Product Code: F1512019

  • 0000


Last pieces available

Select a colour and/or size to show accurate delivery options.

Click & Collect: FREE
Buy now and collect from store
Standard Delivery: FREE
Buy now and deliver to your home.
Named Day UK Delivery: £4.95
Buy now for delivery to your home
Returns and Exchanges
28 day returns to UK stores and online

Check availability in your local store

Product Information

An I-Beam back construction on this Big Boa HMS Screwgate Karabiner from DMM reduces the weight by almost 25%. The large size can accommodate multiple knots whilst the clean nose prevents hang-ups.

FREE STANDARD UK DELIVERY on all orders 27th - 30th November 2015

If you wish to return any climbing equipment or helmet that you purchased from our website or by phone for a refund or exchange, you must do so within 14 days of receiving the item. Please read our Returns and Exchanges policy for more information. This does not affect your statutory rights.

Product Features

  • Large clean nose HMS locking biner
  • Ideal for rigging can accomodate multiple knots
  • Easy to handle in gloves
  • Strong I-Beam construction to save weight
  • Strength
    • Gate closed: 25kN
    • Gate open: 8kN
    • Minor Axis: 10kN
  • Gate opening: 25mm
  • Weight: 83g

Need help choosing? The Knowledge will help you find the perfect product


Big Boa HMS Screwgate Karabiner reviews verified by Reevoo

4 reviews

Reviews from: Sort by:
(9.3 out of 10)
Ease of use
Value for money
Overall rating
Scores 9.3 out of 10 based on 4 reviews
Show more score details
(9 out of 10)


The wide gate opening and wide top beam.
Reviewer left no comment
Confirmed purchase: 26 October 2015
Published on: 09 November 2015
(9 out of 10)


Keswick Enthusiast
Excellent Belay screwgate, plenty of space, good gate action.
Reviewer left no comment
Confirmed purchase: 30 August 2015
Published on: 30 October 2015
(9 out of 10)


The large gate and extended spine allow for large diameter ropes to clip in at easy. 3 clove hitchs can be attached inside makong it perfect for anchor setups. Nice hold to your hand very ergonomica, a simple screw gate but with more options for add safety DMM have this krab in perfect shape. Its deagined with a function and forfills that function.
It is a tad heavy but there's always gonning to be a lighter version.
Confirmed purchase: 06 May 2015
Published on: 01 June 2015