Page 112 - Patrick Moreau - Marine Knots How to Tie 40 Essential Knots
P. 112
2 - The construction of the square knot remains intact.
3 - With some materials, like leather, especially if it is new and, more particularly, if it has a square section,
add a twist using one of the two bights to increase the holding capacity.
Tied this way, it is truly like a vice.
