| 摘要 |
<p>Provided is a metal insert collar (1) or an insert nut (21) that is embedded in a resin member or a metal member. The metal insert collar (1) or insert nut (21) has a collar body (2) or a nut body (22) that is formed into a tubular shape by bending a metal plate. Recesses (3, 24), having a truncated pyramid shape or a truncated cone shape in which the shape of the opening becomes larger than the shape of the bottom, are disposed regularly in the height direction and circumferential direction of the collar body or the nut body on the outer peripheral surface of the collar body or the nut body.</p> |
