| 摘要 |
There is provided a T-nut having a tubular shank 2, an external flange portion 33 a extending outwardly from a first end of the shank 2, and an internal flange portion 33 b extending inwardly opposite to the external flange portion 33 a of the tubular shank 2, all of which are integrally formed from a metal plate by pressing. A hole 44 is formed at the vicinity of the center part of the internal flange portion 33 b. This hole 44 allows the oil to enter the inside of the tubular shank to the extent that the oil is served as a lubricant.
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