|
2级标准系列统一螺纹的极限尺寸 |
|||||||||||
|
公称直径 -牙数 |
系列 代号 |
|
2B 内螺纹 |
||||||||
|
大径 d |
中径 d2 |
UNR 小径d3 (参考) |
小径 D1 |
中径 D2 |
大径 D |
||||||
|
max |
min |
max |
min |
max |
min |
max |
min |
max |
min |
||
|
31/2-16 |
UN |
3.498 3 |
3.488 9 |
3.457 7 |
3.451 9 |
3.423 9 |
3.432 |
3.446 |
3.459 4 |
3.466 9 |
3.500 0 |
|
35/8-6 |
UN |
3.622 1 |
3.603 9 |
3.513 8 |
3.504 1 |
3.423 6 |
3.445 |
3.475 |
3.516 7 |
3.529 3 |
3.625 0 |
|
35/8-8 |
UN |
3.622 3 |
3.607 3 |
3.541 1 |
3.532 2 |
3.473 5 |
3.490 |
3.515 |
3.543 8 |
3.555 4 |
3.625 0 |
|
35/8-12 |
UN |
3.623 1 |
3.611 7 |
3.569 0 |
3.562 5 |
3.523 9 |
3.535 |
3.553 |
3.570 9 |
3.579 3 |
3.625 0 |
|
35/8-16 |
UN |
3.623 3 |
3.613 9 |
3.582 7 |
3.576 9 |
3.548 9 |
3.557 |
3.571 |
3.584 4 |
3.591 9 |
3.625 0 |
|
33/4-4 |
UNC |
3.746 6 |
3.722 8 |
3.584 2 |
3.573 0 |
3.448 9 |
3.479 |
3.517 |
3.587 6 |
3.602 1 |
3.750 0 |
|
33/4-6 |
UN |
3.747 1 |
3.728 9 |
3.638 8 |
3.629 0 |
3.548 6 |
3.570 |
3.600 |
3.641 7 |
3.654 4 |
3.750 0 |
|
33/4-8 |
UN |
3.747 3 |
3.732 3 |
3.666 1 |
3.657 1 |
3.598 5 |
3.615 |
3.640 |
3.668 8 |
3.680 5 |
3.750 0 |
|
33/4-12 |
UN |
3.748 1 |
3.736 7 |
3.694 0 |
3.687 5 |
3.648 9 |
3.660 |
3.678 |
3.695 9 |
3.704 3 |
3.750 0 |
|
33/4-16 |
UN |
3.748 3 |
3.738 9 |
3.707 7 |
3.701 9 |
3.673 9 |
3.682 |
3.969 |
3.709 4 |
3.717 0 |
3.750 0 |
|
37/8-6 |
UN |
3.872 0 |
3.853 8 |
3.763 7 |
3.753 8 |
3.673 5 |
3.695 |
3.725 |
3.766 7 |
3.779 5 |
3.875 0 |
|
37/8-8 |
UN |
3.872 3 |
3.857 3 |
3.791 1 |
3.782 0 |
3.723 5 |
3.740 |
3.765 |
3.793 8 |
3.805 6 |
3.875 0 |
|
37/8-12 |
UN |
3.873 0 |
3.861 6 |
3.818 9 |
3.812 4 |
3.773 8 |
3.785 |
3.803 |
3.820 9 |
3.829 4 |
3.875 0 |
|
37/8-16 |
UN |
3.873 2 |
3.863 8 |
3.832 6 |
3.826 8 |
3.798 8 |
3.807 |
3.821 |
3.834 4 |
3.842 0 |
3.875 0 |
|
4-4 |
UNC |
3.996 6 |
3.972 8 |
3.834 2 |
3.822 9 |
3.698 9 |
3.729 |
3.767 |
3.837 6 |
3.852 3 |
4.000 0 |
|
4-6 |
UN |
3.997 0 |
3.978 8 |
3.888 7 |
3.878 8 |
3.798 5 |
3.820 |
3.850 |
3.891 7 |
3.904 6 |
4.000 0 |
|
4-8 |
UN |
