Zoo Hardware Vier DIN Dead Lock Finish: Satin Stainless Steel Choice Of Square Or Radius (Rounded Edges) Forend & Strike Plates Tested to BS EN 12209 : 2003 & Certifire tested - CF850 Dimensions - Case size (55mm backset) - 85mm x 165mm - Case size (60mm backset) - 90mm x 165mm - Face plate - 235mm x 22mm x 3mm Grade 304 Stainless Steel latch dead bolt Includes anti-rattle strike and dust box All factory QC tested 10 year mechanical guarantee