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Astro Nut

Average Rating = 4.75/5 Average Rating : 4.75 out of 5
Item Details | Reviews (4)
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Metolius Astro Nuts Sizes 1-5 Spring 2009 With an added a transverse taper and silicon-bronze to the revolutionary Curve Nut by Metolius, these mini-nuts tenacious bite in each and every placement. The finest materials, combined with our patented shape, give you a powerful tool for protecting micro-sized fissures. We looked at many different alloys before settling upon silicon-bronze. Steel was just too hard for micro nuts and didnt allow them to seat into placements, while aluminum was too soft and didnt provide enough structural strength. Silicon bronze is the perfect material although very costly as it exhibits high strength, yet is still soft enough to let the nut bite into the rocks surface and seat into position with maximum holding power. Additionally, on our larger sizes, we are able to introduce curves into the faces of the Astro Nuts, giving them a massive placement advantage over regular, straight-sided pieces. The small collars on Curve Nuts are color-coded for quick identification. Astro Nuts are a huge addition to anyones rack, aid climbers, free climbers and alpinists alike. Features: Buy individuals OR pre-packaged sets Pre-packaged sets include 10 discount over purchasing individual units Size 1: Range min. max.: .12 - .24in. 3.1 - 6.1mm Strength: 440 lbf 2 kN Weight: 0.20 oz 5.7 g Size 2: Range min. max.: .14 - .24in. 3.5 - 6.1mm Strength: 440 lbf 2 kN Weight: 0.21 oz 6.0 g Size 3: Range min. max.: .16 - .24in. 4.1 - 6.1mm Strength: 550 lbf 2.5 kN Weight: 0.22 oz 6.2 g Size 4: Range min. max.: .18 - .26in. 4.6 - 6.5mm Strength: 550 lbf 2.5 kN Weight: 0.23 oz 6.5 g Size 5: Range min. max.: .21 - .29in. 5.3 - 7.4mm Strength: 550 lbf 2.5 kN Weight: 0.25 oz 7.0 g

4 Reviews

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Review 4 out of 5 stars

Review by: forkliftdaddy, 2005-05-09

Good stuff. Nice shape has lots of options. In the smaller sizes they aren't as small as some micronuts.

Review 5 out of 5 stars

Review by: tammarak, 2005-01-31

Expensive - but the adage, "you get what you pay for" couldn't apply more. The curved shape is similar to curved nuts but is especially fitting in these tiny nuts. I equalized the two smallest in the set to protect a traverse on the Angles Crest. Sure enough my second pitched and they held. Getting them out was a chore but i'm convinced they'll hold where other small pro won't.

Review 5 out of 5 stars

Review by: piton, 2004-04-30

astro nuts were a great purchase. found great placements for them in the gunks. astros seem to be a great combo of the hb offsets and bd micros

Review 5 out of 5 stars

Review by: blindslap, 2003-08-07

astro nuts rule! They fit in every constriction possible. Often times i'll look at the placement and it looks like the crack was custom made for the piece. The concave edges are perfect for getting around small crystals and they set up bomber triangulation.

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