| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nut and a fastening member that are easily manufactured, decreased in the volume for a transporting package, dispensing with the work of rotatably attaching without causing detachment of the nut and a washer, and can be manufactured and transported at low cost. <P>SOLUTION: The nut comprises: a nut body with a polygonal or circular outer circumferential wall, housing at least two pieces of nut segments which are screwed to the screw part of a bolt when rotated in the screwing direction after the bolt is inserted, and a nut segment urging spring urging the nut segments in the screwing direction; and a ring-like engaging groove turnable with an engaging piece formed to the washer that can be fixed to an attachment member formed on the outer circumferential part of the bolt insertion side of the nut body that can rotate a locking metal detachably engageable or lockable to an attaching member, and detachably engaging. <P>COPYRIGHT: (C)2013,JPO&INPIT |
