The No 9600 full mortise flush bolt is designed to secure the inactive side of a double door. Usually installed in pairs at top and bottom, the bolt is activated by flipping the lever. Bolt lengths up to 48 are available to accommodate different door heights, and different strikes can be specified for various conditions. A rabbeted version is also available. The face measures 6-3/4" x 1''. All Nanz finishes are available.