Don't know if this will help, but I bought two of these "Branch Grippers"
(Model BRGPB) from " Catfish Connection" and replaced the string with
paracord. They work well on brush and tree branches and I would think
that if you dip the tips in FlexSeal liquid rubber, they would work on metal
as well. They work great for us up here on Rend & Shelbyville in Illinois.