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#1 on this list
RockLock Screwgate Carabiner
Black Diamond
The default locker for anything that matters. A large, keylock-nose HMS shape with a hot-forged body, a smooth screwgate, and enough basket width to take a munter hitch, a belay device, and a glove-thick hand all at once. If you own one locking carabiner, own this one.
- Price
- USD 15.95
- Reader rating
- No reader votes yet
- How we assessed it
- Specification researched
#2 on this list
Plume HMS K3GH
Grivel
A full-size, fully rated HMS locker that weighs less than most wiregates. Grivel forges the Plume line thin where the load is not and leaves material where it is, which is how you get a pear-shaped locker light enough to carry three of without noticing.
- Price
- Check current price
- Reader rating
- No reader votes yet
- How we assessed it
- Specification researched
Specs side by side
| Spec | RockLock Screwgate Carabiner | Plume HMS K3GH |
|---|---|---|
| Weight | 89 grams | — |
| Gate Type | Screwgate | — |
| Major Axis Strength | 24 kN | — |
| Minor Axis Strength | 7 kN | — |
| Open Gate Strength | 7 kN | — |
| Gate Opening | 24 mm | Wide |
| Material | Hot-forged aluminum | Aluminum Alloy |
| Type | — | HMS Locking Carabiner |
| Locking Mechanism | — | Screwgate |
| Weight Class | — | Ultralight, full-sized |
| Manufacturer | — | Grivel |
What our reviewers liked and didn't
RockLock Screwgate Carabiner
- Exceptionally durable hot-forged construction
- Large HMS shape accommodates multiple ropes/knots
- Smooth, reliable screwgate mechanism
- Keylock nose prevents snagging
- Comfortable to handle, even with gloves
- Heavier than some minimalist locking carabiners
- Larger size can feel bulky on a light rack
- Screwgate can be slower than auto-lockers in some scenarios
Plume HMS K3GH
- Exceptionally lightweight for a full-sized HMS locker
- Generous gate opening and smooth screwgate action
- Full pear shape accommodates munter hitches and belay devices well
- Keylock nose prevents snagging during clipping
- Strategic forging maintains strength while minimizing weight
- Higher price point compared to standard HMS carabiners
- Thin profile might feel less substantial to some users
Prices change constantly — the figure shown is the last verified catalog price, and the buy buttons always go to the current listing.