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ERA 231 Fortress - BS 5 Lever Deadlock (67mm, Polished Brass)

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29th August 2019


  • Locked by Key on either side.
  • Keyhole is 44mm backset from forend.
  • 67mm deep case.
  • 23mm bolt projection.
Ref: ERA-231-67

Product Details

A 67mm
B 44mm
C 89mm
D 134mm
E 26mm
Case Depth
Case Height
Forend Length
Forend Width
Show Imperial »
Mortice TypeDeadlock
Lock Mechanism5 Lever
Key Differs1,000
Bolt Projection23mm
Backset (keyhole)44mm
ColourPolished Brass
Product FileDownload
Insurance Approved*BS3621:2007
HandedLeft, Right
Keyed Alike Free Upgrade
* Insurance approval may vary due to conditions and location. Please check with your underwriter.
In The Box
Lock CaseYes
Strike PlateYes

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Keyed Alike

Keying Options (select at checkout)

Keyed to Differ or Keyed Alike locks?

As standard the ERA 231 Fortress - BS 5 Lever Deadlock (67mm, Polished Brass) is supplied Keyed to Differ which means the lock includes a set of keys that are unique and will only open this lock. If you require multiple locks you can choose to have them all Keyed Alike, meaning that each lock can be opened using the same key.

What is Keyed to Differ?

  • Keyed to Differ is the standard way a lock is supplied.
  • Each lock is opened by its own unique key.
  • Each lock includes a unique set of keys.
  • Covered by our returns policy.

What is Keyed Alike?

  • Each key can open multiple locks - the same key could unlock your house and office.
  • Locks need to be the same brand and number of levers.
  • Keyed Alike locks include one set of keys regardless of how many locks are purchased.
  • Made to order so NOT covered by our returns policy.
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