Home security is important to many of us, so one of the most inexpensive options are sash window locks with key operation. These sash window locks - commonly referred to as sash fasteners or fitch fasteners - from industry leader, Tradco Hardware, features a contemporary square design. Each one is supplied with two keys, as well as the wood screws for easy installation on your timber windows. Multiple orders can be keyed alike or separately, depending on your preference.