| 摘要 |
PROBLEM TO BE SOLVED: To provide a nut fastener that can be easily fixed to an open hole formed at a base material.SOLUTION: A nut fastener 1 is constituted by a nut part 4 arranged at one side of an installing open hole 3 opened at a prescribed position of a plate-like base material 2 and a nut fixing part 5 arranged at the other side of the installing open hole 3, and it is installed and fixed to the installing open hole 3 by a caulking device. In the nut fastener, a female thread part 42 extending from one end part 41 of the nut part 4 within a prescribed range inside of it and a guide hole 44 extending from the other end within a prescribed range inside of it are formed. The nut fixing part 5 has at least a guide part 51 having a substantial equal outer diameter to an inner diameter of the guide hole 44, a first engaging part 53 arranged at a base part of the guide part 51 and engaged with a peripheral edge of the guide hole 44, and a second engaging part 55 arranged at a base part of the first engaging part 53 and engaged with a peripheral edge of the installing open hole 3.SELECTED DRAWING: Figure 1 |