3.997 3 |
3.982 3 |
3.916 1 |
3.907 0 |
3.848 5 |
3.865 |
3.890 |
3.918 8 |
3.930 7 |
4.000 0 |
|
4-12 |
UN |
3.998 0 |
3.986 6 |
3.943 9 |
3.937 4 |
3.898 8 |
3.910 |
3.928 |
3.945 9 |
3.954 4 |
4.000 0 |
|
4-16 |
UN |
3.998 2 |
3.988 8 |
3.957 6 |
3.951 7 |
3.923 8 |
3.932 |
3.946 |
3.959 4 |
3.967 0 |
4.000 0 |
|
41/8-6 |
UN |
4.122 0 |
4.103 8 |
4.013 7 |
4.003 7 |
3.923 5 |
3.945 |
3.975 |
4.016 7 |
4.029 7 |
4.125 0 |
|
41/8-8 |
UN |
4.122 2 |
4.107 2 |
4.041 0 |
4.031 8 |
3.973 4 |
3.990 |
4.015 |
4.043 8 |
4.058 8 |
4.125 0 |
|
41/8-12 |
UN |
4.123 0 |
4.111 6 |
4.068 9 |
4.062 3 |
4.023 8 |
4.035 |
4.053 |
4.070 9 |
4.079 4 |
4.125 0 |
|
41/8-16 |
UN |
4.123 2 |
4.113 8 |
4.082 6 |
4.076 7 |
4.048 8 |
4.057 |
4.071 |
4.084 4 |
4.092 1 |
4.125 0 |
|
41/4-4 |
UN |
4.246 6 |
4.222 8 |
4.084 2 |
4.072 7 |
3.948 9 |
3.979 |
4.017 |
4.087 6 |
4.102 5 |
4.250 0 |
|
41/4-6 |
UN |
4.247 0 |
4.228 8 |
4.138 7 |
4.128 6 |
4.048 5 |
4.070 |
4.100 |
4.141 7 |
4.154 8 |
4.250 0 |
|
41/4-8 |
UN |
4.247 2 |
4.232 2 |
4.166 0 |
4.156 7 |
4.098 4 |
4.115 |
4.140 |
4.168 8 |
4.180 9 |
4.250 0 |
|
41/4-12 |
UN |
4.248 0 |
4.236 6 |
4.193 9 |
4.187 3 |
4.148 8 |
4.160 |
4.178 |
4.195 9 |
4.204 5 |
4.250 0 |
|
41/4-16 |
UN |
4.248 2 |
4.238 8 |
4.207 6 |
4.201 7 |
4.173 8 |
4.182 |
4.196 |
4.209 4 |
4.217 1 |
4.250 0 |
|
43/8-6 |
UN |
4.372 0 |
4.353 8 |
4.263 7 |
4.253 6 |
4.173 5 |
4.195 |
4.225 |
4.266 7 |
4.279 9 |
4.375 0 |
|
43/8-8 |
UN |
4.372 2 |
4.357 2 |
4.291 0 |
4.281 7 |
4.223 4 |
4.240 |
4.265 |
4.293 8 |
4.305 9 |
4.375 0 |
|
43/8-12 |
UN |
4.373 0 |
4.361 6 |
4.318 9 |
4.312 3 |
4.273 8 |
4.285 |
4.303 |
4.320 9 |
4.329 5 |
4.375 0 |
|
43/8-16 |
UN |
4.373 2 |
4.363 8 |
4.332 6 |
4.326 7 |
4.298 8 |
4.307 |
4.321 |
4.334 4 |
4.342 1 |
4.375 0 |
|
41/2-4 |
UN |
4.496 5 |
4.472 7 |
4.334 1 |
4.322 5 |
4.198 8 |
4.229 |
4.267 |
4.337 6 |
4.352 7 |
4.500 0 |
|
41/2-6 |
UN |
4.496 9 |
4.478 7 |
4.388 6 |
4.378 4 |
4.298 4 |
4.320 |
4.350 |
4.391 7 |
4.405 0 |
4.500 0 |
|
