File:Lead and pitch in screws.png
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Lead_and_pitch_in_screws.png （724 × 384像素，文件大小：28 KB，MIME类型：image/png）
摘要
| 描述 |
English: Diagram showing the difference between "lead" and "pitch" in screws. The lead is the axial distance the screw moves in one revolution. The pitch is the axial distance between adjacent threads. They are the same in "single-start" screws, but in "multiple-start" screws the lead is equal to the pitch muliplied by the number of "starts". Alterations to original drawing: Removed dimensioning and added colored labels |
| 日期 | |
| 来源 | Downloaded original drawing from Erik Oberg, A. L. Valentine, Joseph M. Stabel (1910) Screw thread cutting, 3rd Ed., The Industrial Press, New York, p.4, fig.2 on Google Books |
| 作者 | 未知 |
| 授权 (二次使用本文件) |
Public domain in USA - Published in USA prior to 1923 |
许可协议
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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2011年4月3日 (日) 17:14 | | 724 × 384（28 KB） | Chetvorno | {{Information |Description={{en|Diagram showing the difference between "''lead''" and "''pitch''" in screws. The lead is the axial distance the screw moves in one revolution. The pitch is the axial distance between adjacent threads. They are the same i |
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