DMM Ultra O Locksafe – Green (BCC)
The classic DMM Ultra O is an oval locking carabiner designed for maximum versatility and balance. Its symmetrical, oval shape makes it ideal for use with assisted braking systems, pulleys, swivels, and shackles, providing a stable and even load regardless of configuration. This makes it a favorite choice for arborists, rescue personnel, and professionals in access techniques.
Features
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Oval shape for perfect symmetry
The rounded basket shape ensures that connection points are automatically centered under load. This provides a smooth and stable operating feel without the sudden "clicks" that often occur with D-shaped carabiners. -
Versatile applications
Perfect for rope access, tree care, and fall protection systems, as well as part of pre-rigged rescue systems. -
Keylock nose for frictionless connection
DMM's patented Taperlock mechanism increases strength under side loading and prevents the carabiner from snagging on slings, ropes, or equipment. -
Captive bar option
Prevents unwanted rotation and ensures that the load is always correctly aligned – along the major axis for maximum strength. (Captive bar sold separately.)
Gate type
Locksafe (triple lock)
Self-locking gate for maximum security and easy one-handed operation.
Technical specifications
| Feature | Value |
|---|---|
| Dimensions | 63 x 109 mm |
| Weight | 74 g |
| Breaking strength (closed) | 25 kN |
| Breaking strength (open) | 7 kN |
| Breaking strength (side loaded) | 12 kN |
| Opening | 19 mm |
| Certifications | EN362:2004 B, EN12275:2013 X/B, UIAA121:2009 |
Limited 2025 Edition
BIG CANOPY CAMPOUT (BCC)
This special edition Ultra O Locksafe Green BCC is part of DMM's 2025 collection – made to support Friends of Glenan Wood, which preserves one of Scotland's rare temperate rainforests on the Cowal Peninsula in Argyll.
Purchasing this carabiner directly contributes to the protection and preservation of Glenan Wood.
Read more about this year's project here: Friends of Glenan Wood
Want to know more about what Big Canopy Campout does? Follow this link!