The No 7750 full mortise privacy lockset for knobs is based on an interior mortise lock design manufactured in New England in the early 20th century. It shares a common mortise size with other 7700 series locksets for ease of door preparation. Typically used for bedrooms, dressing rooms and bathrooms, the lock operates with a bit key. The lock shares its measurements with the interior passage latch set. The distance between the handle and the keyhole is 3''. The bevel of the faceplate is adjustable for thicker doors. A strike plate and wrought metal dustbox are provided. All Nanz plated and patinated finishes are available.