How to Attach a Leader to Braided Line

Quick Answer

The two best knots for attaching a leader to braided line are: Double Uni Knot (fast, reliable, works in the field with cold hands — use 5 turns on the braid side, 5 turns on the leader side) and FG Knot (maximum strength, thinnest profile, best for casting — requires practice but outperforms all other braid-to-leader knots). For very heavy leaders (60lb+), use the Albright Knot.

The braid-to-leader connection is one of the most important and most commonly tied knots in modern fishing. Almost every angler using braid ties this connection daily — and the quality of this knot affects both casting performance and fish-fighting strength.

Choosing Your Method

KnotBest ForStrengthProfileDifficulty
Double UniGeneral fishing, field re-ties, beginners85–90%ModerateEasy
FG KnotTournament, casting distance, saltwater95–100%Very thinIntermediate
AlbrightHeavy leader (60lb+), heavy tackle90–95%ModerateIntermediate

Double Uni Knot — The Field Standard

The Double Uni Knot is two Uni Knots tied back to back — one in the braid, one in the leader — that cinch against each other.

How to Tie

  1. Overlap the tag ends of the braid and leader by 8 inches
  2. Uni Knot in the braid: Form a loop with the braid tag end, make 5 wraps around both strands through the loop, wet and cinch
  3. Uni Knot in the leader: Form a loop with the leader tag end, make 5 wraps around both strands through the loop, wet and cinch
  4. Pull the main lines in opposite directions — the two knots slide together and lock
  5. Trim both tag ends close

Key detail: 5 wraps on the braid side, 5 wraps on the leader side. More wraps on the braid side help the slippery braid material grip. Some anglers use 6 wraps on the braid side and 4 on the leader side.


FG Knot — Maximum Performance

The FG Knot (see detailed guide) wraps the braid around the leader in alternating passes — the result is a connection thinner than the braid diameter.

Setup: Hold the fluorocarbon leader taut under tension (teeth, cleat, or knee). Weave the braid over-and-under the leader for 20 wraps. Finish with half hitches and a locking knot.

Why it’s worth learning: The FG Knot’s thin profile passes through rod guides without friction — this is the critical advantage for anglers who cast the leader knot through the guides on every cast, and for fighting fish where the knot repeatedly passes through the tip guide.


Albright Knot — Heavy Leader Applications

For connecting braid to heavy monofilament leaders (60–150lb) where the large diameter difference makes other knots impractical:

  1. Bend a 3-inch loop in the heavy leader
  2. Thread the braid through the loop, working from the closed end
  3. Wrap the braid around all three strands (both sides of the loop and the braid) for 12–15 turns
  4. Thread the braid back through the loop at the point where you started
  5. Wet and cinch while pulling both ends

Which Knot to Use When

Just started using braid: Double Uni Knot — learn it first.

Day-to-day bass fishing: Double Uni until you’ve learned the FG Knot reliably.

Tournament fishing: FG Knot for all setups where the leader passes through the guides.

Inshore saltwater: FG Knot.

Heavy offshore leader: Albright Knot.

Cold weather, rough conditions, field retie: Double Uni — it requires no fixed point and can be tied with partially numb fingers.