| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock nut operated easily and high in fastening power, and moreover, capable of fastening effectively even singularly or in a combination of a plurality of the nuts.SOLUTION: A lock nut in which a screw hole is passed through a center in an axial direction and a polygonal part is formed in the outer periphery, includes a cut formed in a horizontal direction of the polygonal part, a fastening screw hole bored in the horizontal direction of the cut, and a fastening screw screwed in the fastening screw hole. The fastening screw hole is passed through to the screw hole in the center in the axial direction, and is formed in a pointed form in the vicinity of the screw hole. Moreover, the cut is opened in a side direction by fastening the fastening screw. |
