Lockmaster Double Spindle Multipoint Door Lock – Latch, 3 Hooks, 2 Anti-Lift Pins & 4 Rollers for uPVC & Composite Doors

Product Overview

Enhance your door security with the Lockmaster Standard Multipoint Door Lock, featuring a robust combination of 4 rollers, 2 upward-throwing hooks, 2 anti-lift pins, and a central latch. This high-performance lock is ideal for uPVC and aluminium doors and is designed for use with sprung door handles only, as the mechanism is unsprung.

Key Features:

• Central Hook Locking: Replaces the traditional deadbolt with a centre-positioned hook in the gearbox.
• Enhanced Security: Includes 2 additional anti-lift hook bolts for superior protection against forced entry.
• Compression Rollers: 4 rollers ensure optimal weather sealing and reduce door warping.
• Reliable Operation: Compatible with double spindle handles (62mm and 92mm PZ) in lift lever or night latch configurations.
• Versatile Fitment: Suitable for both new installations and as a replacement for existing Lockmaster or Milamaster locks.

Lockmaster Identification & Compatibility

Lockmaster locks are among the UK’s best-selling multipoint door locks. Originally developed by Lockmaster and later acquired by Yale, they are also associated with the Millenco and Mantis ranges. Older versions may differ slightly in locking point positions, sometimes requiring minor door adjustments when upgrading.

Typical Identifiers Include:

• 228mm high gearbox with large latch and hook bolt
• Upward-throwing hooks (some with integrated anti-lift pins)
• Unbranded faceplates may still be Lockmaster if the features match

Gearbox Options:

• Backset Sizes: 35mm or 45mm
• Operation Types: Double spindle (unsprung) or single spindle (sprung)
• Bifold Gearboxes: Available in 25mm and 28mm backsets

Roller Functionality

The rollers provide compression rather than security, pulling the door tightly against the frame for improved insulation and durability. Each roller is adjustable by ±1mm for fine-tuned alignment and sealing.

Locking & Unlocking Instructions:

To Lock:

1. Close the door to engage the latch.
2. Lift the handle to activate all locking points.
3. Turn the key to secure the system.

To Unlock:

1. Turn the key to release the lock.
2. Push down on the handle to disengage hooks and rollers.
3. Turn the key again to retract the latch.

Latch Reversal Instructions:

Unscrew the latch cover, reverse the latch direction, and refit the screws. Some versions may have different screw placements.

Technical Specifications:

• Manufacturer: Lockmaster (by Yale)
• Backset: 35mm or 45mm (select from dropdown)
• Centres (PZ): 92mm / 62mm
• Spindle Size: 8mm (Double Spindle)
• Faceplate: Select from dropdown
• Operation: Double Spindle (unsprung)
• Handing: Non-handed (universal fit)
• Total Height: 2100mm
• Distance Between Hooks: 1161mm (Top to Bottom)
• Distance Between Rollers: 1409mm (Outer) / 847mm (Inner)
• Top Hook to Spindle: 579mm
• Bottom Hook to Spindle: 582mm
• Top Roller to Spindle: 713mm
• Bottom Roller to Spindle: 696mm
• Gearbox Height: 228mm
• Corrosion Resistance: BS EN 1670:2007 Grade 4 (240hr salt spray tested)

Suitable Door Types:

• uPVC Doors
• Aluminium Doors

Accessories Available:

We stock a full range of compatible parts, including Lockmaster keeps, gearboxes, door handles, and replacement spindles.