Oil Rubbed Bronze sash lock, keeper and screws Works on all vintages of Perma-Shield Narroline, primed Narroline and 400-Series tilt wash windows This lock was introduced in 1999 Will work with center leg grilles that aren't keeper cut - you may need to sand the top of the grille to avoid cam lock interference Uses a composite lock cam which provides better wear performance than metal on metal Works With: 200 Series Narroline Double-Hung Window 400 Series Tilt-Wash Double-Hung Window