| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock type bolt and a locking method capable of resolving the loosening of a nut by fastening a fastening screw after fastening a member to be fastened with the bolt and nut.SOLUTION: A lock type bolt includes a bore part which is bored toward the head part direction from the top side of a shank, a female screw screwed on an inner circumference of the bore part, the bolt provided with a notch formed near an opening part of the bore part and a fastening screw screwed to the bore part. Further, a tapered part is formed in front of the bore part. Therein, a plurality of notches are bored near the opening part of the bore part. The locking method is characterized in that a member to be fastened is arranged on the bolt, subsequently, the member to be fastened is fastened with the nut and, thereafter, the fastening screw is screwed to the bore part to fasten the screwing nut. |
