The Scaffold Knot is a very secure and strong adjustable slip loop which is able to grab firmly on a rail, bar or object.
A rope thimble can be added to increase durability, strength and rigidity.
This video was created to accompany ‘Marine Knots’ from Apple Books:
https://books.apple.com/us/book/marine-knots/id1559086806
From Google Play
https://play.google.com/store/books/details/Andy_Steer_Marine_Knots?id=JlQfEAAAQBAJ
@Angling Knots