The No 7139 full mortise Privacy lockset is typically specified for bedrooms, bathrooms, and patios. The lockset is available in standard and extended backsets, and incorporates an adjustable bevel faceplate, emergency egress functionality and a three piece anti-friction latch. This lockset is designed for doors 1-3/4″ thick or greater, and has a faceplate measuring 8″ x 1-1/4”. When ordering, specify knob or lever function, and backset of 2-1/2″, 2-3/4″, 3-3/4″, 5″, or 6”. A strike plate and wrought metal dustbox are provided. All Nanz finishes are available. This lock is UL Listed and has a 3 hour fire rating.