Latch bolts
Doors where no locks are fitted, but where an electric strike should be fitted, include a matching part with lockable latch in the door leaf.

Mortise latch lock model 802

Screw-on latch lock model 804

Mortise latch bolt lock model 807 squared

Mortise latch bolt lock model 807 radius

Mortise latch bolt lock model 807 with U-shaped forend