
| 公、英制对照表、紧固件常用尺寸规格 | ||||||
| 规格 | 英寸 | 毫米 | 规格 | 英寸 | 毫米 | 毫米 |
| No.0000 | 0.021 | 0.5334 | 1/4 | 0.25 | 6.35 | 6 |
| No.000 | 0.034 | 0.8636 | 5/16 | 0.3125 | 7.9375 | 8 |
| No.00 | 0.047 | 1.1938 | 3/8 | 0.375 | 9.525 | 10 |
| No.0 | 0.06 | 1.524 | 7/16 | 0.4375 | 11.1125 | 11 |
| No.1 | 0.073 | 1.8542 | 1/2 | 0.5 | 12.7 | 13 |
| No.2 | 0.086 | 2.1844 | 9/16 | 0.5625 | 14.2875 | 14 |
| No.3 | 0.099 | 2.5146 | 5/8 | 0.625 | 15.875 | 16 |
| No.4 | 0.112 | 2.8448 | 3/4 | 0.75 | 19.05 | 19 |
| No.5 | 0.125 | 3.175 | 7/8 | 0.875 | 22.225 | 22 |
| No.6 | 0.138 | 3.5052 | 1 | 1 | 25.4 | 25 |
| No.7 | 0.151 | 3.8354 | 1-1/8 | 1.125 | 28.575 | 29 |
| No.8 | 0.164 | 4.1566 | 1-1/4 | 1.25 | 31.75 | 32 |
| No.9 | 0.177 | 4.4958 | 1-3/8 | 1.375 | 34.925 | 35 |
| No.10 | 0.19 | 4.826 | 1-1/2 | 1.5 | 38.1 | 38 |
| No.12 | 0.216 | 5.4864 | 1-5/8 | 1.625 | 41.275 | 41 |
| No.14 | 0.242 | 6.1468 | 1-3/4 | 1.75 | 44.45 | 44 |
| No.16 | 0.268 | 6.8072 | 1-7/8 | 1.875 | 47.625 | 48 |
| No.18 | 0.294 | 7.4676 | 2 | 2 | 50.8 | 51 |
| No.20 | 0.32 | 8.128 | ||||
| No.24 | 0.372 | 9.4488 | ||||
| #是用在美制标准上,英制标准不用#表示,是用/表示的,只是单位而己 | ||||||
| #0=0.06in,每增加1#則公稱徑加上0.013in 例: #4=0.06+4*0.013=0.112in=2.8448mm | ||||||
| 例: #4=0.06+4*0.013=0.112in=2.8448mm | ||||||
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