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skip to Lockmaster 21 Single Spindle Latch & Hook Gearbox

Lockmaster 21 Single Spindle Latch & Hook Gearbox

£31.20

(£26.00 ex VAT)

sku: LOCKM-0034
  • Secure 92mm centres for standard lock compatibility
  • Combined latch and hookbolt design for enhanced security
  • Fully reversible latch to accommodate both left and right-hand doors
  • Durable galvanised mild steel construction for longevity
  • Simple single spindle operation with lift-lever locking
  • Available in 35mm or 45mm backset options
  • Compact 228mm case height fits various door profiles

size

Keys Supplied: per lock ( total) total (unless ordering multiple groups)
Additional Keys are available below
Qty:

Shipping From:

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 Latch & Hookbolt

The Lockmaster 21 Single Spindle Latch & Hook Gearbox is a high-quality replacement centre case designed for multipoint locking systems. It features 92mm centres and a robust latch and hookbolt mechanism, providing a high level of security for residential and commercial doors. Made from galvanised mild steel, this gearbox is engineered for durability and resistance to wear and tear.

Installation is straightforward thanks to the reversible latch. To change the handing, simply remove the screw in the latch, flip the latch to the opposite side, and refit the screw. The operation is user-friendly: lift the lever to engage the locking points, followed by a full turn of the cylinder key to secure the door.

  • Backset: 35mm or 45mm
  • Centres: 92mm
  • Case Height: 228mm
  • Spindle: Single spindle
  • Material: Galvanised mild steel
  • Locking Method: Lift lever operation
Part Min (mm) Max (mm)
centres 92 -
Backset 35 45
Case Width 50 60
Case Height 228 -

FAQs

This gearbox features a fully reversible latch for easy installation. To change the handing, remove the screw in the latch, flip the latch to the opposite side, and then refit the screw.

The Lockmaster 21 gearbox is available in two common backset options: 35mm and 45mm. Both versions feature standard 92mm centres to ensure compatibility with most existing handles.

This unit uses a simple lift-lever operation. To engage the latch and hookbolt locking points, lift the door handle upwards and then complete the locking process by turning the cylinder key.

The gearbox is manufactured from durable galvanised mild steel, offering reliable protection and longevity for both residential and commercial door applications.