Door Hardware Supply - Schlage D-Series Knobs

When the highest quality mechanisms are required, commercial quality D-Series locks are your best choice. Precision manufactured to exact tolerances, this top-of-the-line series is best suited for commercial, institutional and industrial use. You can choose from a broad range of knob designs, in a dozen standard finishes.
Extra Heavy Duty Commercial Cylindrical Locks, Knob Designs

Orbit 605	Plymouth 626	Tulip
Applications: Extra heavy duty residential, commercial, institutional, and industrial applications. Interior and exterior doors for schools/universities, hospitals/healthcare facilities, offices, factories, public buildings, religious, retail and government facilities. Certifications: ANSI A156.2, 1996, Series 4000 Grade 1. (Formerly FF-H-106C Series 161.) UL Listed. Keying: 6-Pin tumbler with two nickel silver keys per lock. Other keying options available from the factory include master keying, grand master keying, construction keying, and interchangeable core. Classic Primus or Everest Primus® cylinders are also available. Door Range: Knob and decorative designs: 1 3/8" - 2" (35 mm - 51 mm) standard. Backset: 2 ¾" (70 mm) standard. 2 3/8" (60 mm) and 3 ¾" (95 mm) backset latches available. 5" (127 mm) backset link available. Exposed Trim: Wrought brass, bronze, or stainless steel. Latches & Strikes: Adjustable brass or bronze latch faceplates and strikes, furnished in compatible lock trim finishes. Latches: 1 1/8"x 2 ¼" (29 mm x 57 mm), ½" (13 mm) throw standard, a ¾" (19mm) throw, fire door latch is available. Strikes: ANSI 1 ¼" x 4 7/8" (32 mm x 124 mm), 1 3/16" (30 mm) lip standard. Optional 1 3/8" (35 mm) lip available. Optional square corner T-strike 1 1/8" x 2 ¾" (30 mm x 70 mm) with 1 1/8" - 1 ½" (29 mm - 34 mm) lip available. Standard Features: Cylindrical lock housing. Cold rolled steel, corrosion treated for normal atmospheric conditions Key removable outside knobs for easy cylinder replacement Solid brass 6-pin cylinders No exposed mounting screws Exceeds 800,000 cycle ANSI Grade 1 requirements Electrified Locks: D-Series locks are available for electrically locking and unlocking controls for high security and fire safety applications. They are UL Listed and rated for both fire and electrical single point locking on labeled doors. Refer to the lock function pages for functions and design availability. Electrical Requirements: 24V AC, .35 amps or 24V DC, .15 amps. Operating Temperature: Maximum +151 1/2F, Minimum -31 1/2F