Marks USA 2750C/3 Thinline Ornamental Iron Lever, Double Cylinder with Plate, Entry, 1", AR1, Polished Brass

The Marks USA 2750C/3 Thinline Series is an entry-function mortise lockset designed for ornamental-iron and storm-door applications requiring keyed access from both sides. With a narrow 1″ backset and 1″ deadbolt throw, it fits slim-frame installations where standard mortise locks will not.

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 reliability and ease of installation. Innovations include the Uni-Lock model with single-screw assembly, elimination of threaded swivel spindles in favor of a more secure thru-bolted design, helper springs in lever-rose sets, and steel hubs for greater endurance.

Thinline 2750C Series Features

• Thru-bolted solid brass trim assemblies for added strength and durability

• Spring-loaded captivated spindles for smooth operation and long life

• Reversible mortise lock with 1″ backset for flexible installation

• 1″ bolt with ½″ latch projection for secure locking

• Double-cylinder configuration: Marks “A” keyway, 5-pin with 2 keys included

Finished in polished brass US3, the 2750C/3 provides both elegance and performance, combining Marks’ long-standing craftsmanship with modern enhancements. Ideal for decorative iron gates, storm doors, or premium residential entries where security, durability, and refined aesthetics are essential.