The No 7730 full mortise passage latch set for knobs is based on an interior mortise lock design manufactured in New England in the early 20th century. The lock features a 2-1/2″ backset and a 6″ x 1″ faceplate, which it shares with the interior privacy lockset. It also shares a common mortise size for ease of door preparation. 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.