Inside the case is a wedge-shaped key, B, also of sheet metal ... If placed on the sash instead of the window frame it, becomes a secure lock, preventing the opening of the window from "the ...

The difference lies in the frame's outer edges. Casements are more energy efficient than sash windows because they close and lock tightly against the frame. Casement windows are an excellent ...

Sash lock for Smartair Hardened steel hookbolt thrown 23.5mm by 90° turn of key or thumbturn. Latchbolt deadlocks automatically when door is closed. Suitable for variations L5S, L8V, L3, V. Latchbolt ...