9KW Series Electromechanical Lever LocksElectromechanical locks built on the heavy-duty performance of the 9K series.The 9KW Series' electrified option allows integration to online access systems while preserving durability and reliability. These locks work in heavy-duty, high traffic applications where you need a lock that performs over time. BEST's electromechanical locks exceed ANSI grade 1 standards and incorporate design standards that ensure reliable functionality even with heavy use.Trim Materials: Brass or bronzeInternal Components: brass, bronze, zinc alloy, or corrosion-treated steelDoor Thickness: 1 3/4? ? 2 1/4?Strike: Brass, bronze, or stainless steel; standard 2 3/4? x 1 1/8? x 3/32? or ANSI 4 7/8? x 1 1/4? x 3/32?Backset: 2 3/4? standard, 3 3/4? and 5? availableLatchbolt: 9/16? (3/4? throw optional)Chassis: 2 1/6? diameter, fits 2 1/8? hole in door