Page 61 - Nate Fitch, Ron Funderburke "Climbing Knots"

Because slings and cordellette are attached to
components in a closed loop, a quick overhand knot
creates the redundant BHK. There is no loop to manage
in this case.

Slings, Cordellette, and the BHK

Cordellettes and slings can easily be brought together
in much the same manner as a static rope, but an over-
hand knot that is tied with double strands of material
is a redundant knot, without any extra effort required.
Sling with Load-Limiting Overhand
Knots: The Magic X
When load-limiting overhand knots are added to a
sliding/magic X anchor configuration, the result is a

48 CLIMBING: KNOTS