Originally Posted by nacra533
My first contribution to this great forum.
I use a homemade version of these on sailboats using 1/8 spectra or vectran to replace a clevis or shackle. Spectra handles the chafe a little better than vectran, but I have a lot of 1/8" vectran on hand. Probably some good applications for ultralight folks or hammocks.
These could be used in suspension systems in place of biners, marlin spike hitches and other areas where two lines or eyes needs to be joined quickly.
These work by allowing one side of the loop to adjust opening the eye and when tension is applied the eye closes and secures the knot end. Very easy to make if you have any skills at all splicing 12 strand.
Any strong stopper knot will work on the end, I use a special knot (it's probably a lanyard knot) so that I can cut the tails very short, but it is complex knot to tie while balancing the lengths of the two "legs". A good stopper knot with a little extra tail is much simpler.
They are very strong, the applications are for racing sailboats, where weight and strength are at a premium.
I believe APS sells these as well as the Tylaska Spool Shackle, which is another great way to form a cow hitch when you don't have access to the end of the line.
MOD'S EDIT: See Post 71 for Schneiderlein's findings re: load testing the shackles:
sweet.....this is the answer to the my spindrift storage issue.im going to replace the steel piece in the head end of my ridge runner.i wont have to take the suspension apart if i dont want to use spindrift.just undo the loop ,take the line out of webbing,pull the spreader bars and hammock out of the drift.reconect go to other side do the same .now you can roll up the drift ,and store it in the foot end rolled up nice, and neat.with this loop it will only take moments to deploy, or store,would be strong and light.great job dude you made my day....hairbear..ps ill cut a little slit in the drift so the knot can get through,using a small piece of velcro to seal it back up.id buy you lunch one day if we ever meet.