Legge N5642.SS | Sash Lock - 5 Lever 68mm Case to EN12209 Grade 7 (BS 3621)
Legge N5642.SS | Sash Lock - 5 Lever 68mm Case to EN12209 Grade 7 (BS 3621)

Legge N5642.SS | Sash Lock - 5 Lever 68mm Case to EN12209 Grade 7 (BS 3621) (5642)

Finishes: SS Stainless Steel

The Legge N5642.SS sash lock is a high-security 5-lever mortice lock with a 68mm case, fully certified to EN12209 Grade 7 and BS 3621. Designed for timber and composite doors, this robust Legge sash lock delivers exceptional strength, reliable operation, and superior burglary resistance. Ideal for residential and commercial applications requiring maximum security, the N5642.SS combines the trusted British engineering of Legge with modern performance credentials. Its stainless-steel finish ensures durability and a premium appearance, making it a popular choice for high-spec projects and replacement installations.

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  • Additional Product Details

    Sash Lock - 5 Lever 68mm Case w. 45mm Backset - Square Forend

    Also available in PB polished brass - POA

    • Suitable for bolt-through furniture fixings at 38mm centres
    • 20mm single throw hardened steel, anti-saw deadbolt for more excellent attack resistance
    • Anti-pick and anti-drill protection to prevent forced entry by picking or drilling
    • Unique ‘Pull & Twist’ reversible latch (switch from left hand to right hand without opening the lock case)
    • Suitable or left or right-hinged timber doors
    • Supplied with 3 keys
    • 1000 Differs
    • 10-year guarantee


    Rebate Kits are available @ 12.5mm. Ask the sales office for N42/0.5 - POA

    Legge BS 5 lever mortice deadlock with BS 3621 Kitemark for quality, reliability and trust. Offering exceptional resistance to attack, the deadlock features anti-pick, anti-saw and anti-drill security, making it ideal for external doors. 

    Briton Fire Door Closers | Briton Exit Devices | Briton Locks | Legge Platform Locks

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    Relcross Limited (trading as) Door Hardware Online | Hambleton Avenue | DEVIZES | Wiltshire | SN10 2RT | United Kingdom | T: ++ 44 (0) 1380 720 062 | F: ++ 44 (0) 1380 729 888 |  E: britonsales@doorhardware-online.co.uk 

  • Certification

    EN 12209: 2003/AC:2005 & Kitemarked BS 3621:2007 KM06662

    UKCA | CE | 60 Mins Timber | 240 Mins Steel | Warranty: 10 Years (Mechanical)

    Certificates, including DoPs downloadable here

  • Resources | Downloads

    Legge Residential | Platform Locks - Data Sheet