Aluminum D-Shape Safety Carabiner 4KN 12KN 25KN Climbing Lock

Professional Aluminum D-Shape Safety Carabiner — Built for Serious Outdoor Use

Take your climbing and outdoor activities to the next level with this Professional Aluminum D-Shape Safety Carabiner. Crafted from hot-wrought aluminum alloy, this lightweight yet incredibly strong carabiner is available in three load-rated sizes — 4KN, 12KN, and 25KN — making it a versatile choice for everything from gear organization to high-load climbing and rescue operations. Available in a range of bold, eye-catching color combinations, it's easy to identify and retrieve even in the most demanding environments.

Made in Mainland China.

Key Features

• Multiple Size & Strength Options: Choose from 4KN (300 kg load), 12KN (1,200 kg load), or 25KN (2,500 kg load) to match your exact application needs.
• Hot-Wrought Aluminum Alloy Construction: Delivers an excellent strength-to-weight ratio, resisting corrosion and wear for long-lasting performance.
• D-Shape Design: The D-shape geometry shifts load to the strongest part of the carabiner spine, maximizing durability under stress.
• Locking Gate Mechanism: Secure, easy-to-operate locking gate provides reliable closure and prevents accidental opening during use.
• Vibrant Color Options: Available in Black & Orange, Orange & Blue, Black & Red, Orange, and Blue — quick-identification colors for busy work sites or outdoor adventures.
• Wide Range of Uses: Ideal for mountain climbing, rock climbing, outdoor adventure activities, aerial work, engineering protection, hoisting, and rescue operations.

Specifications

• Material: Hot-wrought aluminum alloy
• Sizes:
  • 4KN: 58.2 × 33.3 mm (2.29 × 1.31 in) | Max Load: 300 kg
  • 12KN: 80.3 × 46.2 mm (3.16 × 1.82 in) | Max Load: 1,200 kg
  • 25KN: 99.7 × 58.5 mm (3.93 × 2.30 in) | Max Load: 2,500 kg
• Color Options: Black & Orange, Orange & Blue, Black & Red, Orange, Blue
• Quantity: 1 pc per order

What's in the Box

• 1 × Aluminum D-Shape Safety Carabiner (your chosen size & color)

More Useful Tools & Accessories

Gear up with other handy products from our store:

• Belt Loop Pouch & Flashlight Holder Waist Pack — keep your tools organized and accessible on the go.
• Folding Telescoping Tripod for Outdoor Camping & Hiking — a reliable companion for outdoor adventures.
• Multi-Use Faucet Bubbler Wrenches & Repair Spanner — versatile tools for home and fieldwork tasks.

Learn more: OSHA on eye and face protection

Frequently Asked Questions

Q: What is the difference between the 4KN, 12KN, and 25KN carabiner options?

A: The rating indicates the maximum load capacity. The 4KN carabiner holds up to 300 kg and is suitable for light-duty use such as key hooks and gear organization. The 12KN version handles up to 1,200 kg and is ideal for general climbing and outdoor activities. The 25KN carabiner supports up to 2,500 kg and is designed for heavy-duty applications such as hoisting, rescue operations, and professional aerial work.

Q: Is this aluminum D-shape carabiner safe for rock climbing and rappelling?

A: This carabiner is made from hot-wrought aluminum alloy with a secure locking gate, making it suitable for climbing, rock climbing, outdoor expansion activities, aerial work, and rescue use. Always select the appropriate load-rated size (12KN or 25KN) for climbing and life-safety applications and inspect the carabiner before each use for signs of wear or damage.

Q: What color options are available for this safety carabiner?

A: This carabiner is available in Black & Orange, Orange & Blue, Black & Red, Orange, and Blue. The bold color combinations make it easy to quickly identify your gear at a glance, especially useful in busy outdoor or work site environments.

Q: Does a measurement tolerance apply to the listed dimensions?

A: Yes, please allow for a 1–2 mm measurement tolerance due to manual measurement. Actual colors may also vary slightly from product images due to screen display differences.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.