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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.

D-Shaped for simplicity; loads connector along the major axis

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.

Keylock clean nose for snag free connection

DMM's patented Taperlock closing mechanism increases gate push-in and cross gate strength using a special flared profile on the nose of the carabiner, as well as allowing a snag free connection for your ropes, slings and devices.

Captive bar option for security

Many of our connectors can be supplied cross-drilled to accommodate captive bars. This means that the lanyard or attachment cannot be removed and ensures that the direction of force applied in the event of a fall is along the major axis of the connector, giving maximum strength and holding power. The captive bars themselves are not for load bearing use.

Product Name	Product Code	Colour	MBS (Major Axis)	MBS (Minor Axis)	MBS (Gate Open)	Dimensions	Weight	Gate Opening (X)	Certification	NSN Code
Ultra D Screwgate	A332	Titanium/Lime	30kN	12kN	9kN	66 x 113mm	80g	23mm	EN 362:2004 B/T, EN 12275:2013 B
Ultra D Kwiklock	A333	Titanium/Red	30kN	12kN	9kN	66 x 113mm	84g	22mm	EN 362:2004 B/T, EN 12275:2013 B
Ultra D Kwiklock ANSI	A333ANSI	Titanium/Turquoise	30kN	16kN	9kN	66 x 113mm	100g	16mm	EN 362:2004 B/T, ANSI/ASSE Z359.12-2019, CAN/CSA Z259.12-16
Ultra D Locksafe	A337	Titanium/Green	30kN	12kN	9kN	66 x 113mm	84g	22mm	EN 362:2004 B/T, EN 12275:2013 B, NFPA 1983:2017 T
Ultra D Locksafe ANSI	A337ANSI	Titanium/Gold	30kN	16kN	9kN	66 x 113mm	100g	16mm	EN 362:2004 B/T, ANSI/ASSE Z359.12-2019, CAN/CSA Z259.12-16, NFPA 1983:2017 T
Ultra D Locksafe - iD	A337-ID	Titanium/Green	30kN	12kN	9kN	66 x 113mm	84g	22mm	EN 362:2004 B/T, EN 12275:2013 B, NFPA 1983:2017 T
Ultra D Kwiklock ANSI - iD	A333ANSI-ID	Titanium/Turquoise	30kN	16kN	9kN	66 x 113mm	100g	16mm	EN 362:2004 B/T, ANSI/ASSE Z359.12-2019, CAN/CSA Z259.12-16
Ultra D Locksafe ANSI - iD	A337ANSI-ID	Titanium/Gold	30kN	16kN	9kN	66 x 113mm	100g	16mm	EN 362:2004 B/T, ANSI/ASSE Z359.12-2019, CAN/CSA Z259.12-16, NFPA 1983:2017 T
Ultra D Screwgate	A332MG	Matt Grey	30kN	12kN	9kN	66 x 113mm	80g	23.5mm	EN 362:2004 B/T, EN 12275:2013 B
Ultra D Kwiklock	A333MG	Matt Grey	30kN	12kN	9kN	66 x 113mm	84g	22mm	EN 362:2004 B/T, EN 12275:2013 B
Ultra D Kwiklock ANSI	A333ANSI-MG	Matt Grey	30kN	16kN	9kN	66 x 113mm	100g	16mm	EN 362:2004 B/T, ANSI/ASSE Z359.12-2009, CAN/CSA Z259.12-2011
Ultra D Locksafe	A337MG	Matt Grey	30kN	12kN	9kN	66 x 113mm	84g	22mm	EN 362:2004 B/T, EN 12275:2013 B, NFPA 1983:2017 T	8465-99-753-2462
Ultra D Locksafe ANSI	A337ANSIMG	Matt Grey	30kN	16kN	9kN	66 x 113mm	100g	16mm	EN 362:2004 B/T, ANSI/ASSE Z359.12-2009, CAN/CSA Z259.12-2011, NFPA 1983:2017 T

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.