Do you have single hung vertical sliding windows with loose or missing locks? These sash locks can help restore both the security and appeal to your single hung windows of matching design style. They are constructed of diecast zinc and come in a beautiful, nickel-plated finish. These replacement locks fit on Keller single-hung vertical sliding aluminum framed windows. Depending on the size of the sash, these locks can be used as singles or in pairs. This item is packaged with one lock and two installation fasteners. Installation of these sash locks is easy and can be done with a simple handheld Phillips head screwdriver. Other design features include a large lock lever for ease of fastening, 1-1/2 inch mounting hole centers (distance between each mounting hole measured from center to center of holes), and industry standard finish to match other existing hardware in the home or office. Compare the style and dimensions of this lock to those required on your sliding windows and order yours today.