41/2-8 |
UN |
4.497 2 |
4.482 2 |
4.416 0 |
4.406 6 |
4.348 4 |
4.365 |
4.390 |
4.418 8 |
4.431 0 |
4.500 0 |
|
41/2-12 |
UN |
4.498 0 |
4.486 6 |
4.443 9 |
4.437 3 |
4.398 8 |
4.410 |
4.428 |
4.445 9 |
4.454 5 |
4.500 0 |
|
41/2-16 |
UN |
4.498 2 |
4.488 8 |
4.457 6 |
4.451 6 |
4.423 8 |
4.432 |
4.446 |
4.459 4 |
4.467 2 |
4.500 0 |
|
45/8-6 |
UN |
4.621 9 |
4.603 7 |
4.513 6 |
4.503 3 |
4.423 4 |
4.445 |
4.475 |
4.516 7 |
4.530 0 |
4.625 0 |
|
45/8-8 |
UN |
4.622 2 |
4.607 2 |
4.541 0 |
4.531 5 |
4.473 4 |
4.490 |
4.515 |
4.543 8 |
4.556 1 |
4.625 0 |
|
45/8-12 |
UN |
4.623 0 |
4.611 6 |
4.568 9 |
4.562 2 |
4.523 8 |
4.535 |
4.553 |
4.570 9 |
4.579 6 |
4.625 0 |
|
45/8-16 |
UN |
4.623 2 |
4.613 8 |
4.582 6 |
4.576 6 |
4.548 8 |
4.557 |
4.571 |
4.584 4 |
4.592 2 |
4.625 0 |
|
43/4-4 |
UN |
4.746 5 |
4.722 7 |
4.584 1 |
4.572 4 |
4.448 8 |
4.479 |
4.517 |
4.587 6 |
4.602 9 |
4.750 0 |
|
43/4-6 |
UN |
4.746 9 |
4.728 7 |
4.638 6 |
4.628 3 |
4.548 4 |
4.570 |
4.600 |
4.641 7 |
4.655 1 |
4.750 0 |
|
43/4-8 |
UN |
4.747 1 |
4.732 1 |
4.665 9 |
4.656 4 |
4.598 3 |
4.615 |
4.640 |
4.668 8 |
4.681 2 |
4.750 0 |
|
43/4-12 |
UN |
4.748 0 |
4.736 6 |
4.693 9 |
4.687 2 |
4.648 8 |
4.660 |
4.678 |
4.695 9 |
4.704 6 |
4.750 0 |
|
43/4-16 |
UN |
4.748 2 |
7.738 8 |
4.707 6 |
4.701 6 |
4.673 8 |
4.682 |
4.696 |
4.709 4 |
4.7172 |
4.750 0 |
|
47/8-6 |
UN |
4.871 9 |
4.853 7 |
4.763 6 |
4.753 2 |
4.673 4 |
4.695 |
4.725 |
4.766 7 |
4.780 2 |
4.875 0 |
|
47/8-8 |
UN |
4.872 1 |
4.857 1 |
4.790 9 |
4.781 3 |
4.723 3 |
4.740 |
4.765 |
4.793 8 |
4.806 3 |
4.875 0 |
|
47/8-12 |
UN |
4.873 0 |
4.861 6 |
4.818 9 |
4.812 2 |
4.773 8 |
4.785 |
4.803 |
4.820 9 |
4.829 6 |
4.875 0 |
|
47/8-16 |
UN |
4.873 2 |
4.863 8 |
4.832 6 |
4.826 6 |
4.798 8 |
4.807 |
4.821 |
4.834 4 |
4.842 2 |
4.875 0 |
|
5-4 |
UN |
4.996 4 |
4.972 6 |
4.834 0 |
4.822 1 |
4.698 7 |
4.729 |
4.767 |
4.837 6 |
4.853 0 |
5.000 0 |
|
5-6 |
UN |
4.996 9 |
4.978 7 |
4.888 6 |
4.878 1 |
4.798 4 |
4.820 |
4.850 |
4.891 7 |
4.905 3 |
