PETZL Unisex Bm'D aluminum D carabiner, Gray, UNI — TRIACT-LOCK automatic lock, 32 kN

The Petzl Bm'D is a lightweight, asymmetrical aluminum D‑shape carabiner with a TRIACT‑LOCK automatic triple‑action gate designed for secure tool and device connections at height.

Built for demanding work-at-height scenarios, the Bm'D pairs a high strength-to-weight H‑profile with a fluid internal geometry and Keylock nose to make clipping, rotating and managing connectors faster and less prone to snagging. Its reinforced sleeve and gate resist frontal and lateral impacts, while multiple safety certifications ensure it meets professional standards across regions.

How does the Bm'D balance weight and strength for vertical work?

The H‑profile aluminum body delivers an optimized resistance-to-mass ratio so you carry less without compromising safety. At only 105 grams (3.7 oz), it still meets high strength ratings for major and minor axes and open gate force.

• Major axis strength: 32 kN
• Minor axis strength: 16 kN
• Open gate strength: 10 kN
• Lightweight aluminum construction: 105 g (3.7 oz)

What features make clipping and handling easier on-site?

The Bm'D's interior is shaped to reduce catches and promote smooth rotation when attaching devices or lanyards. The Keylock nose prevents involuntary snagging during operations, and the TRIACT‑LOCK automatic triple‑action gate keeps the gate positively locked without extra manual steps.

• Fluid interior design lowers risk of catch points and eases rotation
• Keylock system avoids accidental snags on anchors or gear
• TRIACT‑LOCK automatic locking for secure, hands‑off closure
• 18 mm gate opening for easy device and rope passage

Can this carabiner be used with descenders and positioning lanyards?

The asymmetrical D form concentrates load along the major axis, making it well suited to connect descenders, positioning lanyards and other fall‑protection equipment. A reinforced ferrule increases frontal and lateral resistance where the lever meets the body, improving durability in regular use.

• Asymmetrical D‑shape for secure device coupling
• Reinforced sleeve increases gate and lever resilience
• Compatible with Finger Captiv accessory to ensure correct orientation
• 18 mm gate clearance accommodates common devices

Which standards and certifications does the Bm'D satisfy?

The Bm'D is certified for professional use across multiple international standards, making it suitable for rescue, rope access, industrial and technical applications that require compliance. Check local regulations for application‑specific requirements.

• CE EN 362 and EAC
• ANSI Z359.12 and CSA Z259.12
• NFPA 1983 Technical Use
• Gate opening: 18 mm; dimensions: 4.41" x 2.64" x 0.85"

Who is this for: The Petzl Bm'D is aimed at professionals and serious hobbyists who need a dependable, lightweight connector for rope access, arboriculture, rescue and industrial height work. If you want a carabiner that minimizes weight without sacrificing certified strength, smoother handling and proven locking security, the Bm'D is designed to fit into tool rigs, belays, descender interfaces and positioning systems.