KANE SECURITY SCREENS ­Quality Manufacturer Since 1890 ­Over 50 Years Manufacturing Security Screens ­Over 125,000 Square Feet of Manufacturing Space ­Over 40 Years Advertising in "SWEET'S" Architectural Catalog ­Over 2 Million Screens Installed Worldwide ­Over 20 Models to Meet All Security Levels What is a Security Screen ? A security screen looks similar to an insect screen but is much, much stronger. The security screen installs in the window reveal of an existing window and is designed similar to a "pre-hung" door. The door portion has a heavy steel or aluminum frame that holds stainless steel wire cloth or a steel perforated panel and hinges to a subframe. Just like a door is hinged to the buck. The subframe is screwed into the window reveal and has fitting pieces to make the subframe appear to be part of the original window opening.