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skip to Lockmaster Slave Lock Gearbox Single Spindle Sprung - 92mm Centres

Lockmaster Slave Lock Gearbox Single Spindle Sprung - 92mm Centres

£44.92

(£37.43 ex VAT)

sku: L34038
  • Specifically designed for the 2nd leaf of French doors
  • Single spindle, sprung gearbox mechanism
  • 35mm backset and 92mm centres for standard compatibility
  • Large 228mm case height with 50mm width
  • Slave centre case design without latch or bolt
  • Secure lift-lever operation for easy engagement
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When ordering multiple Keyed Alike locks, only 1 set of keys are provided as all additional locks are made to work from that key.

If ordering 4 or more keyed alike locks you can have them set up as different groups. If Required: Let us know the details in the "Specific Key Requirements" field above.

Each group of locks will then receive keys.

tick Slave

The Lockmaster Slave Lock Gearbox is a high-quality replacement component designed specifically to secure the secondary leaf of double (French) doors. This single spindle, sprung gearbox features a 35mm backset and 92mm centres, ensuring a precise fit and reliable operation.

As a dedicated slave door gearbox, it is manufactured without a latch or bolt, streamlining the locking process for the second opening leaf. The operation is straightforward: lift the lever to engage the locking mechanisms and use one full turn of the cylinder to lock. To unlock, simply turn the key and push down on the lever.

  • Backset: 35mm
  • Centres: 92mm
  • Spindle type: Single spindle, sprung
  • Case Height: 228mm
  • Case Width: 50mm
Part Size (mm)
centres 92
Backset 35
Case Width 50
Case Height 228
Case Depth 50

FAQs

This Lockmaster gearbox is specifically engineered for the secondary leaf (slave door) of a set of French doors. It works in conjunction with the primary master door lock to secure the full double-door opening.

No, this is a dedicated slave centre case design. It does not feature a latch or a central deadbolt, as these components are typically handled by the master door lock on the adjacent leaf.

The gearbox uses a secure lift-lever operation. To engage the locking points on the secondary door, lift the handle lever upwards and then use one full turn of the key cylinder to lock it. To release, turn the key and push the lever down.

To ensure a correct fit, you should verify these key dimensions on your existing lock:

  • 35mm Backset (distance from the edge of the door to the centre of the spindle)
  • 92mm Centres (distance between the centre of the spindle and the centre of the keyhole)
  • 228mm Case Height and 50mm Case Width