To permit mounting by only one worker by securing an inserting space between an upper rubber isolator and a lower rubber isolator.
A hanging and mounting device is provided with a hanging bolt 1, an upper nut 2, an upper rubber vibration isolator 4, a lower nut 5 and a lower rubber vibration isolator 7 while a mounting fitting 9 is inserted between the upper rubber vibration isolator 4 and the lower rubber vibration isolator 7, then, the upper nut 2 and the lower nut 5 are clamped to mount the mounting fitting 9 while pinching the same by the upper rubber vibration isolator 4 and the lower rubber vibration isolator 7. In this case, the bolt penetrating hole 4a of the upper rubber vibration isolator 4 is provided with a rib 10 to prevent the dropping of the upper rubber vibration isolator 4 by the self- weight of the same by contacting the rib 10 with the hanging bolt 1 and secure an inserting space between the upper rubber vibration isolator 4 and the lower rubber vibration isolator 7.