Uni Knot

Uni Knot

Also known as the Duncan loop or the Grinner knot, the uni knot not only connects your line to the hook but also joins the line to the arbor of a reel or swivel or any other rigging hardware. The uni knot has greater strength than the improved clinch knot, Snell knot and blood knot. It comes in handy when trying to join the line to terminal tackle.

How to Tie a Uni Knot

How to Tie a Uni Knot


  1. It saves you time untangling knots. If a tangle is noticed, you don’t have to tie the knot again. Just slide the knot open and take off the dropper, untangle the rest of the rig, slide the dropper back on and continue fishing.
  2. More turns of the line increase the breaking strength of the knot and improve it further.
  3. It is great for fishing a jig in heavy cover on braided or fluorocarbon lines.
  4. The nail knot, in contrast, is a bend and has no sliding loop.
  5. You might have to wet the line to lubricate stiff nylon.
  6. Can be used to fix the line on baitcaster


  1. Crossover uni knot – The line is connected to the spool with the help of a uni-knot and 2 figure of eights.
  2. Modified uni knot – for braided lines.
  3. New uni knot – Doesn’t weaken over time.




  • Strong
  • Easy to tie, quick
  • Great for mono, braided, heavy mono  and fluorocarbon lines
  • Secure
  • Versatile
  • Maintains 80-90% of the tippet breaking strength as opposed to the clinch knot’s 50%

Uni Knot/Duncan Loop Uses

  1. Sea fishing, fly fishing
  2. It is excellent when it ties a leader to your fishing line.
  3. Helps in tying the Snell knot, adding snelling to hooks.
  4. For making bobber stops
  5. Good for tuna fishing
  6. Attaching line to lure

How to make a Uni Knot for Braid – Video

How to Tie a Uni Knot Step by Step

  1. Pass the line through the eye of the hook and make a loop with the tag end
  2. Wrap the tag end multiple times over the line
  3. Take it out of the loop
  4. Pull the tag end and the standing part
  5. Make the loop of the desired size by pulling the standing part. Trim off excess tag end

Similar Knot

  1. Hangman’s knot – Used for capital punishment

2 responses to “Uni Knot”

  1. Hey there, cool post. I just enjoy the outdoors, fishing, camping and hunting. Folks spend way too much time indoors in front of the TV. Thanks for sharing & giving us inspired.

  2. Hey there, awesome article. I just enjoy the outdoors, fishing, hunting & camping. People spend far too much time indoors in front of the TV. Thanks for writing this & making us inspired.

Leave a Reply

Most Read