Marks USA Cylindrical Locksets are designed for use in situations where durability is the deciding factor. Our cylindrical lock chassis are all constructed with cast retractors on bronze roller bearings. This strong, durable component gives our cylindrical sets the ability to last millions of cycles and is available in knob and lever sets.
The Marks USA Survivor leverset has a unique "clutch" mechanism that radically reduces the wear and abuse that typical cylindrical lever sets endure. When locked, the levers of the Survivor disengage from the retractor and other interior mechanisms of the lock. The levers of the Survivor swing freely , without resistance. This reduces the amount of wear on lock components and eliminates "lever droop". The use of a clutch results in longer lasting, lower maintenance, eloquent solution.
Marks USA offers electrified models in both mortise and cylindrical locksets in various functions. Mortise locks and solenoid operated in 6, 12, or 24 VDC. Cylindrical locks are offered with solenoid motor actuators.
All locks are supplied with bridge rectifiers for use with either AC or DC current.
Marks USA manufactures a versatile series of Grade 1 Deadlatches and Deadbolts which install easily and accept most other manufactures conventional, high security and IC Core cylinders.
Marks USA has been making mortise locks for over 30 years. From their introduction, our mortise locks have enjoyed a reputation for long life and their ability to excel in high traffic, high abuse areas. Marks USA mortise locks are engineered to provide years of maintenance-free performance. Our Nova Series Mortise Locks exceed 6 million cycles of continuous use.
Marks USA Tubular Locksets are available with the same trim as supplied on our mortise locks designs. These sets feature heavy duty solid brass or stainless steel trims that feel substantial and comfortable to the hand. All of our knobs and levers are permanently attached to roses at the factory, so there are no annoying set screws to loosen and fall out. Rose designs are offered in round and square shapes, with all mounting screws concealed.
Marks USA Gatelocks for Woven Wire applications feature a patented "No Fallout" design. The lock components are held in place when the cover is removed, even if the lock body is inverted. Changing the handing of the lock only requires reversing the latch or hook.
Models are available in several latch or hook projections and are finished in a durable gold powder coat.
- Patented "No Fallout" feature prevents components from falling out of the lock body when the handing is changed, even if the lock body is inverted.
- Handing is easily reversible
- Tapered turnpiece prevents tampering from locked side of gate
- Optional Knob and Lever actuators available
- Made in our own plant in Amityville, New York, USA
Marks USA has been a primary manufacturer of Ornamental Iron Storm Door locks for many years. During that time, many innovative improvements were developed to increase the reliability and ease of installation. Innovations includes the "Uni-Lock" model with single screw assembly, elimination of threaded swivel spindles in favor of the more secure thru-bolted design, helper springs in lever-rose sets, and steel hubs for greater endurance.