Carabiners
A12123TL Aluminium Twist-Lock Carabiner with Hook Nose
A12123TL is a large aluminium alloy twist-lock carabiner with a hook-type nose, rated at 25 kN with a 25 mm gate opening. It is a self-locking connector for belay, anchor and rope-work set-ups that need a big frame and an automatic gate.

Key features
- Twist-lock auto-locking gate
- Hook-nose design
- 25 kN breaking strength
- 25 mm opening, 122.6 x 79 mm, 100 g
Specifications
| Property | Value |
|---|---|
| Material | Aluminium alloy |
| Nose | Hook nose |
| Breaking strength | 25 kN |
| Gate opening | 25 mm |
| Length | 122.6 mm |
| Width | 79 mm |
| Weight | 100 g |
Product details
A12123TL is one of the largest aluminium frames in the range, measuring 122.6 x 79 mm and weighing 100 g. The listed breaking strength is 25 kN and the twist-lock gate opens to 25 mm.
Unlike the key-lock A121 models, this carabiner uses a hook nose, the traditional notched nose design, rather than a smooth key-lock profile. Hook noses are a traditional, robust design; the trade-off is that the nose can catch on slings or bolt hangers more easily than a key-lock nose, which buyers should weigh against the intended use. The twist-lock sleeve relocks automatically when released.
The size makes A12123TL useful where a rope, a device and several slings share one connector, for example at belay stations, in rescue haul systems or on work-positioning gear. A triple-lock version with the same listed dimensions is available as A12123TL-3. Tell us the certification target and marking needed, and Power Honour can quote OEM or private-label supply or a version modified to your drawing.
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