Superfly EVO Screwlock Carabiner

A Screwlock carabiner features a threaded sleeve that you can twist to lock the gate securely in place. This mechanism prevents accidental openings, ensuring that the carabiner remains closed during climbing. It's crucial for safety, as it helps protect against falls and gear failure.

The Keylock Nose design eliminates the hook or notch at the end of the gate, allowing for smoother clipping and unclipping. This reduces the chances of snagging on ropes or other gear, making it easier to handle your equipment, especially in challenging climbing situations.

Major Axis Strength refers to the maximum force (measured in kilonewtons, kN) that a carabiner can withstand when the load is applied along its strongest axis. A carabiner with a major axis strength of 24kN is durable and capable of handling heavy loads, which is essential for ensuring your safety while climbing.

Minor Axis Strength indicates how much force a carabiner can handle when the load is applied along its weaker axis. With a minor axis strength of 11kN, this carabiner is still strong, but it's important to be aware that it is less robust in this orientation. Always use the carabiner in its strongest configuration for maximum safety.

Open Gate Strength measures the maximum force a carabiner can handle when the gate is not fully closed, with a rating of 9kN. This is a critical safety consideration, as it highlights the risks of using a carabiner that may not be securely locked during climbing activities. Always ensure your carabiner is closed and locked before use to prevent accidents.

To determine if a carabiner is suitable for your climbing needs, consider its strength ratings (major and minor axis strength, as well as open gate strength), locking mechanism (like screwlock), and design features (such as keylock nose). Ensure that the carabiner meets or exceeds the requirements for the type of climbing you plan to do, whether it's sport, trad, or alpine climbing.