O-shaped carabiner

7075 aluminum alloy O-shaped carabiner series, certified for professional climbing and industrial high-altitude protection by CE/EN/UIAA. The classic symmetric geometry effectively balances force, preventing off-axis shifting of pulleys, descenders, or ropes, making it the standard choice for connecting pulley systems and belay devices. Each nose features a Keylock snag-free design, and every unit undergoes an independent 7kN pre-pull test before leaving the factory to ensure safety and stability in extreme environments.

Key Features

• Classic Symmetric O-Shape Mechanics: Symmetric load distribution on both sides ensures that pulleys, ascenders, or dual-rope systems remain centered, preventing off-axis tilting.

• Keylock Snag-Free Nose: Smooth, snag-free nose design allows for clean and efficient handling of slings, runners, or hangers, preventing accidental snagging.

• Rigorous Factory Quality Control: Every carabiner is individually tested to a 7kN pre-pull load before shipment, ensuring uncompromising safety.

• 7075 Aerospace-Grade Aluminum Alloy: High strength-to-weight ratio; durable and impact-resistant, suitable for all types of harsh weather conditions.

• Four Locking Mechanisms:

  • Straight Gate ($46): Non-locking, rapid one-handed operation with a wide 25mm gate opening, ideal for quick clipping.

  • Manual Screw-Lock ($58): Classic threaded locking sleeve; manually tightened, compact design that is resistant to jamming from dirt and sand.

  • 2-Stage Auto-Lock ($69): Twist-to-open and auto-locks upon release, balancing speed with secure protection.

  • 3-Stage Auto-Lock: Triple-action mechanism (push, twist, open) provides the highest level of protection against accidental opening, meeting the most stringent safety standards for industrial high-altitude work and rescue.

Comparison of Specifications for the Four Models

• 【Straight Gate Carabiner | $46】

  • Strength: Major Axis 27kN | Minor Axis 8kN | Open Gate 7kN

  • Weight: ~77g | Dimensions: Width 63mm × Height 115mm | Gate Opening: 25mm

  • Certifications: CE EN12275

• 【Manual Screw-Lock | $58】

  • Strength: Major Axis 27kN | Minor Axis 8kN | Open Gate 7kN

  • Weight: ~84g | Dimensions: Width 63mm × Height 115mm | Gate Opening: 22mm

  • Certifications: CE EN12275, EN362

• 【2-Stage Auto-Lock | $69】

  • Strength: Major Axis 25kN | Minor Axis 8kN | Open Gate 7kN

  • Weight: ~84g | Dimensions: Width 63mm × Height 112mm | Gate Opening: 20mm

  • Certifications: CE EN12275, EN362, UIAA

• 【3-Stage Auto-Lock】

  • Strength: Major Axis 27kN | Minor Axis 7kN | Open Gate 8kN

  • Weight: ~84g | Dimensions: Width 63mm × Height 112mm | Gate Opening: 20mm

  • Certifications: CE EN12275, EN362, UIAA, XF494