The DMM Halfnut Set 1-11 is a full run of slimmed-down passive protection for shallow cracks, pin scars and the placements a standard nut is too wide for. All eleven weigh 250g together – 42% lighter than the equivalent Wallnut sizes.

Halfnuts aren't just a lighter rack; they get into places Wallnuts won't. The tapered shapes work in several orientations, the wire stems keep racking low-bulk, and colour-coding lets you pick the size by eye. Sizes 1-4 use a harder alloy, 5-11 a softer one that seats more securely in the rock. Choose the set if you're building a lightweight multi-pitch or alpine rack, or to fill the gaps in your existing nuts on thin, scarred cracks.

Why you'll love it

• Slim profile – seats in shallow cracks and narrow pin scars where a regular nut won't
• 42% lighter – than the equivalent Wallnut sizes, for a 250g full set
• Placement-friendly alloys – harder in sizes 1-4, softer in 5-11 for secure seating
• Multiple orientations – tapered shapes work several ways round
• Colour-coded – quick size selection on the rack

Good to know

• Complete set, sizes 1 to 11
• Set weight: 250g
• Wire stems for flexible, low-bulk racking
• Certified to EN 12270:2013
• Placement quality is critical – inspect all protection before use and follow DMM's instructions
• DMM stock code A1671/81A

Who it's for

Intermediate and advanced trad climbers building a lightweight rack for multi-pitch and alpine routes, or adding broad passive-protection coverage for shallow cracks and pin scars.