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skip to Lockmaster 21 Twin Spindle Latch & Hook Gearbox

Lockmaster 21 Twin Spindle Latch & Hook Gearbox

£31.20

(£26.00 ex VAT)

sku: LOCKM-0035
  • Twin spindle design with 92mm and 62mm centers for versatile handle options
  • Features a high-security latch and hookbolt center case mechanism
  • Durable galvanised mild steel construction for long-lasting performance
  • Fully reversible latch and snib to suit any door orientation
  • Available in 35mm or 45mm backset to fit various door profiles
  • Standard 228mm case height simplifies installation and replacement
  • Reliable lift-lever operation for secure and easy locking

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 Twin Spindle Latch & Hook Gearbox is a premium replacement center case designed for multi-point door locks. Engineered for durability and security, this gearbox features a robust hookbolt and latch configuration, providing a strong anchor point for your door.

This versatile unit is equipped with a twin spindle drive, supporting both 92mm and 62mm centers. This dual-PZ feature allows for the use of offset lever handles or standard lever-lever handles, giving you control over external access. The gearbox is constructed from high-quality galvanised mild steel, ensuring it stands up to the rigors of daily use.

Features and Functionality:

  • Universal Handing: The latch is easily reversible; simply remove the screw, rotate the latch, and re-secure to suit left or right-handed doors.
  • Locking Operation: Lift the lever to engage the hook and latch, then perform a full turn of the key to lock.
  • Sizing Options: Compatible with 35mm (50mm case) or 45mm (60mm case) backsets.

Whether you are upgrading an existing lock or replacing a worn-out gearbox, the Lockmaster 21 offers the perfect blend of security, ease of installation, and long-term reliability.

Part Min (mm) Max (mm)
Backset 35 45
Case Width 50 60
Case Height 228 -