Knot library · 85% · Medium

Blood Knot

The classic for joining two lines of similar thickness. Fly anglers live by this one for building leaders.

Where it earns its place

Detail
Knot strength 85% of line strength
Difficulty Medium
Disciplines Coarse, Fly
Best for Line to Line, Similar Diameters, Leaders

How to tie it

  1. Overlap the two line ends by about 15cm.
  2. Wrap one tag end around the other line 5 times.
  3. Bring the tag end back and tuck it between the two lines at the centre.
  4. Repeat with the other tag end, wrapping in the opposite direction.
  5. Tuck the second tag through the centre gap (opposite side to the first).
  6. Moisten and pull both standing lines to tighten evenly. Trim both tags.

Want to watch it tied? Animated Knots has the blood knot. In the app the same steps sit beside the rig you are tying.

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