Ultra D Kwiklock ANSI
Ultra D Screwgate
Ultra D Kwiklock
Ultra D Locksafe
Ultra D Locksafe ANSI
Ultra D Kwiklock ANSI iD
Ultra D Locksafe ANSI iD
Ultra D Kwiklock ANSI
Ultra D Screwgate
Ultra D Kwiklock
Ultra D Locksafe
Ultra D Locksafe ANSI
Ultra D Kwiklock ANSI iD
Ultra D Locksafe ANSI iD

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.

Product Name Product Code Colour MBS (Major Axis) MBS (Minor Axis) MBS (Gate Open) Dimensions Weight Gate Opening (X) Certification Price
Ultra D Screwgate - A332
A332 Titanium/Lime 30kN 12kN 9kN 66 x 113mm 80g 23mm EN 362:2004 B/T,
EN 12275:2013 B
£15.99
Ultra D Kwiklock - A333
A333 Titanium/Red 30kN 12kN 9kN 66 x 113mm 84g 22mm EN 362:2004 B/T,
EN 12275:2013 B
£19.99
Ultra D Kwiklock ANSI - A333ANSI
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
£21.99
Ultra D Locksafe - A337
A337 Titanium/Green 30kN 12kN 9kN 66 x 113mm 84g 22mm EN 362:2004 B/T,
EN 12275:2013 B,
NFPA 1983:2017 T
£20.99
Ultra D Locksafe ANSI - A337ANSI
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
£22.99
Ultra D Locksafe - iD - A337-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
£24.03
Contact DMM
Ultra D Kwiklock ANSI - iD - A333ANSI-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
£25.03
Contact DMM
Ultra D Locksafe ANSI - iD - A337ANSI-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
£26.03
Contact DMM

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.

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.