Page 72 - Adlard Coles "The Knot Bible"

HITCHES

Double blackwall hitch
KNOT SCORE
The blackwall hitch isn’t the most reliable of knots, so the double blackwall Strength
was created to make it more secure. There are two ways of tying a double Security
blackwall: with the extra turn in the hook itself (as shown), or with the Diffi culty Tying
Diffi culty Untying
extra turn in its shank. Try both, and see which one works best for you.
Usefulness
Both are temporary knots intended for immediate use.

1 Take a turn around the hook, 2 Pass the working end around 3 Pass the standing part over the
as for the single blackwall hitch. the hook to make a second turn. two turns so it jams them against
the hook.