What is the Constrictor Knot used for?

Closing sack and bag mouths with a grip that won't let go; Securing hoses to fittings (as an improvised clamp); Starting off a pioneering lashing (the starting knot); Bundling poles, pipes, or bamboo together; Temporarily fastening things that need a strong grip.

How do you tie the Constrictor Knot?

The Constrictor Knot is one of the firmest binding knots there is: once tightened, it jams and won't loosen, gripping tight around the mouth of sacks, hoses, and bundles. The folding method forms the knot from a ready-made loop, ideal when the end of the object is free so you can slip the loop over it. Follow the illustrated step-by-step, with a photo for every stage, on Desbravai.

Is the Constrictor Knot hard to tie?

The Constrictor Knot is rated medium, in the Lashings category and is taught with a photo at every stage on Desbravai.

What precautions apply when using the Constrictor Knot?

It jams so tight that the only way out is often to cut the rope; Don't use it on anything that needs to be released later without sacrificing the rope; The bite can mark or dent delicate surfaces from the sheer grip.

Constrictor Knot

Q: What other names does the Constrictor Knot have?

It is also known as Constrictor Knot, Constrictor Knot (Folding Method), Nudo constrictor, Nudo del constrictor, Nó constritor, Nó de constrição, Noeud de constriction. (ABOK #1249)

A binding knot that cinches down tight and jams — ideal for closing sack mouths or securing hoses

Also called: Constrictor Knot, Constrictor Knot (Folding Method), Nudo constrictor, Nudo del constrictor, Nó constritor, Nó de constrição, Noeud de constriction · ABOK #1249

What it is for

Closing sack and bag mouths with a grip that won't let go
Securing hoses to fittings (as an improvised clamp)
Starting off a pioneering lashing (the starting knot)
Bundling poles, pipes, or bamboo together
Temporarily fastening things that need a strong grip