Knot of the Day: Constrictor Knot
The tightest grip in the knot world.
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If you need a knot that holds tight and won't let go, the Constrictor knot is it.
It grips onto whatever you tie it around and hold like a clamp.
It's simple, strong and sometimes, the only way to untie it is with a knife.
Yes, it's that tight.
Knot Overview
- Type: Binding Knots
- Also Known As: Gunner’s Knot, Whip Knot, Builder’s Knot, X Knot
- ABoK Reference: #1188
What's Special About the Constrictor Knot
The Constrictor Knot is like the Clove Hitch but has an extra twist (called a riding turn) that locks everything hard.
Once tightened, it’s very difficult to undo and sometimes it's impossible. That’s actually what makes it so reliable.
You can use it to close a bag, clamp a hose or bind things solid.
It’s even used in surgery for tying off blood vessels. That should tell you something.
But here's the thing; it's not always easy to untie. If you pull it too tight on certain ropes, you might need a knife to get it off.
That's the price you need to pay for that kind of grip.
Where'll You Use It?
Anytime you'll need a firm, no-slip bind.
- Tying the necks of sacks or bags
- Holding frayed rope ends before whipping
- Securing bundles of rods, sticks, or pipe
- Temporary cable ties
- Makeshift hose clamps
The Constrictor Knot looks like a Clove Hitch at first glance, but it’s more stronger.
Watch the Constrictor Knot in Action
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