12mm Steel Boa HMS Locksafe Carabiner
SKU: DMM | DD-C857
- Regular price
- £19.50 Ex VAT
- £23.40 Inc VAT
- RRP: £21.67 Ex VAT
- Sale price
- £19.50 £19.50 Ex VAT
- Regular price
-
- £23.40 £23.40 Inc VAT
- Was £21.67 Ex VAT
Free Delivery Over £75 *
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Product information & specifications
DMM 12mm Steel Boa HMS Carabiner
The DMM 12mm Steel Boa HMS is a heavy-duty steel HMS carabiner designed for professional users who need high strength, generous internal volume and dependable versatility in demanding rope systems. Offering all the practical usability of its alloy counterpart but with a substantial 40kN strength rating, the Steel Boa is ideal for rescue, rigging, rope access and technical work at height.
Its HMS pear-shaped design provides a large gate opening and generous basket space, making it especially useful when connecting larger ropes, multiple components, pulleys or knot-based systems. The smooth, rounded internal form also helps components rotate cleanly within the connector, improving handling and usability in more complex setups.
If you need a large, high-strength steel carabiner for demanding professional use, the DMM 12mm Steel Boa HMS is an excellent choice.
Key Features
- Heavy-duty 12mm steel HMS carabiner
- 40kN strength rating
- Large gate opening for easy connection of bigger components
- High internal volume for ropes, knots and multiple attachments
- HMS pear shape encourages self-centring of connected devices
- Smooth rounded internal profile for easy rotation through attachment points
- Comfortable handling, even with gloves
Large HMS Shape for Maximum Versatility
The DMM Steel Boa HMS is built around the classic HMS / pear-shaped connector design, offering excellent versatility across a wide range of rope and rescue applications. The oversized basket allows devices and connectors to self-centre effectively, while also providing enough space for larger ropes and multiple components.
This makes it particularly useful for more technical or high-volume setups where a standard D-shaped connector may feel restrictive.
Ideal for Knots, Devices & Multiple Components
The extended basket of the DMM 12mm Steel Boa makes it especially well suited to systems using Italian hitches, pulleys, belay devices and rope tools. Knots can rotate more easily during operation, and connected hardware can sit more naturally under load.
The smooth internal profile also helps the carabiner move cleanly through attachment eyes and anchor points, improving usability in practical working environments.
Built for Professional Rope Systems
Manufactured from 12mm steel, the DMM Steel Boa HMS is designed for applications where durability and high strength are essential. It is particularly well suited to rope access, rescue, industrial safety, rigging and other heavy-duty rope systems.
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Steel HMS carabiner |
| Material | Steel |
| Bar Diameter | 12mm |
| Strength | 40kN |
| Shape | HMS / Pear shape |
Ideal For
- Rescue and emergency systems
- Rope access and industrial safety
- Rigging and anchor systems
- Belay and rope control devices
- Italian hitch and knot-based setups
Best For
The DMM 12mm Steel Boa HMS is best suited to professionals who need a high-strength steel HMS carabiner with large internal volume for complex, high-load rope systems.
Why Choose the DMM 12mm Steel Boa HMS?
The DMM 12mm Steel Boa HMS offers serious strength, excellent compatibility and dependable usability in demanding professional environments. For rope systems requiring a large, strong and versatile steel connector, it is a superb choice.
Karabiners
| Standard | EN362:2004/B |
|---|---|
| Gate Opening | 23mm |
| Weight | 278g |
| MBS Major | 40kN |
| Gate Action | 3-Way Autolock |
| Material | Steel |
DMM 12mm Steel Boa HMS Carabiner
The DMM 12mm Steel Boa HMS is a heavy-duty steel HMS carabiner designed for professional users who need high strength, generous internal volume and dependable versatility in demanding rope systems. Offering all the practical usability of its alloy counterpart but with a substantial 40kN strength rating, the Steel Boa is ideal for rescue, rigging, rope access and technical work at height.
Its HMS pear-shaped design provides a large gate opening and generous basket space, making it especially useful when connecting larger ropes, multiple components, pulleys or knot-based systems. The smooth, rounded internal form also helps components rotate cleanly within the connector, improving handling and usability in more complex setups.
If you need a large, high-strength steel carabiner for demanding professional use, the DMM 12mm Steel Boa HMS is an excellent choice.
Key Features
- Heavy-duty 12mm steel HMS carabiner
- 40kN strength rating
- Large gate opening for easy connection of bigger components
- High internal volume for ropes, knots and multiple attachments
- HMS pear shape encourages self-centring of connected devices
- Smooth rounded internal profile for easy rotation through attachment points
- Comfortable handling, even with gloves
Large HMS Shape for Maximum Versatility
The DMM Steel Boa HMS is built around the classic HMS / pear-shaped connector design, offering excellent versatility across a wide range of rope and rescue applications. The oversized basket allows devices and connectors to self-centre effectively, while also providing enough space for larger ropes and multiple components.
This makes it particularly useful for more technical or high-volume setups where a standard D-shaped connector may feel restrictive.
Ideal for Knots, Devices & Multiple Components
The extended basket of the DMM 12mm Steel Boa makes it especially well suited to systems using Italian hitches, pulleys, belay devices and rope tools. Knots can rotate more easily during operation, and connected hardware can sit more naturally under load.
The smooth internal profile also helps the carabiner move cleanly through attachment eyes and anchor points, improving usability in practical working environments.
Built for Professional Rope Systems
Manufactured from 12mm steel, the DMM Steel Boa HMS is designed for applications where durability and high strength are essential. It is particularly well suited to rope access, rescue, industrial safety, rigging and other heavy-duty rope systems.
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Steel HMS carabiner |
| Material | Steel |
| Bar Diameter | 12mm |
| Strength | 40kN |
| Shape | HMS / Pear shape |
Ideal For
- Rescue and emergency systems
- Rope access and industrial safety
- Rigging and anchor systems
- Belay and rope control devices
- Italian hitch and knot-based setups
Best For
The DMM 12mm Steel Boa HMS is best suited to professionals who need a high-strength steel HMS carabiner with large internal volume for complex, high-load rope systems.
Why Choose the DMM 12mm Steel Boa HMS?
The DMM 12mm Steel Boa HMS offers serious strength, excellent compatibility and dependable usability in demanding professional environments. For rope systems requiring a large, strong and versatile steel connector, it is a superb choice.
Karabiners
| Standard | EN362:2004/B |
|---|---|
| Gate Opening | 23mm |
| Weight | 278g |
| MBS Major | 40kN |
| Gate Action | 3-Way Autolock |
| Material | Steel |
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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.
