Mammut Classic HMS Screwgate Alpine karabiner Calamint

When you're on a multi-pitch climb or setting up a top-rope belay, the last thing you need is a carabiner that jams, sticks, or feels awkward in the hand. The Mammut Classic HMS Screwgate Alpine Carabiner, with its pear-shaped HMS profile and smooth screw-lock mechanism, gives you a reliable, easy-to-handle connector that works for belaying, rappelling, and anchoring.

Who is it for

This carabiner is built for climbers and mountaineers who need a versatile, secure connector for dynamic belay systems. Its HMS shape also makes it ideal for rappelling and for building anchors, whether you're in the gym or on an alpine route.

Main features

• Screw-lock gate provides a secure, manual locking action for peace of mind
• Keylock nose prevents snagging on bolts or webbing
• Pear-shaped HMS design optimises rope friction for smooth belaying
• Hot-forged aluminium construction delivers a great strength-to-weight ratio
• Anodised finish adds durability and a touch of style

Specifications

• Carabiner type: HMS (pear-shaped)
• Locking mechanism: Screwgate
• Material: Aluminium
• Major axis strength: 24 kN
• Minor axis strength: 10 kN
• Open gate strength: 8 kN
• Gate opening: 24 mm
• Nose type: Keylock
• Construction: Hot forged
• Surface finish: Anodised
• Certifications: CE 0333, EN 12275, UIAA
• Intended use: Climbing, mountaineering, belaying, rappelling
• Rope compatibility: Single, half, and twin ropes

Tips

Always double-check the gate is fully locked before weighting the carabiner. Periodically clean and lubricate the screw mechanism to ensure smooth operation, especially after dusty or gritty climbing days.