Ultra O Screwgate

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Symmetrical shape for centered loading on aiders, pulleys, and shackles

The DMM Ultra O's symmetrical rope baskets are ideal for assisted braking devices, pulleys, swivels and shackles. They also give stable loading characteristics, as attachments can self-center under load with minimal movement from the carabiner.


Brand Name:
Carabiner Shape:
Lock Type:
Screw Lock
2.36 oz / 67 g
Closed Gate:
25 kN
Minor Axis:
12 kN
63 x 109mm
Open Gate:
7 kN
Other Features:
• Gate opening: 22mm
• Certification: EN 362:2004 B/ T, EN 12275:2013 B
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 that 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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