Lockmaster Multipoint Door Lock – 2 Hooks, 2 Anti-Lift Pins, 4 Rollers, Latch & Deadbolt – Lift Lever or Double Spindle Operation (621mm Top Hook to Spindle Distance)

This Lockmaster multipoint door lock is engineered for high security and smooth operation, featuring 4 rollers, 2 upward-throwing hooks, 1 deadbolt, 1 latch, and 2 anti-lift bolts. It is suitable for uPVC and aluminium doors, providing enhanced compression, resistance to forced entry, and reliable locking performance.

The Lockmaster range includes a wide variety of configurations, primarily differing by the positioning of locking points. We supply the most commonly used models, which can often be adapted to suit existing setups. For precise replacements, we can source exact matches.

Even without branding on the faceplate, Lockmaster locks are easy to identify by their distinct 228mm-high gearbox and upward-throwing hooks, often paired with anti-lift pins. As the UK’s leading multipoint door lock brand, Lockmaster was acquired by Yale in the early 2010s and now sits alongside trusted names like Yale, Millenco, and Mantis. You may also find these locks rebranded under names like Milamaster.

Compatibility Notes:

Some older Lockmaster models may have locking points in slightly different positions. In such cases, minor modifications (e.g., increasing the door prep area by 40–50mm and repositioning keeps) may be required for proper fitment.

Gearbox Options:

• Backset Sizes: 35mm or 45mm
• Spindle Types: Double spindle (unsprung, supports lift lever and nightlatch) or single spindle (sprung, lift lever only)
• Bifold Gearboxes: Available in 25mm and 28mm backsets
• Centres (PZ): 92mm / 62mm
• Gearbox Height: 228mm
• Latch and Deadbolt Height: 30mm each
• Spacing Between Latch and Deadbolt: 65mm
• Screw Hole Spacing: 109mm (top-middle and middle-bottom)
• Older Gearboxes: May include a latch hold-back spindle hole
• Note: The 45mm version shares the same body as the 35mm version, with an extended latch/deadbolt and conversion plate

Locking Components:

• Hooks: Throw upwards; 136mm case height
• Deadbolt: 154mm case height with chamfered edge
• Rollers: 4 compression rollers for sealing and frame alignment (not security components), 1mm adjustable for optimal weatherproofing

Operation: Double Spindle

To Lock:

1. Close the door (latch automatically engages)
2. Lift the handle to engage hooks, rollers, and deadbolt
3. Turn the key to lock

To Unlock:

1. Turn the key to unlock
2. Push handle down to disengage locking points
3. Turn key again to retract latch

Corrosion Resistance:

• Tested to BS EN 1670:2007 Grade 4
• Withstands 240-hour neutral salt spray testing

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

This product is suitable for use as a uPVC door lock or aluminium door lock.

Product Specifications:

• Manufacturer: Lockmaster
• Backset: Select from drop-down
• Centres (PZ): 92mm / 62mm
• Faceplate: Select from drop-down
• Spindle Size: 8mm (Double Spindle)
• Rollers: 4
• Hooks: 2
• Deadbolts: 1
• Latch: 1
• Anti-Lift Bolts: 2
• Main Gearbox: Latch & deadbolt
• Handing: Non-handed
• Inner Locking Distance: 890mm
• Outer Locking Distance: 1456mm
• Overall Height: 2200mm
• Top Hook to Spindle: 621mm
• Bottom Hook to Spindle: 587mm
• Top Roller to Spindle: 755mm
• Bottom Roller to Spindle: 701mm
• Compatible Door Materials: uPVC, Aluminium