When it comes to traditional archery, there are a lot of skills worth learning. But if there's one knot every archer should know how to tie, it's the nail knot, also known as the constrictor knot.
Originally developed for fly fishing, the nail knot has become the go-to knot in archery for attaching accessories like nocking points, peep sights, clickers, and more. It's simple, secure, adjustable, and far superior to the old method of stacking overhand knots and covering them with glue.
If you've never learned the nail knot, now is the time.
Why Use a Nail Knot?
Many archers start by tying a series of overhand knots around their string and then adding glue to keep everything in place. While this can work, it has some drawbacks.
The nail knot offers two major advantages:
1. It Won't Come Unraveled
Overhand knots can loosen over time, especially when exposed to repeated shooting, weather, and string movement. Even glued knots can eventually fail.
A properly tied nail knot cinches tightly around the string and stays put, providing a much more reliable attachment point.
2. It Allows for Easy Adjustment
One of the biggest benefits of a nail knot is adjustability.
When setting up a nocking point, you can leave the knot slightly loose while tuning your bow. This allows you to make small adjustments to your nocking point height until arrow flight is perfect. Once you've found the ideal position, simply tighten the knot fully and lock it in place.
For archers tuning traditional bows, this flexibility is incredibly valuable.
Materials You'll Need
To tie a nail knot, you'll need:
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10–12 inches of serving material
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A lighter for burning tag ends
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Optional: a glue stick
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Optional: a pencil, nail, or similar object
Many archers like to rub the serving material across a glue stick before tying. This stiffens the serving slightly and makes it easier to work with, though it isn't required.
Method 1: Tying a Nail Knot Without a Tool
The nail knot can be tied entirely by hand.
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Leave one tag end pointing to the left.
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Wrap the serving material over the tag end and around the bowstring 4–8 times.
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Loosen the wraps slightly.
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Feed the opposite tag end back through the center of the wraps.
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Ensure both tag ends cross underneath the serving wraps.
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Pull both ends tight.
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Trim excess material.
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Carefully burn the tag ends.
Once tightened, you'll have a clean, secure knot that grips the bowstring tightly.
Method 2: Using a Pencil or Nail
Many archers find this method easier, especially when learning.
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Place a pencil alongside the bowstring.
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Lay the serving material along the string.
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Wrap the serving around both the string and pencil 4–8 times.
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Feed the opposite tag end through the tunnel created by the pencil.
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Pull the pencil out.
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Tighten the knot.
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Trim and burn the tag ends.
The pencil creates a convenient channel that makes feeding the serving through much easier.
Fine-Tuning Your Nocking Point
One of the smartest ways to use a nail knot is to leave the ends slightly longer during the tuning process.
By not fully tightening the knot immediately, you can slide it up or down the string in small increments while testing arrow flight. Once your bow is tuned and arrows are flying cleanly, tighten the knot completely and trim the excess.
This small trick can save time and make bow tuning much easier.
Final Thoughts
The nail knot may be simple, but it's one of the most useful skills an archer can learn.
Whether you're installing a nocking point, attaching a peep sight, or setting up a clicker, the nail knot provides a secure, adjustable, and professional solution. It's reliable, easy to learn, and once you've tied a few, you'll likely never go back to overhand knots and glue again.
If you're serious about improving your archery setup, commit this knot to memory. It may be the most important knot you'll ever learn as an archer.
Stay Shatterproof.