General Climbing Discussion

Topic	Date	User
Should we stop placing carrots?	4-Jan-2010 At 12:19:02 PM	mikl law
Message
Tony Barton broke lots of biners and chains drop testing coach screws in rocks by throwing them off a local swing attatched to a chain, the bolts held. However, they seem to be soft metal so might be weaker than a glued in bolt or U. These heavy duty "Anchor screws" were used on Taipan wall but the rock was too hard and they snapped. I have seen stainless steel coach bolts, which might be strong enough, more testing required. I have thought of the possibility of using these in a stepped (12 mm to 8 mm hole), packed with 15 minute epoxy putty ,and screwing them in, = glue plus threaded holing power.

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