pescaday

Fishing knots

Double uni knot

Joins two lines, even of different thickness or type, for example main line and leader.

medium Line: Monofilament, Braid, Fluorocarbon

How to tie it

  1. Lay the two line ends side by side, overlapping by about 20 cm.
  2. With the first end, tie a uni knot around the second line, with 5 to 6 turns.
  3. Pull this first knot tight, but do not slide it yet.
  4. With the second end, tie a uni knot around the first line in the same way. With braid, use more turns.
  5. Wet and pull on both main lines until the knots meet. Trim the ends.

Tip: Pull each of the two uni knots tight on its own before you slide them together. That gives a slimmer knot.

Common mistakes
  • Too few turns with braided line, so the braid slips through.
  • The ends cut too short before the knots have bedded down.

More knots

Sources (2)

Last checked 2026-10-10. Found a mistake? Write to [email protected].

Know more?

Additions, photos of your catches or a mistake in the text: write to us and we will gladly credit you as a helper.

Send a tip