NUT, NUT MANUFACTURING DEVICE AND NUT MANUFACTURING METHOD

摘要

To provide a nut, a nut manufacturing device and a nut manufacturing method.SOLUTION: A nut is a nut 10 screwed into a bolt 20. The nut 10 comprises an inner peripheral part 11, an outer peripheral part 12, and an intermediate part 13. The inner peripheral part 11 has a deformed part 111 that is deformed toward the inner side of the inner peripheral part 11. The intermediate part 13 is positioned between the inner peripheral part 11 and the outer peripheral part 12. The intermediate part 13 has a first distance part L1 and a second distance part L2. In the first distance part L1, a distance between the inner peripheral part 11 and the outer peripheral part 12 is a first distance. The second distance part L2 is shorter than the first distance part. The deformed part 111 is arranged at a position corresponding to the first distance part L1.SELECTED DRAWING: Figure 1