To provide a structure with superior facility by effectively utilizing the screw gripping function by silicone bouncing putty in a fastener for fastening a screw and a bolt.

In this fastener, the silicone bouncing putty 1 is embedded in a space between a shaft 2a of the fastener 2 and a cylindrical body 4 thicker than the shaft, and is installed on the shaft. The cylindrical body 4 is used for housing and storing the putty. The silicone bouncing putty 1 is wound and installed on the shaft 2a, and is used for gripping the screw when necessary. In addition, a vessel having an opening one surface and a recessed part of a body can be used for housing and storing the putty. This fastener can be applied to a fastener such as a manual and power driver.