Locking Gate Carabiners

Locking carabiners have gates that can be locked once closed in order to add safety and prevent accidental gate openings. They either provide a manual (a.k.a. screw-lock) or auto-locking system.

With screw-lock the climber is require to manually screw the sleeve onto the gate to lock it.

Auto-lock carabiners however lock as soon as the gate is closed.

When using a belay or rappel device it is recommended to use a locking carabiner. You should also consider using them at belay stations and at critical protection placements for more peace of mind.

Pros:

Locking gate adds security

Cons:

Heavier than other styles