Here is a proven big game offshore knot used by some of the best crews on the circuit. It simple and easy to tie and provides 100-percent strength. All you’ll need is a snap swivel and fishing line, that’s it.
Slide the double line through your snap swivel.
Next, take the double line and wrap 4 times around the double main line”from bottom to top.
Now, wrap the double line back down 4 times.
After wrapping down 4x’s your knot should look like this
Next, take the double line tag end and insert it through the small gap (just like a fisherman knot) as pictured.
Next, moisten the entire knot and pull from the main line and swivel.
Finally, pull and cinch down tight and then trim off the excess double line tag ends.