Professional Stable Door Lock Features & Benefits Professional 4 Hook 4 Roller Stable door lock. 35mm Backset with 16mm faceplate.1810mm combined faceplate length (2x 900mm).Bottom lock, 43mm centres for TNT style handles.92mm PZ spring-loaded centre cases.Reversible latch.Extendable.Roller adjustment +/- 2mm.BSEN ISO 9001/2008 Quality Management System.Box Quantity: 10. View the full product datasheet here.