The Sash lock for a double-hung window is constructed out of die-cast. The cam-action creates a good seal when locked.

Material: Die-cast
Color: Polished Chrome, Polished Brass, White, or Black.
Hole Center - 2-1/4 inch
Height: 7/16 inch, base to highest point 
Latch Projection - 3/8 inch  

Contents:
1 lock
1 keeper
Installation screws

Related items:
50018 - 3/8 Projection, No keeper 
50021 - 3/8 Projection , Keyed 
50022 - 3/8 Projection With keeper
50026 - 5/8 Projection No keeper 

Priced and sold each.