Lockmaster 21

Celebrating 21 years of Lockmaster, Yale is proud to introduce Lockmaster 21, the latest innovative addition to Britain's best-selling range of multipoint door locking systems. 

The Lockmaster 21 is compatible with the Yale SensCheck ™ Door and Window Sensor range

Locking Points 

• Lockmaster's signature hook and pin unit has been carefully positioned within 100mm of the pre-compression rollers
• Strengthened centre case offering enhanced security for added peace of mind 
• Pre-compression rollers
• Sprung and unsprung centre cases to suit front and back door applications; now with centre anti-separation hook as standard
• Easy to use push-in latch snib feature to prevent accidental lock-outs 
• Available in 35mm and 45mm backset options 
• Suitable for PVCu, aluminium, composite and timber doors

Faceplate 

• Yale branded 
• Manufactured from 430 stainless steel 
• 16mm or 20mm faceplate options 
• Range includes square and radius ends options 
• Aluminium and plastic 44mm trim sets available for use on composite doors 

Specification 

• Secured by Design approved 
• PAS 24:2016 security tested 
• Corrosion tested to BS EN 1670:2007 Grade 4 (240hrs. NSST) 
• Endurance tested to 50,000 cycles 
• 10-Year Mechanical Guarantee
• Made in Britain

Included within the Yale Lifetime Security Guarantee*

*Terms and conditions apply

Material Specification 

• Lockcase: Galvanised mild steel 
• Faceplate: 430 stainless steel 
• Keeps: Mild steel, BZP and clear trivalent 

Packaging 

• Locks: 5 per box 
• Keeps: 5 per box 

Maintenance 

Yale recommends that all moving components are lubricated using a non-acidic mineral oil at least twice a year and surface cleaned with a damp cloth. The product may need to be adjusted to ensure satisfactory operation. 

*Terms and conditions apply