Ultra O Durolock



Symmetrical profile for rigging ease; ultra-secure 4-stage gate

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

Durolock - An auto-locking gate requiring four separate actions to open. The most secure gate in complex and dynamic rigging systems, the Durolock maximizes protection from accidental gate opening.


Brand Name:
Carabiner Shape:
Lock Type:
Auto Lock
Titanium / Purple
74 g / 2.61 oz
Closed Gate:
25 kN
Minor Axis:
12 kN
63 x 109mm
Gate opening: 20 mm
Open Gate:
7 kN
Mfg Sku/Part Number:
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 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.
• EN 362:2004 B, EN 12275:2013 B

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