| 摘要 |
A dowel inserted under pressure in a hole, including a head and a body which remain outside and inside the hole, respectively. The head is suitable for a clamp to pass through. The body includes a central core from which there emerge annular retention tabs having a slightly larger diameter than the hole, all provided with radial notches, and a centring annular projection. Each annular retention tab forms a pair with an annular abutment tab located, with respect to the former, in the position nearest the head. The annular abutment tab has a diameter that is smaller than that of annular retention tab and equal to that of the hole.
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