These window locks - sometimes called a sash or a fitch fastener - are designed to secure your sash or double hung windows closed using a grub screw. Use the included Allen key to lift the grub screw and block the latch from being moved to the open position. This stops the window being open from the inside by young children, keeping them safe and reducing the risk of accidents and injuries, as well as adding an extra level of security.
From Australian brand, Tradco Hardware, these antique brass window locks are aged by hand for a natural living finish. They come with the Allen key and wood screws included.