Prime-Line Products F 2625 LEFT Hand, Vinyl Single Hung Window Sash Lock, 2-1/16 in., Diecast, White, Keeper Included This single hung window sash lock is used on vertical sliding vinyl windows manufactured by BetterBilt (350 series) 2-1/16 in. hole centers x 2-13/16 in. overall width x 11/16 in. overall height White painted finish Diecast construction Verify dimensions against line drawing image before ordering It is recommended that you use included keeper, but in case you use your own or if it is built into the window, the cam is 0.35 inches high