| 摘要 |
The invention provides a fastening method and a fastening tool which can stably fasten a nut to a bolt securely and with a small dispersion at a desired axial force. A fastened member ( 20 ) is fastened by inserting a bolt ( 21 ) to the fastened member ( 20 ), thereafter temporarily fastening a nut ( 22 ) and the bolt ( 21 ), pulling a leading end ( 21 b) of a shaft portion ( 21 c) of the bolt ( 21 ) in an axial direction of the bolt ( 21 ), rotating the nut ( 22 ) so as to screw into the bolt ( 21 ) while elastically deforming the bolt ( 21 ) so as to generate an axial force, and thereafter canceling the pulling of the bolt ( 21 ).
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