Era bs3621.2004 dbl lock

This British Standard high security nightlatch complies with BS3621:2007 and falls in line with the new European Standard (BS EN 12209). Features an integral cylinder pull which protects the cylinder from being drilled. Includes 20mm bolt throw for extra strength and security ...This British Standard high security nightlatch complies with BS3621:2007 and falls in line with the new European Standard (BS EN 12209).

Features an integral cylinder pull which protects the cylinder from being drilled. Includes 20mm bolt throw for extra strength and security. This product is ideally suited to glass panelled wooden doors.

It's designed with an internal lockable handle, offering added security against forced entry. The bolt can be held in the withdrawn position only with the use of the snib feature. Operation is by key from the outside and by handle from the inside.

Cannot be forced with a credit card - main lock bolt automatically deadlocks. Backset is the measurement from the edge of the door to the centre of the keyway