Hi, the measurement is 3 1/2" x 1 1/4" about 1/4" deep. On an unbroken latch, the triangular piece that juts out into the side of the window is approximately about 1/2" (probably a smidgin less). I hope this clarifies the kind of latch I need!! Thanks a bunch -best, Kim
Kim, can you please give us the distance between the screw hole centers? Also, we will need the distance from the screw holes to edge of casing.