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Black Diamond Micro Stopper Rock Climbing Nuts
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Micro Stoppers Rock Climbing Nuts

  • Copper/iron mix
  • Patented swage
  • Flexible
  • Less prone to fraying
  • Sizes 1 and 2 are for direct aid only
  • 0.14 oz - .74 oz


  • Please Note - ALL CLIMBING NUT SALES ARE FINAL.

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    Black Diamond Micro Stopper Rock Climbing Nuts - Micro Stopper Rock Climbing Nuts by Black Diamond are the most durable micro nut on the market and a great choice for free climbers who use them a lot. Versatile thin crack pro, trapezoidal Micro Stoppers feature a subtle curve on their longest face for maintaining utility in near-parallel cracks while still catching on crystals and irregularities. A copper/iron mix in the head provides bite in thin placements, while the patented swage is stronger, more flexible and less prone to fraying and each stopper is equipped with a durable, galvanized steel cable. Whether you are a free climber or an aid climber, you will not want to leave home without Micro Stopper Rock Climbing Nuts by Black Diamond.

    Please Note - ALL CLIMBING NUT SALES ARE FINAL

    Black Diamond Micro Stopper Rock Climbing Nuts:

    Size Dimensions Strength Weight
    1 0.147 - 0.200" (3.7 - 5.1 mm) 2 kN, 450 lbf 0.14 oz (4 grams)
    2 0.182 - 0.255" (4.6 - 6.5 mm) 3 kN, 674 lbf 0.25 oz (7 grams)
    3 0.202 - 0.330" (5.1 - 7.5 mm) 5 kN, 1124 lbf 0.32 oz (10 grams)
    4 0.233 - 0.330" (5.9 - 8.4 mm) 6 kN, 1349 lbf 0.46 oz (13 grams)
    5 0.290 - 0.370" (7.4 - 9.4 mm) 6 kN, 1349 lbf 0.53 oz (15 grams)
    6 0.345 - 0.410" (8.8 - 10.4 mm) 10 kN, 2248 lbf 0.74 oz (21 grams)

    Please Note: - Sizes 1 and 2 are for direct aid only.

    Click Here For A Sizing Chart

    These are much stronger for the size than regular aluminum nuts. They are pretty tough and set nicely. You should really only use the steel stoppers in hard rock like granite, use brass ones on stuff like sandstone.

    Matt Oakley

    New York

    3/6/2013

    Micro Stopper by Black Diamond for Climbing

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