The No 7039 full mortise Privacy lockset is typically specified for bedrooms, bathrooms, and patios. The lockset is based on a lock design manufactured in New England in the early 20th century. This lockset is designed for doors 1-3/8" thick or greater. When ordering, specify knob or lever function, and backset type. The handing is field reversible. 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.