BACK TO BACK UNI KNOT

In this video, Casey explains how to tie a back to back uni knot.

Introduction

Good day guys, Casey here from Lured In Fishing.
Today I’d like to show you how to tie a back-to-back uni knot—a simple and reliable knot for connecting:

  • Leader line to braided line
  • Two nylon lines
  • Two fluorocarbon lines

It’s essentially just two uni knots tied together.

Step 1 – Prepare the Lines

  • Hold your leader line in one hand and your braid in the other.
  • Cross them so they overlap, and pinch them in the middle to hold them in place.

Step 2 – Tie the Uni Knot on the Braid Side

  1. Start with the braid side.
  2. Leave about 5–6 inches of tag end.
  3. Make a loop with the braid.
  4. Pass the tag end around both the loop and the leader line.
  5. Wrap six times.
  6. Pull the knot down tight.

Step 3 – Tie the Uni Knot on the Leader Side

  1. Switch to the leader side.
  2. Make a loop with the leader.
  3. Wrap the tag end around both the loop and the braid four or five times.
  4. Pull the knot down tight.

Step 4 – Pull Knots Together

  • You’ll now have two knots separated by a short distance.
  • Wet both knots and the section of line between them.
  • Pull on the main line of the braid and the main line of the leader until the knots slide together.

Step 5 – Finish the Knot

  • Trim both tag ends as close to the knot as possible.
  • The neater and shorter your tags, the smoother the knot will pass through your rod guides when casting.

Final Result

You now have a clean, strong back-to-back uni knot—ideal for connecting lines of different materials and diameters while maintaining strength and smooth casting performance.

Step-by-Step Instructions

1. Tie an Overhand Knot

  • Start with your leader line.
  • Make a small loop.
  • Pass the tag end through the loop and pull it down so it’s small but can still fit the line through later.

2. Attach the Lure

  • Pass the tag end through the lure’s eye.
  • Pull the line so the overhand knot sits about a thumbnail’s width from the lure.

3. Feed the Tag End Back Through

  • Pass the tag end back through the overhand knot.
  • Lightly snug it to check the distance from the lure.

4. Wrap the Blood Knot Coils

  • Wrap the tag end around the main line 5 times.
  • Instead of going through the lower loop (as in a normal blood knot), pass the tag end back through the overhand knot.

5. Tighten the Knot

  • Pull the main line, the coils, and the lure to seat the knot evenly.
  • Trim the tag end.

Result

You’ll have a clean loop knot that allows your lure to move naturally and helps prevent bibbed lures from veering to one side.

If you missed the HowTo tie a Loop Knot see below.