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L-Series Mortise Locks
Extra Heavy Duty Commercial Mortise Locks
The Schlage L-Series mortise lock line is a heavy duty commercial mortise lock containing a wide array of knob and lever designs. It is available in a variety of keyed and non-keyed functions, and in most popular decorative finishes. It is UL Listed and can be specified for applications in offices, schools, hospitals, hotels, commercial/industrial buildings as well as residences.
Equipped with conventional cylinders and sectional trim, the L-Series extra heavy duty mortise lock provides ANSI 156.13, Grade 2 security to enhance its existing Grade 1 operational requirements for mortise locks with sectional and escutcheon trim. The series continues to exceed Grade 1 security requirements with concealed cylinders.
Specifications
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The L-Series is the best choice for any building where security, safety, product life cycle, cost, and design compatibility are prime considerations.
Exposed Trim
- Knobs: #41 and #42 heavy duty wrought brass, bronze or stainless steel knobs match in appearance and are equal to D-Series knobs.
- Levers: Levers are available in forged brass or bronze and cast stainless steel. Designs available to match D-Series levers.
- 93 Lever Design: Extruded brass, bronze or stainless steel.
- Escutcheons: L escutcheons are cold forged brass or bronze and stainless steel. N escutcheons are heavy wrought reinforced brass, bronze and stainless steel. L = 8" x 1 ¾" x 7 /16" (203 mm x 44 mm x 11 mm). N = 8" x 2 9/16" x 7 /16" (203 mm x 65 mm x 11 mm).
- Roses: A = 2 1/8" (54 mm) diameter wrought brass, bronze or stainless steel. B = 2 9/16" (65 mm) diameter wrought brass, bronze or stainless steel.
- Trim Combinations: Available with knob both sides, lever both sides, or knob by lever with rose or escutcheon both sides.
- Keying: 6-pin cylinder with two nickel silver Everest® patented keys standard. Keying options available from factory are master keying, construction keying, interchangeable core, SFIC and Primus® high security cylinders.
- Door Range: 1 ¾" (44mm) Standard. 1 3/8" (35mm) to 2 ½" (64mm) Regular parts assembled to order. Over 2 ½" (64mm) door ranges vary by function. N escutcheon available for 1 ¾" (44mm) doors standard. 2" (51mm) to 2 3/8" (60mm) Regular parts assembled to order. Specify door thickness if other than 1 3/4" (44 mm).
- Case Size: 4 7/16" x 61 /16" x 1" (113mm x 154mm x 25mm).
- Armored Front: 1 ¼" x 8" x 7 /32" (32mm x 203mm x 6mm). Standard.1 1/16" x 8" x 7/32" (27mm x 203mm x 6mm) Optional.
- Spacing: Knob or lever to cylinder, 3 7/8" (98mm); knob or lever to thumbturn hub, 2 11/16" (68mm).
- Deadbolt: 1" (25mm) Throw stainless steel.
- Latchbolt: 3/4" (19mm) Throw stainless steel with anti-friction tongue
- Backset: 2 3/4" (70mm) Only.
Lever Designs |
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01 |
02 |
03 |
05 |
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06 (D-Series Rhodes) |
07 (D-Series Athens) |
12 |
17 (D-Series Sparta) |
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18 |
93 |
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Knob Designs |
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41 (Plymouth) |
42 (Orbit) |
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Documentation |
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Full Line Catalog |
Templates |
Spec Sheet |
Service Manual |












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