The palomar knot is an essential knot for all fishermen to know. It’s used to connect line to terminal tackle (hooks and lures).
This knot is normally recommended for braided line, but there is no reason it can’t be used for mono or fluoro.
When tied correctly, it can provide almost the same capacity of the fishing line. It’s not possible for the knot to untie, only to break. Fortunately, it’s one of the simplest knots to learn.
The important thing about the palomar knot is getting the end loop up over the hook. Some tutorials show the knot over the shank of the hook, but that significantly weakens the knot. There is also some debate about whether that same loop should go completely over the knot or if it can go just over the eye of the hook. I personally was always taught to bring the loop completely over the whole knot. So that is how we teach it.
How to Tie a Palomar Knot