Marks Thinline Slim Line 2750B/3 Polished Brass Left Hand Mortise Entry Lever Plate Trim Set Lockset Single Cylinder Lock Set (For Patio Door). 1" Backset, Deadbolt:1", front: Lock Face Plate is 1" x 9-7/16". Single Cylinder on outside and thumb turn on inside. Commercial Mortise Locksets, For storm doors. Mounting screw holes spaced at 8-1/4 inches. Backset 1 inch. Thru-bolted solid brass lever plate trim set assemblies, Spring loaded captivated self adjusting spindles with screwless levers.

Backset: 1 inch

Faceplate Measures: 15/16 inch by 9-1/2 inch.

Faceplate Screws: 8-1/4 inches

Escutcheon Plate: 1 x 9-3/4

Escutcheon Plate Screws: 7-7/16 inches

Handle to Cylinder Spacing: 3-5/16 Inches

Center of spring latch, to center of Deadbolt 3-1/2 inches

Thru-bolted solid brass lever plate trim set assemblies

Spring loaded captivated self adjusting spindles with screwless levers