| 摘要 |
PURPOSE: A stud bolt for a fastener is provided to prevent breakage or bending at the drive tip by setting the accurate position to a fastening hole using guide serration. CONSTITUTION: A stud bolt(105) for a fastener comprises a fastening body and a bolt part. In the fastening body, serration of sawtooth shape is formed. In addition, guide serration is formed on the drive tip of the fastening body, after the serration, in order to help insertion into a fastening hole(103).
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