Re: Alloy vs steel carabiners karabiners for tree work The ONLY screw gate biners that I have EVER had open were Stubais. That is back when I used them on the end of my climbing line for tie-ins. Then I shifted to using Black Diamond SuperLocks. This is a generation or two before autolockers were on the market.
There is no credible reason to fear aluminum biners for life support. If they pass visual inspection they are good to go. Not words from George...words from the Wizard of Iron. |