| 摘要 |
A connector for fixing a screw to a hollow tube comprises a rectangular elongate cylindrical sleeve that fits inside the tube. Opposing convergent members are drawn towards each other by threading forward the screw nut through rotating the converging member to urge the sleeve parts radially outwards to fix the connector firmly inside the tube. Alternatively the operation of the convergent members can be carried out by a screwdriver from the left-side by rotating the screw forward. |
