Adams Rite MS1850 Series Hooklock The MS1850 provides Maximum Security deadlocking for both aluminium swinging and sliding door applications. The stainless steel bolt with alumina-ceramic core ensures positive locking into jamb or opposite leaf and offers high security against cutting and jamb peeling (when used with armoured part). Accepts any standard mortice cylinder or thumbturn (with MS cam). Suitable for swinging and sliding aluminium door applications 8 Ply Laminated Steel lock bolt with patented Alumina-Ceramic Anti-Saw Core. Available with 22.2 mm (7/8"), 24.6 mm (31/32"), 28.6 mm (1 1/8") and 38.1 mm (1 1/2") backset Click here for Adams Rite data sheet Associated Products Adams Rite Faceplate to suit MS1850 Series Hooklock Adams Rite Threshold Bolt Adams Rite Round Mortice Cylinder KD