Ultra D

The Ultra D is similar in size to the Ultra O but with even greater strength due to the back configuration. The pronounced D-shape forces the loading along the major axis of the carabiner to maximise strength. Perfect for use at the end of lanyards, and in fact for most other working at height applications.

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D-shaped connector bodies are designed to force the loads closer to the spine of the connector (the strongest orientation), therefore maximising strength. These are probably the most basic of all connectors in terms of shape, but this makes them a perfect choice in applications where strength and simplicity are paramount.
Product NameProduct CodeColourMBS (Major Axis)MBS (Minor Axis)MBS (Gate Open)DimensionsWeightGate Opening (X)Certification
Ultra D ScrewgateA332Titanium/Lime30kN12kN9kN66 x 113mm80g23mmEN 362:2004 B/T, EN 12275:2013 B
Ultra D KwiklockA333Titanium/Red30kN12kN9kN66 x 113mm84g22mmEN 362:2004 B/T, EN 12275:2013 B
Ultra D Kwiklock ANSIA333ANSITitanium/Turquoise30kN16kN9kN66 x 113mm100g16mmEN 362:2004 B/T, ANSI/ASSE Z359.12-2019, CAN/CSA Z259.12-16
Ultra D LocksafeA337Titanium/Green30kN12kN9kN66 x 113mm84g22mmEN 362:2004 B/T, EN 12275:2013 B
Ultra D Locksafe ANSIA337ANSITitanium/Gold30kN16kN9kN66 x 113mm100g16mmEN 362:2004 B/T, ANSI/ASSE Z359.12-2019, CAN/CSA Z259.12-16
Ultra D ScrewgateA332MGMatt Grey30kN12kN9kN66 x 113mm80g23.5mmEN 362:2004 B/T, EN 12275:2013 B
Ultra D KwiklockA333MGMatt Grey30kN12kN9kN66 x 113mm84g22mmEN 362:2004 B/T, EN 12275:2013 B
Ultra D Kwiklock ANSIA333ANSI-MGMatt Grey30kN16kN9kN66 x 113mm100g16mmEN 362:2004 B/T, ANSI/ASSE Z359.12-2009, CAN/CSA Z259.12-2011
Ultra D LocksafeA337MGMatt Grey30kN12kN9kN66 x 113mm84g22mmEN 362:2004 B/T, EN 12275:2013 B
Ultra D Locksafe ANSIA337ANSIMGMatt Grey30kN16kN9kN66 x 113mm100g16mmEN 362:2004 B/T, ANSI/ASSE Z359.12-2009, CAN/CSA Z259.12-2011

Durolock connector locking mechanism

Our unique Durolock mechanism minimises the chance of accidental gate opening. Earlier this year the versatile Ultra O connector was our fourth locking carabiner to be paired with this option. Watch this short video to find out more about the Durolock.