In view in the aforesaid issues, the major object in the present invention would be to deliver a double-shank Shooting Nails that could deliver an enhanced fastening. It incorporates a master nail and not less than one sub- nail. The master nail includes a master shank with an action portion. The action portion has not less than a single flange formed on the outer surface. The flanges are spaced at an interval equal to or slightly smaller than the thickness of a metal board to become nailed. When the master nail is nailed in to the metal board, the metal board is confined in between two neighboring flanges.
In one particular aspect with the Shooting Nails, the flange from the master nail has no less than a single notch formed on a very same corresponding longitudinal place to kind a minimum of one holding trough to hold the sub- nail. The sub- nail includes a leading finish having a coupling portion to become coupled with all the master shank surface.
In an additional aspect in the Shooting Nails, the sub- nail features a sloped surface on the tip, plus a notch formed on the outer surface of a secondary shank.
In another different aspect, the diameters from the flanges on the action portion from the master nail reduce gradually from the upper side towards the lower side to offer a firmer fastening just after nailing in to the board.