| 21. | The dowels were helically grooved like a screw thread to locate the wires precisely in position.
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| 22. | The top is typically threaded with a 5 / 8 " x 11 tpi screw thread.
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| 23. | Slide hammers can be attached to objects in multiple ways including screw threads, hooks, and others.
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| 24. | Internal screw threads may be cut with dies.
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| 25. | :It sounds to me ( assuming there are no cracks ) like the screw threads are stripped.
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| 26. | Most hardware screw threads are right-handed helices.
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| 27. | For example, a leadscrew incorporates a screw thread, which is an inclined plane wrapped around a cylinder.
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| 28. | Cabinetmakers know that it's easier to drive screws into wood if you lubricate the screw threads first.
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| 29. | Sonor invented the modern screw thread drum-construction and the metal snare drum in the early 20th century.
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| 30. | :Many light bulbs have an Edison base ( that's the wide screw threads at the bottom ).
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