| 摘要 |
PURPOSE: A bolt and a nut are provided to efficiently prevent releasing with one connector by directly installing an apparatus not unfastened by vibration. CONSTITUTION: A bolt(11) and a nut(13) are used as a connector for fixing a material to be fixed. Herein, in connecting the material by using only the bolt, the bolt is axially rotated to be connected in a screw hole. The material is contacted with a point of a screw pitch of the bolt. The point of the screw pitch inclined to the outside is connected while pushed to one side. The connected point of the screw pitch is mutually contacted by being elastically adhered to the outside. Thus, the releasing caused by vibration is prevented.
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