The Double Overhand Loop Knot is a very handy loop knot for creating a largish loop at the end of your leader – in the case of a paternoster rig being used for ‘bottom bashing’ or reef fishing, the loop is passed through the eye of a sinker of the type commonly referred to as a snapper lead.
The hooks are then attached\presented above the sinker via either a dropper knot or twisted dropper knot that is tied in the same leader as the double-overhand-loop knot.
The Double Overhand Loop Knot has poor knot strength, often quoted at about 50% of the breaking strain of the line that it is tied in, depending on the variation of the sinker loop knot that is tied. However, in the case of its use to attach a sinker, it is plenty strong enough, in fact, quite a few anglers prefer the sinker knot to fail if a sinker gets wedged in the reef; this is preferable to breaking off higher up, especially if one of your hooks further up the leader has a fish attached.
Please note that as far as nomenclature goes, it is important to including the term ‘loop’ when referring to this knot as there are other knots known as double overhands. It is also confusing to refer to any of the sinker loops as a dropper knot, although some older Australian texts do so.Reads: 1446