Carabiners

Carabiners


Carabiners are metal loops with spring-loaded gates (openings), used as connectors. Almost all carabiners for recreational climbing are made from aluminum alloy.

Carabiners exist in various forms; the shape of the carabiner and the type of gate varies according to the use for which it is intended. There are two major varieties: locking and non-locking carabiners. Locking carabiners offer a method of preventing the gate from opening when in use. Locking carabiners are used for important connections, such as at the anchor point or a belay device. There are four different types of locking carabiners, including a twist-lock and a thread-lock. Non-locking carabiners are commonly found as a component of quickdraws.

Carabiners are made with many different types of gates including wire-gate, bent-gate, and straight-gate. The different gates have different strengths and uses. Most locking carabiners utilize a straight-gate. Bent-gate and wire-gate carabiners are usually found on the rope-end of quickdraws, as they facilitate easier rope clipping than a straight gate. Wire gates are also lighter then other forms and are less likely to vibrate open (referred to as "gate chatter" when caused by striking a rock or swinging while suspended).

Carabiners are also known by many slang names including crab (seldom used) and biner (pronounced beaner).

Steel krabs are normally used by instructors when working with groups as the are harder wearing then aluninum alloy, but are much heavier.