Designed, developed and tested to deliver the very highest levels of performance for security, ease of use and service life. Whether your doors are manufactured from PVCu, timber, aluminium or modern composite materials, there is a Lockmaster product suited to your needs.
High security locking compliant to PAS 24 and Secured by Design accredited, the Lockmaster 21 features 3 hooks, 2 anti-lift bolts with optional 4 rollers and drive rail serrations for shootbolt extensions for French door locking or additional security. A variant with no rollers is available to suit composite and timber door requirements.
The Lockmaster 21 is available to suit standard door heights and two options for short or French master doors.
A ‘quick change’ reversible latch with snib facility allows handing of the lock to be changed simply, in or out of situ. All dual follower locks have a handle driven snib facility to prevent accidental lockouts.
Patented pre-compression, stainless steel roller cams engage into their keeps, compressing the door against the gasket ahead of the locking points deploying for an ultimate weather seal.
A 13mm axis one piece keep with profile related packers ensure the perfect, secure fit with the profile. The 13mm axis allows greater loads during security testing.
Secure locking points: 3 hooks, 2 anti-lift bolts with 4 rollers and shootbolt extensions
Shootbolt locking: Enables Lockmaster multi-point door locks to be used for French doors and to enhance security for single door applications
Push-in snib feature: designed to prevent accidental lock-outs. Simply push the latch into the gearbox into the hold back position to activate the snib feature. Lift the lever to deactivate the snib. The latch will return to its original position.
Patented pre-compression rollers: Stainless steel roller cams engage into their keeps, compressing the door against the gasket, ahead of the locking points deploying
Enhanced roller position: within 100mm of the hook and pin locking points for improved testing endurance
Hardened centre case: offers enhanced security
‘Quick change’ reversible latch with snib facility: Handing of the lock can be changed simply in or out of situ. All dual follower locks have a handle driven snib facility to prevent accidental lock outs
35mm and 45mm back set options: Suitable for the majority of timber, PVCu, aluminium and composite door multi-point lock applications in the UK
Stainless steel faceplates: Improving durability, aesthetics and reducing carbon footprint during manufacture
- 16mm or 20mm faceplate options
- Square and radius end options
- Ferritic Stainless Steel
British Built: Lockmaster production including metal pressing, zinc alloy die casting and nylon injection moulding, as well as assembly are carried out on site in Yale’s UK headquarters
13mm axis one piece keeps with profile related packers: Ensure the perfect fit with packers designed to suit your door profile. 13mm axis allows greater loads during security testing
Hardened plastic buckets: screw in, hardened plastic tidy boxes for improved longevity
Long backplate handles recommended
Technical Information:
- Faceplate Options: 16mm or 20mm
- Square or radius end options
- Stainless steel faceplate
- Galvanised mild steel lockcase
- Backset Options: 35 and 45mm
- PZ centre: 62/92mm dual follower or 92mm lever operated
- Spindle size: 8mm