Page 199 - Buck Tilton - Outward Bound Ropes, Knots, and Hitches 2 ed.

Tuck the working end under the first turn of the

clove hitch and tighten.Note: When the knot will
need to be untied, the final tuck can be made as a
draw loop (see page 7).

Double Constrictor Knot

A VARIATION OF THE CONSTRICTOR KNOT THAT

BINDS EVEN MORE SECURELY
When ultimate power in a binding knot is required, the

double constrictor, the best of all binding knots, is the
answer. It has been compared to the grip of a boa
constrictor. When the diameter of whatever this knot is tied

to is large, the basic constrictor knot (see page 73) loses
some of its strength— and thus the double constrictor would

come into play. It can be used, for example, as a substitute
for hose clamps. With a short length of cord, the double
constrictor knot works great to hold a sack without a

drawstring closed.

Double Constrictor Knot: Step 1