Schlage D44S Hospital privacy Knob Lock. Heavy duty performance for high traffic applications.
At Schlage we know that every product you specify has to stand up to constant use and abuse without compromising security. The D-Series gets the job done with tough, dependable ANSI Grade 1 locks designed for use in military barracks, back-of-house hospitality and retrofit applications. Built for heavy traffic applications, D-Series locks are easy to service and maintain, and come in a range of styles and finishes to fit your building.

Schlage D-Series knobs are built to tough manufacturing standards that ensure a long life with smooth performance. With finishes to fit your building design, and a choice of styles, the D-Series is one of the toughest knobs we make.

We don’t compromise on security.
The safety and security of your clients’ buildings is something we take very seriously. That’s why every Schlage lock and deadbolt undergoes intensive testing to determine its ANSI grade level:
Cycle tests
Resistance tests
Door impact tests
Warped door tests
Bolt strength tests

We pay attention to these details so you can focus on creating a functional and aesthetically pleasing environment for your clients. In fact, every one of our D-Series locks meets ANSI Grade 1 standards for safety.

Exceeds 800,000-cycle ANSI Grade 1 requirements
Exceeds ANSI A156.2, Series 4000 Grade 1 lock knob torque requirements
Heavy-gauge, cold-rolled steel mechanisms are corrosion treated for normal atmosphere conditions

Door Handing
All Schlage locks are reversible. Hand information is necessary to ensure proper cylinder orientation in keyed functions, and finish of latchbolt and strike for locks that are to be installed on reverse bevel doors. Consult your catalog for door handing information.

Specifications
Handing: Keyed functions of knob designs are field reversible.
Door Thickness: 1 3/8” to 2” (35mm–51mm) standard.
2” to 2 1/2” (51mm–64mm) optional.
Backset: 2 3/4” (70 mm) standard. 2 3/8”, 3 3/4” and 5”
(60 mm, 95 mm, 127 mm) optional.
Faceplate: Brass, bronze or stainless steel. 11/8” x 21/4”
(29 mm x 57mm) square corner, beveled.
Lock Chassis: Steel, zinc dichromate plated for corrosion resistance.
Latch Bolt: Brass, 1/2” (12mm) throw, deadlocking on keyed and exterior functions. 3/4” (19 mm) throw anti-friction latch available for pairs of fire doors.
Exposed Trim: Wrought brass, bronze or stainless steel.
Strike: ANSI curved lip strike 11/4” x 4 7/8” x 13/16”lip to center standard. Optional strikes, lip lengths and ANSI strike box available. See page 20.
Cylinder & Keys: 6-pin Everest 29 S123 keyway standard with two patented nickel silver keys per lock.
Keying Options: Full size interchangeable core and Primus® high security cylinders. Master keying, grand master keying and construction keying.
Warranty: Three-year limited warranty.

Certifications
ANSI: Meets or exceeds A156.2 Series 4000, Grade 1 strength and operational requirements.
Federal: Meets FF-H-106C Series 161.
UL / cUL: All locks listed for A label single doors, 4’ x 8’. Letter F and UL symbol on latch front indicate listing. Electrified functions are UL19X Listed for single point locking applications. UL437 Listed locking cylinder optional: specify Primus 20-500 Series cylinder.
ADA Compliant: Schlage Lock Company offers a wide selection of locks designed to meet the Americans With Disabilities Act.