Maxtech (Like Marks 22A), Polished Brass US3, Right Hand Reverse, Ornamental Knob Rose Mortise Entry Lockset Iron Gate Door Single Cylinder with Marks Thumb Turn Lock Set. 2-1/2" Backset, Deadbolt: 1", Front Face Plate: 1" X 7-1/8". Commercial Mortise Locksets, For Steel gates. Fits 1-3/8" - 1-3/4" interior and exterior doors. Ideal for security storm doors. Reversible design fits right hand and left hand doors. Flat ball doorknob with bolted mounted knob rose trim. The lockset features a Polished Brass finish for durability. Operates with MARKS thumb Turn on inside to throw the deadbolt or open the lock and MAXTECH mortise Cylinder on outside. 1" deadbolt offers excellent security. Hardware included for easy installation. Add security to your entry door with the Maxtech Polished Brass Knob with Single Cylinder Deadbolt.

Important Note: This Ornamental Mortise Lockset is NOT a Panic Proof Lock, it does NOT operate Like the Marks 22F Function, However this Maxtech Lockset with the Marks thumbturn will have the lockset operate ONLY as a Single Cylinder function.