Screw fastening structure and nut member

• Main Authors: Nakayama, Ryoichi, Nakano, Shinji
• Format: Patent
• Language: English
• Published: 14.05.2002

The present invention relates to a screw fastening structure and a nut member, and in particular, to a screw fastening structure of the type that includes a male thread and a female thread to be electrically connected to each other, and a nut member of the type that has a female thread constituting a circuit element to be electrically connected to a mating male thread. A conductive male thread () has a thrust bearing flank () coated with an insulating paint layer (), and a conductive female thread () has a thrust bearing flank () formed with a conductive projection () to break through the paint layer () and bite in that flank ().