Uni Knot

Name: How to Tie the Uni Knot
Uploaded: 2024-01-01
Description: The most versatile knot in fishing. Use it for hooks, line-to-line connections, and braid to leader. The Uni knot system — two Uni knots back-to-back — can replace virtually every other knot in your arsenal.

Terminal tackle Beginner

Uni Knot

The most versatile knot in fishing. Use it for hooks, line-to-line connections, and braid to leader. The Uni knot system — two Uni knots back-to-back — can replace virtually every other knot in your arsenal.

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About the Uni Knot

The Uni Knot (also called the Duncan Loop) is the most versatile fishing knot ever devised. Mastering a single knot gives you a terminal connection, a line-to-line join, and a loop knot all in one. Many experienced anglers use only the Uni knot system their entire fishing career.

It's especially valuable for braided line, where many other knots slip or fail. The looped-wrap design grips braid effectively, making it one of the few terminal knots that works reliably on all three line types.

Best Used For

Ideal applications

✓ All line types including braid
✓ Hooks, lures, and swivels
✓ Line-to-line connections (double-uni)
✓ Braid-to-leader joins

Not ideal for

✗ Situations requiring a non-slip loop
✗ Maximum strength offshore applications

Step-by-Step Instructions

Follow these 5 steps to tie the Uni Knot. Watch the video above while following along.

Step 1: Thread and double back

Pass 6 inches of line through the hook eye. Double the tag end back alongside the standing line, forming a loop.

Step 2: Wrap through the loop

Pass the tag end through the loop and wrap it around the doubled section six times, moving toward the hook eye.

Step 3: Tighten the wraps

Hold the wraps and pull the tag end to snug the coils together into a loose knot on the doubled line.

Step 4: Slide to the eye

Pull the standing line to slide the knot down to the hook eye. The knot slides easily while wet.

Step 5: Wet and seat firmly

Wet thoroughly, then pull the standing line hard to seat the knot tight against the eye. Trim the tag end close.

Pro Tips

Six wraps is standard — use more wraps for lighter line
The knot slides when wet, so keep it moist while positioning
For braid, increase to 8-10 wraps for better grip
For double-uni (line-to-line), tie two Uni knots facing each other then pull together

Common Mistakes

Not enough wraps for the line diameter
Letting the knot dry before sliding it to the eye
Pulling the tag end instead of the standing line to slide the knot
Uneven wraps that prevent the knot from seating smoothly

Frequently Asked Questions

The Uni Knot is recommended for Mono, Fluoro, Braid. The most versatile knot in fishing. Use it for hooks, line-to-line connections, and braid to leader. The Uni knot system — two Uni knots back-to-back — can replace virtually every other knot in your arsenal.

The Uni Knot retains approximately 90% of the line's breaking strength when tied correctly. Always wet the knot before tightening to maintain maximum strength.

An experienced angler can tie the Uni Knot in about 30 sec. Beginners may take longer at first, but with practice you'll be tying it without thinking.

The Uni Knot is rated as a beginner-friendly knot — easy to learn and reliable for new anglers.

The Uni Knot is ideal for: All line types including braid, Hooks, lures, and swivels, Line-to-line connections (double-uni), Braid-to-leader joins. See the full guide for more applications.

Both serve similar purposes but differ in technique and ideal applications. See the Uni Knot guide and the Palomar Knot guide to compare strength, speed, and ideal line types.