| 摘要 |
PROBLEM TO BE SOLVED: To provide a nut that is screwed into a screw shaft readily and quickly, prevents the nut being misused even if a plurality of nuts are concurrently used, reduces the number of components, improves work efficiency, and thereby reliably screws the nuts into the screw shaft.SOLUTION: The nut includes a divided receiving nut having a screw screwed into the screw shaft inside, a coupling means that is provided in the receiving nut for connecting the divided nut, and a cover nut having a screw screwed into the screw provided in the receiving nut outside. |
