Era British Standard Security Nightlatch BS3621 (1830-1930)

Hover Over Picture with Mouse

Product Sku
1830(40mm) 1930(60mm)
Bulk Buy Discounts
2 - 4
£3.47 (5.00%)


£69.34 (Including VAT)

Customise this item
Size/Style * Extra Cylinder Keys? Colour/Finish * Choose One Key Fits All OR Standard Locks *

Era British Standard Security Nightlatch BS3621 (1830-1930)

Product code: 1830(40mm) 1930(60mm)

  • The BS3621 High Security Nightlatch features an integral cylinder pull which protects the cylinder from being drilled.
  • The cylinder also has well over 30,000 cut key variations.
  • The Nightlatch also comes with a 20mm bolt throw for greater security and strength.
  • 3 Keys.
  • This product is ideally suited for glass panelled wooden doors, as it has been designed with an ergonomic internal lockable handle offering added security against forced entry.
  • The main lock bolt automatically deadlocks, this makes the use of a credit card to force entry virtually impossible.
  • The bolt can also be held in the withdrawn position (only) with the use of the snib feature.
  • The BS High Security Nightlatch conforms to British Standard 3621:2004 (BS EN 12209), and meets the tough criteria laid down by the insurance companies and the Police.
  • (See pictures below for dimensions).
  • Original manufacturers model numbers: 1830-31, 1830-32, 1830-35-1, 1830-35-2, 1830-37-1, 1830-37-2, 1830-40-1, 1830-40-2, 1930-31, 1930-32, 1930-35-1, 1930-35-2, 1930-37-1, 1930-37-2, 1930-40-1, 1930-40-2.
  • Backset: 40mm or 60mm-this is the distance from the edge of the door to the centre of the key hole..
  • Case width: 70mm.
  • Case height: 86mm.
  • Bolt length: 21mm.
  • Max door thickness: 57mm.
Related Products
Era British Standard Security Nightlatch BS3621 (1830-1930)

Era British Standard Escape Nightlatch (No key in inside handle)

The new BS 8621:2004 standard mirrors the BS 3621:2004 but is for escape...


Need Sales Advice?
Send us an email

Click here to send us an email. We aim to reply within an hour.

Call us

You can telephone us on 01202 798879 or 07956 220956 between 9:00am and 5:30pm, Monday to Friday.