| 摘要 |
PURPOSE: A set anchor bolt is provided to prevent the rotation of a bolt when coupling a nut by employing an idle prevention unit on a bolt head and a socket. CONSTITUTION: A set anchor bolt comprises a bolt(105), a socket(108), and an idle prevention unit(110). The bolt has an angled head(102) on an end thereof which is inserted in a mounting hole formed in a wall, a shaft part(103), and a thread part(104). The socket is formed with a plurality of slots(107) in the radial direction so that the diameter of the socket is extended by the head which is pulled with a nut(106) coupled to the thread part and the socket is tightly fitted to the mounting hole. The idle prevention unit is provided on the bolt and the socket in order to prevent idling of the bolt when coupling the bolt with the nut.
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