ASME B18.2.2 TABLE 4 Norma Dimensões para Hexagon nuts, inch series
Porcas sextavadas e porcas sextavadas de fixação
Desenho dimensional e diagramas técnicos
Principais dimensões e parâmetros técnicos
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Dimensions in inches (1 inch=25.4 mm) sourceASME B18.2.2 TABLE 4 Publication date : 2010 |
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Nominal size or Bsic major dia. of the Thread
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Nr. of threads x inch |
G min
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G max | F min |
F max
|
H min | H max | H1 min | H1 max | ||
| UNC | UNF | ||||||||||
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1/4
|
20 | 28 |
0.488
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0.505 | 0.428 | 0.438 | 0.212 | 0.226 | 0.150 | 0.163 | |
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5/16
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18 | 24 |
0.557
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0.577 | 0.489 | 0.5 | 0.258 | 0.273 | 0.180 | 0.195 | |
|
3/8
|
16 | 24 |
0.628
|
0.650 | 0.551 |
0.562
|
0.320 | 0.337 | 0.210 | 0.227 | |
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7/16
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14 | 20 |
0.698
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0.794 | 0.675 |
0.625
|
0.365 | 0.385 | 0.240 | 0.260 | |
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1/2
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13 | 20 |
0.840
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0.866 | 0.736 |
0.75
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0.427 | 0.448 | 0.302 | 0.323 | |
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9/16
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12 | 18 | 0.910 | 1.010 | 0.861 |
0.812
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0.473 | 0.496 | 0.301 | 0.324 | |
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5/8
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11 | 18 |
1.051
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1.083 | 0.922 | 0.937 | 0.535 | 0.559 | 0.363 | 0.387 | |
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3/4
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10 | 16 |
1.254
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1.299 | 1.088 |
1.125
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0.617 | 0.665 | 0.398 | 0.446 | |
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7/8
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9 | 14 | 1.465 | 1.516 | 1.269 |
1.313
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0.724 | 0.776 | 0.458 | 0.510 | |
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1
|
8 | 12 |
1.675
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1.732 | 1.450 |
1.50
|
0.831 | 0.887 | 0.519 | 0.575 | |
| 1-1/8 | 7 | 12 | 1.859 | 1.949 | 1.631 | 1.625 | 0.939 | 0.999 | 0.579 | 0.639 | |
| 1-1/4 | 7 | 12 | 2.066 | 2.165 | 1.812 | 1.875 | 1.030 | 1.094 | 0.687 | 0.751 | |
| 1-3/8 | 6 | 12 | 2.273 | 2.382 | 1.994 | 2 | 1.138 | 1.206 | 0.747 | 0.815 | |
| 1-1/2 | 6 | 12 | 2.480 | 2.598 | 2.175 | 2.25 | 1.245 | 1.317 | 0.808 | 0.880 | |
| 1-5/8 | - | - | 2.686 | 2.805 | 2.35 | 2.438 | 1.364 | 1.416 | 0.868 | 0.944 | |
| 1-3/4 | 5 | - | 2.893 | 3.031 | 2.538 | 2.625 | 1.460 | 1.540 | 0.929 | 1.009 | |
| 1-7/8 | - | - | 3.099 | 3.247 | 2.722 | 2.813 | 1.567 | 1.651 | 0.989 | 1.073 | |
| 2 | 4.5 | - | 3.306 | 3.464 | 2.900 | 3 | 1.675 | 1.763 | 1.050 | 1.138 | |
| 2-1/4 | 4.5 | - | 3.719 | 3.897 | 3.263 | 3.375 | 1.890 | 1.986 | 1.155 | 1.267 | |
| 2-1/2 | 4 | - | 4.133 | 4.330 | 3.625 | 3.75 | 2.105 | 2.209 | 1.401 | 1.427 | |
| 2-3/4 | 4 | - | 4.546 | 4.763 | 3.988 | 4.125 | 2.319 | 2.431 | 1.522 | 1.556 | |
| 3 | 4 | - | 4.959 | 5.196 | 4.350 | 4.5 | 2.534 | 2.654 | 1.643 | 1.685 | |
| 3-1/4 | 4 | - | 5.373 | 5.629 | 4.713 | 4.875 | 2.749 | 2.877 | 1.748 | 1.814 | |
| 3-1/2 | 4 | - | 5.786 | 6.062 | 5.075 | 5.25 | 2.964 | 3.100 | 1.870 | 1.943 | |
| 3-374 | 4 | - | 6.199 | 6.495 | 5.438 | 5.625 | 3.178 | 3.322 | 1.990 | 2.072 | |
| 4 | 4 | - | 6.612 | 6.928 | 5.800 | 6 | 3.393 | 3.545 | 2.112 | 2.201 | |