British Standard Lever Mortice Deadlock in Stainless Steel finish, with 76mm case, Stainless Steel forend and silver box strike. Ideal for retro-fit applications and suitable for inward / outward-opening fire doors. Tested BS 3621:2004. CE Marked EN 12209. Supplied with 2 keys. Specifications: Backset 3" / 76mm. W x D x H: 25 x 76 x 165mm. BS 3621: 2007. For internal and external application.