How to Tie the Nail Knot (Fly Line to Leader)

Step-by-Step Instructions

1. 1

   Hold the end of the fly line, a nail or small tube, and the leader butt section together parallel.

2. 2

   Wrap the leader butt around the fly line and nail/tube 6 times, working toward the end of the fly line.

3. 3

   Pass the tag end of the leader through the channel created by the nail/tube.

4. 4

   Carefully remove the nail/tube while holding the wraps in place.

5. 5

   Wet the knot and pull both ends simultaneously to tighten the wraps.

6. 6

   Trim tag ends flush.

Pro Tip

Use a nail knot tool — it costs $3 and makes this knot easy. Without one, it's the hardest knot on this list. This is the standard fly line connection for all fly fishing setups.

When to Use the Nail Knot (Fly Line to Leader)

The Nail Knot (Fly Line to Leader) is best suited for fly line to leader connection and monofilament lines. With a breaking strength of 90% line strength, it's a reliable choice for connecting your line to hooks, lures, or swivels. This is a specialized knot best suited for experienced anglers targeting specific connection needs.

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