The No 7952 cremone bolt, traditionally used to secure French doors, dates back to the early part of the 20th century. The central hub of this bolt is flanked on either side by graceful swells and a series of astragals. Cremones are designed to work with a particular application. Accordingly, rod length and keeper configuration will be determined during the specification process. Most Nanz levers and oval knobs can be used. All Nanz plated and patinated finishes are available.