Uni-Knot (Duncan Loop, Paragum, Hangman’s Noose, Grinner Knot, and Grapevine Knot)

Fly fishing knot used to attach the fly to the tippet; sport fishing knot used to attach the hook/lure to the line.

Materials: monofilament-light to heavy

Advantage: strong knot, very reliable

Disadvantage: not good for super lines, may slip