| 摘要 |
<p>Disclosed is a bolt that can be tightened without using a specialized tool, cannot be loosened after being tightened, and yet can be removed in emergencies. The theft-prevention bolt comprises: a fastening bolt comprising a first locking section provided to one end thereof and a bolt shaft to the center of which a concavity is hollowed; a tightening bolt that has a head section provided-at the surface facing the locking section of said fastening bolt-with a second locking section, which rotates the aforementioned fastening bolt only in one direction, and that has a fastening shaft attached removably to said head section and inserted into the aforementioned concavity; and a lock section that is affixed to the aforementioned fastening shaft. Also, the theft-prevention bolt is provided with a covering member that covers the joining section of the locking section of the aforementioned fastening bolt and the locking section of the aforementioned tightening bolt. The aforementioned covering member can be configured in a hat shape, a ring shape, and a sleeve shape.</p> |
