Keep the entry doors on your commercial or residential property secure with the Marks USA Brass Entry Knob with Double Cylinder Deadbolt. The lock features a brass finish for durability, and a double cylinder deadbolt offers excellent security for your entry door.

Trim Specifications:

• Exterior: Steel reinforced brass plates with cylinder recess, 10" x 2-3/4". Polished brass finish (US 3). Wrought brass, knob, 2-1/4" diameter with two set screws. Two piece 9/32" steel swivel spindle. 
• Interior: Steel reinforced plate 7" x 2-1/4". Polished brass finish (US 3). Wrought brass knob, 2-1/4" diameter with two set screws.
• Cylinder: 1-1/8" long solid brass, 6 pin with 2 keys. 
• Strike: 4-7/8" x 1-1/4" x 3/32" thick, 5/8" curved lip. Conforms to ANSI spec., A115.1.
• Door Thickness: 1-5/8" to 2-1/4" standard. 

Lock Specifications: 9 Series (2-1/2" Backset)

• Lock Front: 7-5/8" x 1-1/16" x 3/16" thick. Optional Front 8" x 1-1/4" steel backplate with brass cover plate.
• Deadbolt: Cast 1" throw, steel reinforced.
• Latch: Solid brass, 1/2" throw (reversible).
• Rocker Switch: Locks or unlocks exterior lever.
• Hub Lock Arm: (to lock hub) Steel 1/8" thick .
• Hubs: 9/32" on square.
• Case: High pressure cast Zamac, baked powder coat finish.