Goto Chockstone Home

  Guide
  Gallery
  Tech Tips
  Articles
  Reviews
  Dictionary
  Links
  Forum
  Search
  About

      Sponsored By
      ROCK
   HARDWARE

  Shop
Chockstone Photography
Australian Landscape Photography by Michael Boniwell
Australian Landscape Prints





Chockstone Forum - General Discussion

General Climbing Discussion

Topic Date User
Mechanical bolt test results 27-Nov-2010 At 3:29:54 PM Chuck Norris
Message
Really would be curious to know the results for the pull out strength of a 12 mm dyna bolt.

Only bolt I've placed in a roof completely upside down is one of those, from memory was pretty long maybe 3 or 4 inches - goodish rock (moonarie, but the on the chossy side for moonarie rock).

Mostly I placed 10 mm rawls (pretty long too) or truebolts in good rock so I'm happy they're all bomber.

The only bolts I placed (...that havent been replaced cos I did some appalling carrots that thankfully have been replaced...) that I worry a little about is one route on 2 inch (maybe 2.5) long stainless dynabolts in good rock but I didn't drill out the hangers, so the nut was flush with the top of the bolt. I worry a bit about the hangers loosening, although its not really a dogging route. Any thoughts on how these fare?

There are 17 replies to this topic.

 

Home | Guide | Gallery | Tech Tips | Articles | Reviews | Dictionary | Forum | Links | About | Search
Chockstone Photography | Landscape Photography Australia | Australian Landscape Photography | Landscape Photos Australia

Please read the full disclaimer before using any information contained on these pages.



Australian Panoramic | Australian Coast | Australian Mountains | Australian Countryside | Australian Waterfalls | Australian Lakes | Australian Cities | Australian Macro | Australian Wildlife
Landscape Photo | Landscape Photography | Landscape Photography Australia | Fine Art Photography | Wilderness Photography | Nature Photo | Australian Landscape Photo | Stock Photography Australia | Landscape Photos | Panoramic Photos | Panoramic Photography Australia | Australian Landscape Photography | High Country Mountain Huts | Mothers Day Gifts | Gifts for Mothers Day | Mothers Day Gift Ideas | Ideas for Mothers Day | Wedding Gift Ideas | Christmas Gift Ideas | Fathers Day Gifts | Gifts for Fathers Day | Fathers Day Gift Ideas | Ideas for Fathers Day | Landscape Prints | Landscape Poster | Limited Edition Prints | Panoramic Photo | Buy Posters | Poster Prints