The Stopper Knot. Used to prevent the rope from pulling through a belay or rappel device. There are many cases the stopper knot will prevent the rope from pulling through a device.
The stopper knot should also be used with the figure 8 and bowline knots. This knot will help prevent the short end of the rope from pulling through the knot. It should be used anytime the end of the rope could possibly be pulled back through a knot.
The stopper knot is easy to tie. It takes most climbers less than 30 seconds to tie the stopper knot. It is an important part of protecting the climber. Use the stopper knot to prevent the end of the rope from slipping back through the knot and untying. Also at the end of the rope during a rappel or belay. The stopper knot will prevent the rope from pulling through the belay or rappel device. Also see overhand knot for alternate sequence.
Sequence to Tie a Stopper Knot
Start the knot by making a loop, and wrap the short end of the rope around itself twice.
Send the short end through the knot.
Tighten the stopper knot evenly.
Secure the end of any other knot using a stopper knot.
Knots for Climbers, 3rd (How To Climb Series)
This is an illustrated book providing sequences and examples for tying climbing knots. It covers all the common knots plus many other knots. The presentation uses clear color photos making it easy to understand and learn. Some of the knots are the Munter hitch, auto block, clove hitch, and figure eight. See them in use in the field along with how they are used with climbing equipment.
Features easy to understand, and illustrated instructional knot-tying for the novice climber. It's a nice, pocket-size book, portable and easy-to-use, with clear photos throughout to assist with learning.