Patent ID: 7118315

Claim:
A spike nail structure comprising a first blade and a second blade that are coupled together to form a nail body, the nail body including: a striking section located on a upper side of the nail body and formed by bending head sections outwards that are located respectively on a upper portion of the first blade and the second blade having a lag spike guiding hole in the center; a upper guiding sleeve formed by extending hole walls of the lag spike guiding hole downwards to direct insertion of a lag spike; a lower guiding sleeve formed by inverted conical walls and located below the upper guiding sleeve; a screw guiding section located between the upper guiding sleeve and the lower guiding sleeve on a position of the first blade and the second blade corresponding to each other and formed in a specification matching the traveling path and the pitch of screw threads of the lag spike having at least one thread guiding sleeve to direct fastening and positioning of the lag spike; and a nail point section located on a lower portion of the nail body consisting of a first point section of the first blade and a second point section of the second blade that are coupled together, the first point section having a size and length greater than that of the second point section, the first point section further having an indented recess to hold the second point section closely, wherein the first point section has at least one first longitudinal reinforced rib and the second point section has at least one second longitudinal reinforced rib corresponding with and offset from the at least one first longitudinal reinforced rib, the at least one first longitudinal reinforced rib and the at least one second longitudinal reinforced rib protrude outwardly in opposing directions.