Solid Brass Keyed Entry Deadbolt (Polished Brass Finish) - comes keyed on one side and thumb turn on the other side. Solid brass cylinder and hardened steel bolt. Comes With 2 3/8 Inch Backset. 2 3/4 Inch Backsets Are Available Upon Request This deadbolt uses a Schlage C Keyway and uses a standard door preparation. Comes with strike plate and mounting hardware.