Brass Casement Sash Latch
Brass Casement Sash Latch comes with the latch, and three different keepers (one meant for use with a pair of casements which is surface mount and two meant for use with a single casement which mortises into the jamb).
The latch's back plate measures 2-1/16" tall, 1-5/16" wide and projects 2" from the surface of the window. The surface mount keeper measures 2" tall, 9/16" wide and projects 7/8" from the surface of the window. The first mortised keeper measures 2-1/8" tall, a total of 1-3/4" deep, and mortises 1" x 1/8" into the jamb and the second mortised keeper measures 5/8" x 2-3/8" x 1/16".