DC USA Approved MS1950, MS1950-X5X Series MS Deadlock
A huge bolt of laminated stainless steel, nearly 3" long, activated by an uncomplicated
pivot mechanism, has made the basic MS1950 MS® Deadlock the standard of the
narrow stile aluminum door industry. The length of this bolt provides maximum
security for a single leaf door, even a very tall and flexible one or an installation
where the gap between the door and jamb is greater than it should be.
The stainless steel MS1950-X5X Series MS® Deadlock answers the security need of
sliding doors in commercial, industrial, and institutional buildings. The mechanism is
identical to the widely used Maximum Security swinging door lock, except that the
massive laminated bolt is provided in a hook shape to resist the parting motion of
sliding door and jamb. The over-center MS locking action assures that forced entry
attempts to pry the door in any direction, up, down, or sideways, will be defeated.
360° turn of key or thumbturn projects or retracts the counterbalanced bolt. Key
can be removed only when bolt is in a positively locked or unlocked position. Lock
accepts any standard 1" [25.4 mm] length, 1-5/32" [29.4 mm] diameter mortise cylinder
with MS® cam such as the 4036 Mortise Cylinder or thumbturn such as the 4066
Thumbturn, available separately. Lock accepts cylinder on either or both sides.
31/32" [24.6 mm], 1-1/8" [28.6 mm],
or 1-1/2" [38.1 mm] only.
Measures 1" x 6" x depth [25.4 mm x
152.4 mm x depth], depth varies by
backset (see table left). Fully stainless
steel case and internal components.
Eight-ply laminated stainless steel.
Center ply has alumina-ceramic core to
defeat any hacksaw attack, including
rod-type “super” hacksaws.
MS1950 Bolt: Standard straight bolt measures
5/8" x 1-3/8" x 2-7/8" [15.9 mm x 34.9 mm
x 73.0 mm] with 1-3/8" [34.9 mm] throw.
MS1950-X5X Bolt: 5/8" x 1-3/8” [15.9 mm x
349.9 mm] with 13/16” [20.3 mm] throw. Hook
shape repels pry bar attempts to “spread”
the door from its jamb or lift it off its track.
Measures 1" x 6-7/8" [25.4 mm x 174.6 mm].
See next page for dimensions of strike
slot which can be cut in metal jamb.
Trim plate, box strike, and armored
strike are available separately.
Individually boxed with machine
screws for mounting. Cylinders and/
or thumbturns available separately.
1-1/2 lbs. [0.68 kg]
- “SCHOOLHOUSE” version, also available,
is modified so that operation from inside
is “unlock only”. This lock is handed and
must be specified LH or RH. Specify Series
SCH1950, (-X5X). Same faceplate and
backset options as Series MS1950, (-X5X).