MS®1850S Maximum Security Deadlock
Available in both hook and barbolt versions, the MS®1850S 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).

To ensure Maximum Security it is recommended that the MS® 4002 Series Armoured Strikes and MS®4043 Cylinder Guards are specified in conjunction with the lockcase. Interchangeable without stile modification with 4710 Deadlatch. Addition of 4015 Threshold Bolt produces two point locking whilst further addition of 4085 Header Bolt produces three point locking in pairs of doors.

	Hook and barbolt versions
	Suitable for swinging and sliding aluminium door applications
	8 Ply Laminated Steel lock bolt with patented
	Alumina-Ceramic Anti-Saw Core.
	Monitoring available
	Available with 22.2mm (7/8"), 24.6mm (31/32"),
	28.6mm (1 1/8") and 38.1mm (1 1/2") backset
	Two point locking available
	MS®1850SNSI version available for hollow metal or timber doors
	(Click here to download MS1850SNSI catalogue page)
	Fitting instructions (MS1850S): Download
	Fitting instructions (MS1850SNSI): Download