Mammut Classic HMS Carabiner
Best reliable screwgate for climbers needing smooth, snag-free belay performance.
This is the workhorse carabiner you’ll reach for on every multipitch route. Its pear shape makes belaying effortless, and the clever orange safety indicator removes any guesswork about whether you’re locked in. You sacrifice the speed of a quick-lock gate for the absolute reliability of a screwgate that won't fail when things get icy.
$17.95
at
Mammut
Who it's for
- Belayers using Munter hitches or bulky rope setups
- Climbers prioritizing visual confirmation of gate security
- Winter climbers needing easy operation with thick gloves
Who should skip it
- Weight-conscious alpine climbers counting every gram
- Climbers seeking the speed and safety of auto-locking gates
- Adventurers climbing in sandy, icy, or dirty environments
Performance breakdown
Belay Compatibility
Pear shape optimizes rope flow for smooth, consistent belaying.
Locking Reliability
Screwgate mechanism remains dependable even in freezing or gritty conditions.
Safety Visibility
Orange warning indicator provides instant visual confirmation of an unlocked gate.
Snag Resistance
Key lock nose design ensures clean clipping without catching on gear.
Handling Ergonomics
Medium-sized frame balances grip comfort with manageable weight for long climbs.
Durability
Robust construction minimizes rope wear during heavy, repetitive use.
Key Specs
Material
Aluminum
Shape
Pear
Gate Type
Screw Gate
Major Axis Strength
24 kN
Minor Axis Strength
9 kN
Open Gate Strength
8 kN
Gate Opening
24 mm
Length
109 mm
Width
69.5 mm
Weight
63 g
Know before you buy
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Ask Metto anything about the Mammut Classic HMS Carabiner before you decide.
