| 摘要 |
A large diameter curtain rod has a small, lamp shade finial fixed to the ends through an adapter. The adapter may have a screw with a wood-screw thread on one end and a machine-screw thread on the other. The wood-screw thread is inserted into the rod, and the finial is screwed onto the machine-screw thread. When the finial thread does not match the screw thread, a bushing is used to adapt the screw thread. An end cap can cover the end of the rod and be held in place by the bushing or the finial. For metal rods, an end cap has a female thread to engage the rod; and, a threaded stud for receiving a finial extends from the end cap.
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