Conclusion manner of the structural screw and the conclusion tool which is used for that

摘要

P To provide a building screw and a method for fastening the building screw which are capable of preventing a jack-up phenomenon. PSOLUTION: The method for fastening a building screw is used to fasten a member W2 to be fastened such as wooden member and the like to a base material W1 such as a metal thin plate and the like by the use of a building screw 10, which includes a shaft portion 12 comprising a head portion 18 capable of being engaged with a driver bit and a screw portion 14, and a drill portion 22 capable of drilling a hole by being rotated in the reverse direction to the screw-in direction of the screw portion 14, and comprises a process of drilling a loose hole H2 ON the member W2 to be fastened and a through-hole H1 ON the base material W1 by means of the drill portion 22 rotated in the reverse direction to the screw-in direction of the screw portion 14, and a screw-in process of screwing the screw portion 14 in the base material W1 by rotating the building screw 10 in the screw-in direction before the screw portion 14 reaches the through-hole H1 of the base material W1. PCOPYRIGHT: (C)2011 and JPO& INPIT