ASME B18.2.1 TABLE 2 Standard Hex bolts and screws, Inch series 的尺寸
尺寸图和技术图
关键尺寸和技术参数
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Dimensions in inches (1 inch=25.4 mm) sourceASME B18.2.1 - Table 2 Hex Bolts |
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| Publication date: 2010 | |||||||||
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d Thread size
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UNC (nr of threads x inch) | UNF (nr of threads x inch) | UN (nr of threads x inch) | H basic | E min |
LT (l< 6')
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LT (l> 6')
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G min
|
F basic
|
|
1/4
|
20 | 28 | - | 0.172 | 0.237 |
0.75
|
1
|
0.484 | 0.438 |
|
5/16
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18 | 24 | - | 0.219 | 0.298 | 0.875 |
1.125
|
0.552 | 0.5 |
|
3/8
|
16 | 24 | - | 0.25 | 0.360 |
1
|
1.25
|
0.620 |
0.563
|
|
7/16
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14 | 20 | - | 0.297 | 0.421 |
1.125
|
1.375
|
0.687 |
0.62
|
|
1/2
|
13 | 20 | - | 0.344 | 0.482 |
1.25
|
1.5
|
0.826 |
3/4
|
|
5/8
|
11 | 18 | - | 0.422 | 0.605 |
1.5
|
1.75
|
1.033 |
15/16
|
|
3/4
|
10 | 16 | - | 0.5 | 0.729 |
1.75
|
2
|
1.240 |
1.125
|
|
7/8
|
9 | 14 | - | 0.578 | 0.852 |
2
|
2.25
|
1.447 |
1.313
|
|
1
|
8 | 12 | - | 0.672 | 0.976 |
2.25
|
2.5
|
1.653 |
1.50
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| 1-1/8 | 7 | 12 | 8 | 0.75 | 1.098 | 2.5 | 2.75 | 1.859 | 1.625 |
| 1-1/4 | 7 | 12 | 8 | 0.844 | 1.223 | 2.75 | 3 | 2.066 | 1.875 |
| 1-3/8 | 6 | 12 | 8 | 0.906 | 1.345 | 3 | 3.25 | 2.273 | 2 |
| 1-1/2 | 6 | 12 | 8 | 1 | 1.470 | 3.25 | 3.5 | 2.480 | 2.25 |
| 1-5/8 | - | - | 6-8 | 1.094 | 1.591 | 3.5 | 3.75 | 2.616 | 2.438 |
| 1-3/4 | 5 | - | 6-8 | 1.156 | 1.716 | 3.75 | 4 | 2.893 | 2.625 |
| 1-7/8 | - | - | 6-8 | 1.25 | 1.839 | 4 | 4.25 | 3.099 | 2.813 |
| 2 | 4.5 | - | 6-8 | 1.344 | 1.964 | 4.25 | 4.5 | 3.306 | 3 |
| 2-1/4 | 4.5 | - | 6-8 | 1.5 | 2.214 | 4.75 | 5 | 3.719 | 3.375 |
| 2-1/2 | 4 | - | 6-8 | 1.656 | 2.461 | 5.25 | 5.5 | 4.133 | 3.75 |
| 2-3/4 | 4 | - | 6-8 | 1.813 | 2.711 | 5.75 | 6 | 4.546 | 4.125 |
| 3 | 4 | - | 6-8 | 2 | 2.961 | 6.25 | 6.5 | 4.959 | 4.5 |
| 3-1/4 | 4 | - | 6-8 | 2.188 | 3.210 | 6.75 | 7 | 5.372 | 4.875 |
| 3-1/2 | 4 | - | 6-8 | 2.313 | 3.461 | 7.25 | 7.5 | 5.786 | 5.25 |
| 3-3/4 | 4 | - | 6-8 | 2.5 | 3.726 | 7.75 | 8 | 6.198 | 5.625 |
| 4 | 4 | - | 6-8 | 2.688 | 3.975 | 8.25 | 8.5 | 6.612 | 6 |