The highest quality heavy-duty commercial grade mortise lock series (Grade 1) available, capable of meeting the requirements of a vast array of lever and knob designs. Our locks have been used at the U.S. Justice Department, DC; Morgan Stanley, NY; Rockefeller Center, NY; and Grand Central Station, NY.
For doors 1 3⁄4" minimum.
(1 1⁄4" armour front).
Latch bolt by handle inside and guest or master key outside. Outside handle always rigid. Dead bolt by thumb turn inside and service key only outside. Use of inside handle retracts latch and dead bolt simultaneously. Auxiliary latch deadlocks latch bolt.
Lock Information and Specifications
A high quality heavy duty commercial grade mortise lock series (Grade 1) capable of meeting the requirements of a vast array of lever and knob designs. Available standard as a 2 3⁄4" backset, they may also be had in 2 1⁄2, 3 3⁄4, 5 and 6" backsets. They incorporate a standard 1 1⁄4" wide faceplate and are designed for doors 1 3⁄4" thick and greater. (A 1" wide faceplate is also available). A universal curved lip strike for hollow metal and wood frame construction conforms to ANSI Standard A 115.1, 4.875 × 1.25" (124 × 32 mm) lip-to-center. Flat lip, special length and custom strikes may also be ordered to accomodate various project conditions and requirements. Locks and strikes are field reversible and available in a variety of keyed and non-keyed functions and include emergency egress functions where applicable.
Our heavy duty mortise locks employ high carbon steel compression springs for long life and durability of service. Hubs are fabricated of oil impregnated, copper infiltrated sintered steel, for additional strength and positive latch retraction. Cases are designed to accomodate thru-bolting trim for positive alignment with the lock case. Locks are regulary furnished with a 3⁄4" throw 2-piece mechanical heavy-duty anti-friction latch bolt to meet UL requirements for use on a pair of fire doors.
Dead bolts are fabricated with hardened steel inserts. Faceplates and strikes are fabricated standard in non-magnetic 304 alloy Stainless steel. Brass or bronze substrates and most decorative finishes may be had by special order. Our locks are UL Listed (3 Hour) for use on fire doors and can be specified for applications in offices, schools, hospitals, hotels, and commercial buildings, as well as residences.
All Locksets may be electrified for electromechanical function requirements. Solenoids are UL tested for cycle life, low operating temperature, shock and fire hazard qualifications.
Electromechanical locks are designed for intermittent or continuous duty and are available in either 12 or 24 VAC, and have been tested in accordance with the American National Standard for Mortise Locks and Latches and meet or exceed the ANSI A 156.13-1987 specifications, making them the best choice for any building where safety, security and design compatibility are prime considerations.
Backsets
2.5, 2.75, 3.75, 5, and 6",
(64, 70, 95, 127 and 152 mm).
Steel Case
Dimensions vary according to backset.
Heavy gauge plated steel, 0.093" (2.36 mm) thick, with corrosion resistant zinc dichromate finish.
Armor Front
0.218 × 1.25 × 8" (6 × 32 × 203 mm).
Adjustable for beveled conditions from flat to standard bevel 0.125" on 2" (3 mm on 51 mm).
Wrought stainless steel, bronze, or brass substrate.
Faceplate (Scalp)
0.090 × 1.25 × 8" (2.38 x 25 x 203 mm).
Wrought stainless steel, bronze, or brass substrate. Standard, Custom Plated and Patinated Finishes Available.
Anti-Friction Latch Bolt
Two-piece mechanical oil impregnated sintered stainless steel.
0.5 × 1" with 0.75" throw (12 × 25 × 19 mm).
Dead Bolt
Brass with free-rotating hardened steel saw-proof inserts.
0.5625 × 1.1875" with 1" throw (14 × 30 × 25 mm).
Strike
Supplied to ANSI Standard A 115.1, 4.875 × 1.25" (124 × 32 mm) lip-to-center.
Wrought stainless steel, bronze, and brass substrate. Standard, Custom Plated and Patinated Finishes Available.
Regularly furnished with universal curved lip strike. Flat lip, special length and wrought dust boxes also available.
Universal Hub
Broached for 8mm (0.318") spindles on the square and for 3⁄8"–20 (0.290") spindles on the diamond.
Special broach dimensions available upon request.
Oil-impregnated, copper-infiltrated sintered steel with one-way rotation for levers and two-way rotation for knobs.
Thumb Turn Hub
0.1875" (5 mm) diamond, oil-impregnated, copper-infiltrated sintered steel, 90 degree rotation.
Spacing
3.625" (92 mm) center hub to center cylinder.
2.4375" (62 mm) center lever hub to thumb turn hub.
Through-Bolting
1.5 to 1.6875" (38 to 43 mm) center-to-center.
Federal Specification
Conforms to all performance and structural specifications of ANSI A 156.13, Series 1000, Grade 1 Mortise Locks and Latches.
UL Listing
The SM Series are UL listed (3 Hour) for use on fire doors and can be specified for applications in offices, schools, hospitals, hotels, and commercial buildings, as well as residences.
