Description
The DMM 30kN Boa HMS Screwgate Carabiner is a high-capacity connector designed for arborists, rope access technicians and rescue professionals who require exceptional strength, durability and versatility. Featuring DMM’s largest HMS-style basket, the Boa provides ample internal space for multiple rope connections, friction hitches, pulleys and complex rigging configurations commonly used in professional tree care.
Constructed from hot-forged aluminium, the Boa achieves an impressive 30kN major axis strength rating while maintaining a manageable weight for everyday climbing and rigging applications. Its generous basket design allows hardware and ropes to sit naturally within the connector, reducing crowding and improving efficiency when managing advanced climbing systems.
The screwgate locking mechanism offers simple, dependable security and is easy to inspect visually before and during use. A large 24mm gate opening provides excellent access when connecting to anchor points, pulleys, friction savers and work-positioning systems. The oversized shape also makes the carabiner easy to handle while wearing gloves, an important feature for arborists working in demanding weather conditions.
DMM’s patented Taperlock and Keylock nose design helps create a smooth, snag-free interface that prevents ropes, slings and hardware from catching during installation or removal. This improves workflow efficiency when moving through the canopy, setting redirects or adjusting rigging systems.
Popular among arborists for climbing, work positioning and light rigging applications, the Boa HMS Screwgate combines outstanding strength, large internal capacity and user-friendly handling. Its robust design makes it particularly well suited to professional tree care environments where reliability and ease of use are essential.
Key Features
- 30kN major axis strength rating
- Large HMS basket for multiple connections
- Screwgate locking mechanism
- 24mm gate opening
- Hot-forged aluminium construction
- Keylock nose for snag-free operation
- Taperlock technology for enhanced strength
- Easy handling with gloves
- Suitable for arborist climbing systems
- Ideal for rigging, positioning and rope management applications







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