WARNING: Dangerous Bolts on Welsh Slate

by Jack Geldard - UKC Chief Editor Mar/2014
This news story has been read 5,797 times

Mark Reeves Pull Testing Bolts on the Slate, 70 kb
Mark Reeves Pull Testing Bolts on the Slate
© Mark Reeves
Llanberis-based climber Mark Reeves has reported on his blog that many well used bolts on the Slate of North Wales have become dangerously loose.

Following a report of a bolt failure, Mark has been out testing the bolts of popular routes with several pulling out at 5kn, a very low load.

However, Mark has just informed us:

"I tested some bolts in the wet yesterday and the results were even worse, two pulled at 1kn." 

The bolts that are most affected are those that get the most use, particularly lower-offs on popular routes.

It is thought that the soft slate has worn inside the bolt holes meaning the expansion bolts can move and become loose. Treat any bolt that moves with extreme caution. Resin bolts are not affected.


Forums ( Read more )
This has been read 5,797 times