| 摘要 |
GH-205 A dowel fastening support device for insertion into a bored hole of a structural element having a support member outside the bored opening and an elongated shank having pivotable triangular-shaped gripping members for insertion in said bored hole, said gripping members being so configured that the forward edge of each member is spaced from the adjacent interior surface of said bored hole, and the device is provided with a pointed element at the end of the shank remote from the support end portion for automatically centering the dowel device, when the latter is inserted in said bored opening. |
