Pigtail fixings work by screwing the threaded end into a surface or anchor point, while the looped end holds the object being fastened in place. The looped end can be attached to a hook, bracket, or other fastening point to secure the object firmly. A pigtail clip is a small yet essential fastening device used to organize, secure, and protect cables and wires in various environments—from residential setups to industrial installations. They prevent cables from tangling. pigtail fixings, also known as wire nuts or twist-on wire connectors, are commonly used in electrical installations to join or splice wires together. For use with low-tension such as braid, rope, twine and wire. Fits previously sold Premier 35" and 45" tall PigTail Posts.