Interior Design Fittings and Fixtures - Window Locks
Casement Stay Locks
Surface Mounted Lock for Casement. (Can be seen and be obtrusive).
There are two parts to these locks, one that is mounted to the casement and the other to the frame. A key usually moves the bolt into the staple.
Concealed Lock for Casement. (A better aesthetic value as it is hidden).
This type of lock is like a barrel bolt, called a mortise rack bolt. The barrel slots into a hole drilled in the edge of the casement and turning a key moves the bolt into a hole drilled in the frame.
Sash Window Screw Lock
These are steel bolts that slide through a hole in the top rail of the inner sash through to the bottom rail of the outer sash. This prevents the inner and lower window from sliding up and the top outer window from sliding down. As a designer they have a good aesthetic value, as they can't be seen.
