What kind of carabiners are used at dynamic belay points?

• A. 2 autolocking
• B. 2 screwgates or a supersafe
• C. Auto-locking steel to pulley
• D. 2 screwgates or a supersafe

Answer: (B)

Dynamic belay points demand hardware that can’t unintentionally open under load or rope movement. Locking carabiners are used because their gates are secured, preventing accidental gate opening when forces spike during a fall or dynamic loading.

Using two locking carabiners gives redundancy: even if one gate were to stall or not be perfectly aligned under load, the other remains secure, keeping the belay connection intact. If you opt for a single piece of hardware, choosing a purpose-built anchor carabiner like the Supersafe provides a robust, reliable lock designed specifically for anchor use.

In short, the best approach at dynamic belay points is two locking carabiners (two screwgate ones) or one solid anchor carabiner such as a Supersafe, because both choices maximize security and reduce the risk of an unsecured gate during dynamic loading.