Boa Locksafe Carabiner
SKU: DMM | DD-A907
- Regular price
- £20.63 Ex VAT
- £24.76 Inc VAT
- RRP: £22.92 Ex VAT
- Sale price
- £20.63 £20.63 Ex VAT
- Regular price
-
- £24.76 £24.76 Inc VAT
Free Delivery Over £75 *
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Trusted UK Arborist Retailer
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Product information & specifications
DMM Boa HMS Carabiner
The DMM Boa HMS Carabiner is a high-strength, large-format connector designed for demanding arborist, rigging and rescue applications. Hot forged from 14mm aluminium bar, the Boa delivers an impressive 30kN major axis strength, making it ideal for heavy-duty use where reliability is critical.
Featuring a generous HMS (pear-shaped) basket, the Boa is built to handle complex systems with ease. Whether you're running multiple ropes, attaching rigging devices or setting up rescue systems, the large curved basket allows equipment to sit comfortably and operate smoothly without crowding.
The oversized design also makes the Boa exceptionally easy to handle, even when wearing thick gloves. Its ergonomic shape and wide gate opening ensure efficient clipping and operation in demanding working conditions.
Equipped with DMM’s patented Taperlock nose, the Boa provides increased gate strength while maintaining a clean, snag-free connection for ropes, slings and hardware.
Key Features
- Large HMS (pear-shaped) carabiner for rigging and rescue systems
- 30kN major axis strength for high-load applications
- Hot forged from 14mm aluminium bar for durability
- Spacious basket accommodates multiple ropes and devices
- Wide gate opening for easy clipping and handling
- Designed for use with gloved hands
- Taperlock nose increases strength and prevents snagging
- Keylock clean nose for smooth rope and device interaction
- Excellent for arborist rigging, climbing and rescue setups
Technical Specifications
| Carabiner Type | HMS (Pear Shape) |
|---|---|
| Major Axis Strength | 30kN |
| Construction | Hot Forged Aluminium |
| Bar Diameter | 14mm |
| Nose Type | Taperlock Keylock Nose |
| Best Use | Rigging, Climbing, Rescue, Arborist Systems |
Built for Heavy-Duty Arborist & Rigging Work
The DMM Boa HMS Carabiner is engineered for professionals who need a connector capable of handling complex setups and high loads. Its large basket, high strength rating and glove-friendly design make it a go-to choice for arborists, rope access technicians and rescue teams working in demanding environments.
Frequently Asked Questions
What makes the Boa different from standard carabiners?
The Boa has a much larger basket and higher strength rating, allowing it to handle multiple ropes and heavy loads more effectively than standard connectors.
Is this carabiner suitable for rigging systems?
Yes. The large HMS shape and 30kN strength make it ideal for arborist rigging and rescue setups.
Can it be used with gloves?
Yes. The oversized design and wide gate opening make it easy to operate even with thick work gloves.
What is the benefit of the Taperlock nose?
The Taperlock system increases gate strength while providing a smooth, snag-free connection when clipping ropes or equipment.
Karabiners
| Standard | EN12275:1998 EN362:2004/B |
|---|---|
| Weight | 86g |
| Gate Opening | 24mm |
| Gate Action | 3-Way Autolock |
| MBS Open | 8kN |
| MBS Minor | 10kN |
| MBS Major | 25kN |
| Material | Aluminium |
DMM Boa HMS Carabiner
The DMM Boa HMS Carabiner is a high-strength, large-format connector designed for demanding arborist, rigging and rescue applications. Hot forged from 14mm aluminium bar, the Boa delivers an impressive 30kN major axis strength, making it ideal for heavy-duty use where reliability is critical.
Featuring a generous HMS (pear-shaped) basket, the Boa is built to handle complex systems with ease. Whether you're running multiple ropes, attaching rigging devices or setting up rescue systems, the large curved basket allows equipment to sit comfortably and operate smoothly without crowding.
The oversized design also makes the Boa exceptionally easy to handle, even when wearing thick gloves. Its ergonomic shape and wide gate opening ensure efficient clipping and operation in demanding working conditions.
Equipped with DMM’s patented Taperlock nose, the Boa provides increased gate strength while maintaining a clean, snag-free connection for ropes, slings and hardware.
Key Features
- Large HMS (pear-shaped) carabiner for rigging and rescue systems
- 30kN major axis strength for high-load applications
- Hot forged from 14mm aluminium bar for durability
- Spacious basket accommodates multiple ropes and devices
- Wide gate opening for easy clipping and handling
- Designed for use with gloved hands
- Taperlock nose increases strength and prevents snagging
- Keylock clean nose for smooth rope and device interaction
- Excellent for arborist rigging, climbing and rescue setups
Technical Specifications
| Carabiner Type | HMS (Pear Shape) |
|---|---|
| Major Axis Strength | 30kN |
| Construction | Hot Forged Aluminium |
| Bar Diameter | 14mm |
| Nose Type | Taperlock Keylock Nose |
| Best Use | Rigging, Climbing, Rescue, Arborist Systems |
Built for Heavy-Duty Arborist & Rigging Work
The DMM Boa HMS Carabiner is engineered for professionals who need a connector capable of handling complex setups and high loads. Its large basket, high strength rating and glove-friendly design make it a go-to choice for arborists, rope access technicians and rescue teams working in demanding environments.
Frequently Asked Questions
What makes the Boa different from standard carabiners?
The Boa has a much larger basket and higher strength rating, allowing it to handle multiple ropes and heavy loads more effectively than standard connectors.
Is this carabiner suitable for rigging systems?
Yes. The large HMS shape and 30kN strength make it ideal for arborist rigging and rescue setups.
Can it be used with gloves?
Yes. The oversized design and wide gate opening make it easy to operate even with thick work gloves.
What is the benefit of the Taperlock nose?
The Taperlock system increases gate strength while providing a smooth, snag-free connection when clipping ropes or equipment.
Karabiners
| Standard | EN12275:1998 EN362:2004/B |
|---|---|
| Weight | 86g |
| Gate Opening | 24mm |
| Gate Action | 3-Way Autolock |
| MBS Open | 8kN |
| MBS Minor | 10kN |
| MBS Major | 25kN |
| Material | Aluminium |
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Delivery & Returns
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.

