DMM 30kN Big Boa HMS Screwgate Carabiner  £19.00

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Matt Grey
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  • Product Description
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This is the ‘Big Daddy’ of lockers – the ultimate rigging biner and one which is super strong and super tough.

It is large enough to accommodate several knots and has a very wide gate opening – just what you need in a rigging situation. All of which makes it a great centre use biner, but the story doesn’t end there.

Despite its name, the Big Boa is surprisingly light; by giving it an I-Beam construction we’ve reduced the overall weight by almost 25%. Add in the fact that it is easy to handle in gloves and the appeal to winter climbers is obvious.



  •  Large clean nose HMS locking biner
  •  Ideal for rigging; can accommodate multiple knots
  •  Large gate opening
  •  Easy to handle in gloves
  •  Strong I-Beam construction to save weight (almost 25% reduction)
  •  Available with Screwgate, Quicklock and Locksafe locking systems
  • Conformance EN 362:2004 B/T, EN 12275:2013 B & H
Variant Strength
(Gate Closed)
(Gate Open)
(Minor Axis)
Gate Opening Weight Cat no
Boa Screwgate 30kN 9kN 12kN 24mm 95g A902
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