Pack of x6 Yale P6P119 Window Bolts Yale P6P119 Sash window locks have a threaded lock barrel which is fixed into the inner frame and the window is secured by locking the inner bolt into the barrel and frame using the key. Can also be used in hinged windows. The locks simply screw into the barrel. The Yale Sash Window Lock with key is a robust and reliable security solution designed to enhance the safety of your home. Crafted with precision and durability in mind, this lock is specifically engineered for sash windows, offering an effective deterrent against unauthorized access. The inclusion of a key adds an extra layer of security, allowing you to control and restrict access to your windows.