - Union 3 Lever Mortice Sash Lock - 102mm Case Depth (83mm Backset) - Satin Chrome
£70.02 £58.35

Per Each
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  • 102mm deep case (4 inches).
  • Low level security.
  • For use on doors that require door handles and need to be locked via a standard "chubb" style key.
  • Must be used in conjunction with some form of door handle.
  • Comes supplied with a satin chrome (brushed finish) forend and frame mounted strike plate.


  • Latch is withdrawn via a lever handle from either side of the door (handles sold separately).
  • Deadbolt is locked and un-locked via the supplied cut keys.


  • 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 spindles).
  • Reversible strike plate.


Security Level 

  • Low level security.
  • Suitable for use on internal doors in residential properties.
  • Basic 3 lever cut key.


  • Satin chrome plated - (brushed finish ideal for matching with satin chrome and stainless steel products).


Alternative Finishes Available

  • Polished brass.


  • 102mm case depth (83mm backset).

Diagram and dimensions of 3 lever Union 102mm 4 inch mortice sash lock

Item CodeLock Case Depth (A)Backset To Keyhole (B)
20177.1 102mm 83mm

Options Available To Order

  • Keyed alike - if you would like a number of these locks all to operate under one key please contact us for details and prices.

Rebate Kit For Double Rebated Doors

  • 40829.1 - 13mm satin chrome rebate kit.

Unit Of Sale

  • Each - (1 x lock case supplied with forend, strike plate and 2 keys).
More Information
Item 20177
Item Code 20177
Finish Satin Chrome
Dimensions 102mm Case Depth (4 Inch)
Sold Per Each
Availability Non stock product - please allow 3-7 days for delivery
Non stock product - please allow 3-7 days for delivery
Download PDF Data Sheet