Double Hung Window Tilt Latches

Single Hung and Double Hung window Tilt latches Screw on or Slide into grooves.
The screw on latches comes with assorted widths and screw hole patterns
The slide in latches are different shapes and thicknesses
The Slide-on finger latch assembly slides into a groove/cut out in the top of the window sash.
Sometimes you can just push and it will slide out.
If not, take a small block of wood and gently tap on the end till it slides out

Concealed Tilt-In window Latch
Miscellaneous Tilt-In Latch for Metal window
Window, Screw on Tilt-latch, Flat Plastic
Metal Slide-In Tilt Latch for Single or Double Hung Windows
Plastic Slide-In Tilt Latch for Single or Double Hung Windows
Slide-On Tilt in Window Latch, Plastic