Ultra O Locksafe



The DMM Ultra O Locksafe's symmetrical rope basket is ideal for assisted-braking devices, pulleys, swivels and shackles. It also gives stable loading characteristics, as attachments can self-center under load with minimal movement from the carabiner. Triple-action auto-locking mechanism for extra safety.

Features DMM's Locksafe gate: an auto-locking gate requiring three distinct actions to open (twist, push up, open).


Brand Name:
Carabiner Shape:
Lock Type:
Auto Lock
74 g
Closed Gate:
25 kN
Minor Axis:
12 kN
Open Gate:
7 kN
63 x 109mm
Gate Opening:
EN 362:2004 B/ T, EN 12275:2013 B
Other Features:
Keylock nose eliminates snagging
This carabiner's nose slots into a groove in the gate, allowing it to achieve full strength without a gate notch. This creates a clean internal profile that won't catch on gear, bolts or slings, giving easier clipping and removal from systems.
Oval carabiner for rigging stability and central positioning of attachments
Oval carabiners have curved rope baskets for compatibility with slings, ropes, pulleys, and devices. The baskets allow attachments to self-center when loaded, giving greater stability in systems than D-shaped carabiners. Their symmetry allows them to work both ways in rigging systems.
I-Beam construction for optimum strength to weight ratio
I-Beam construction techniques allow carabiners to be lighter without compromising strength. This is achieved through hot forging, a process which allows metal to be made into complex shapes that improve functionality.

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