Patent ID: 8337130

Claim:
A T-nut comprising: a cylindrical shaft section that is integrally formed using a metallic material, the shaft section having a first end portion and a second end portion opposite to the first end portion, the shaft section having a first-end-portion-side opening at the first end portion and a second-end-portion-side opening at the second end portion, the shaft section including an internal thread at an inner peripheral surface thereof; a flange that extends outwardly from the first end portion of the shaft section; and a sealing member that seals the first-end-portion-side opening of the shaft section, the sealing member being formed of elastomeric resin, wherein the sealing member includes a circular cylindrical portion and a dome-shaped cover, the circular cylindrical portion closely contacting the inner peripheral surface of the shaft section and opening at a first-end-portion side, the dome-shaped cover being formed continuously to an edge of the circular cylindrical portion at a second-end-portion side, a top of the dome-shaped cover facing the second-end-portion side, an outer peripheral surface of the circular cylindrical portion having an externally threaded long-and-narrow protruding portion that seals a space at a root of the internal thread, and wherein, when the flange at the first-end-portion side of the shaft section is defined as an upper side, and the second-end-portion side of the shaft section is defined as a lower side, an upper edge of the sealing member is positioned in a same plane as an upper end surface of the flange or is positioned below the upper end surface of the flange.