DMM HB Alloy Offset Stopper

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Designed to protect irregular and flared cracks that regular nuts cannot, each DMM HB Alloy Offset stopper is asymmetrically tapered with a robust 12 kN strength rating.

  • Features

    • Asymmetrical taper gives stable placements in offset cracks: offset taper protects cracks where normal nuts would not sit properly, such as flared cracks and peg scars
    • DMM recommends using these in conjunction with Wallnuts (not included) to find security in almost any crack for comprehensive all-season crack protection
    • Grooved faces improve security in irregular rock: a groove machined into their faces allows them to sit better in irregular placements and on highly featured rock
    • Allows placement in 2 orientations: Passive protection can be placed either side or face on, doubling the number of cracks any single piece can protect
    • Passive protection works in wet and icy conditions: Passive protection works by jamming in constrictions to prevent falls; it is suitable for use in all conditions
    • Nuts are mounted on wires set into a recess to reduce wear
    • Larger sizes have holes that reduce weight
    • Certification for all sizes: EN 12270:2013
    • Color-coded for easy size selection; colors are coordinated across passive and active protection, for quick selection of alternatives if your first choice doesn't fit
    • HB Alloy Offset #7: gold
    • HB Alloy Offset #8: blue
    • HB Alloy Offset #9: red
    • HB Alloy Offset #10: grey
    • HB Alloy Offset #11: turquoise


    View all DMM Nuts
  • Technical Specs

    Best Use

    Rock Climbing


    12 kilonewtons




    7: 12.0 / 15.1 millimeters

    8: 13.5 / 17.9 millimeters

    9: 17.1 / 21.4 millimeters

    10: 19.4 / 25.1 millimeters

    11: 23.2 / 30.0 millimeters


    7: 27 grams

    8: 30 grams

    9: 37 grams

    10: 45 grams

    11: 56 grams

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