5.000 0 |
|
5-8 |
UN |
4.997 1 |
4.982 1 |
4.915 9 |
4.906 2 |
4.848 3 |
4.865 |
4.890 |
4.918 8 |
4.931 4 |
5.000 0 |
|
5-12 |
UN |
4.998 0 |
4.986 6 |
4.943 9 |
4.937 2 |
4.898 8 |
4.910 |
4.928 |
4.945 9 |
4.954 6 |
5.000 0 |
|
5-16 |
UN |
4.998 2 |
4.988 8 |
4.957 6 |
4.951 5 |
4.923 8 |
4.932 |
4.946 |
4.959 4 |
4.967 3 |
5.000 0 |
|
51/8-6 |
UN |
5.121 8 |
5.103 6 |
5.013 5 |
5.003 0 |
4.923 3 |
4.945 |
4.975 |
5.016 7 |
5.030 4 |
5.125 0 |
|
51/8-8 |
UN |
5.122 1 |
5.107 1 |
5.040 9 |
5.031 2 |
4.973 3 |
4.990 |
5.015 |
5.043 8 |
5.056 5 |
5.125 0 |
|
51/8-12 |
UN |
5.123 0 |
5.111 6 |
5.068 9 |
5.062 2 |
5.023 8 |
5.035 |
5.053 |
5.070 9 |
5.079 7 |
5.125 0 |
|
51/8-16 |
UN |
5.123 2 |
5.113 8 |
5.082 6 |
5.076 5 |
5.048 8 |
5.057 |
5.071 |
5.084 4 |
5.0923 |
5.125 0 |
|
51/4-4 |
UN |
5.246 4 |
5.222 6 |
5.084 0 |
5.072 0 |
4.948 7 |
4.979 |
5.017 |
5.087 6 |
5.103 2 |
5.250 0 |
|
51/4-6 |
UN |
5.246 8 |
5.228 6 |
5.138 5 |
5.127 9 |
5.048 3 |
5.070 |
5.100 |
5.141 7 |
5.155 5 |
5.250 0 |
|
51/4-8 |
UN |
5.247 1 |
5.232 1 |
5.165 9 |
5.156 1 |
5.098 3 |
5.115 |
5.140 |
5.168 8 |
5.181 5 |
5.250 0 |
|
51/4-12 |
UN |
5.248 0 |
5.236 6 |
5.193 9 |
5.187 1 |
5.148 8 |
5.160 |
5.178 |
5.195 9 |
5.204 7 |
5.250 0 |
|
51/4-16 |
UN |
5.248 2 |
5.238 8 |
5.207 6 |
5.204 5 |
5.173 8 |
5.182 |
5.196 |
5.209 4 |
5.217 3 |
5.250 0 |
|
53/8-6 |
UN |
5.371 8 |
5.353 6 |
5.263 5 |
5.252 9 |
5.173 3 |
5.195 |
5.225 |
5.266 7 |
5.280 5 |
5.375 0 |
|
53/8-8 |
UN |
5.372 0 |
5.357 0 |
5.290 8 |
5.280 9 |
5.223 2 |
5.240 |
5.265 |
5.293 8 |
5.306 6 |
5.375 0 |
|
53/8-12 |
UN |
5.373 0 |
5.361 6 |
5.318 9 |
5.312 1 |
5.273 8 |
5.285 |
5.303 |
5.320 9 |
5.3297 |
5.375 0 |
|
53/8-16 |
UN |
5.373 2 |
5.363 8 |
5.332 6 |
5.326 5 |
5.298 8 |
5.307 |
5.321 |
5.334 4 |
5.342 3 |
5.375 0 |
|
51/2-4 |
UN |
5.496 4 |
5.472 6 |
5.334 0 |
5.321 9 |
5.198 7 |
5.229 |
5.267 |
5.337 6 |
5.353 4 |
5.500 0 |
|
51/2-6 |
UN |
5.496 8 |
5.478 6 |
5.388 5 |
5.377 8 |
5.298 3 |
5.320 |
5.350 |
5.391 7 |
5.405 6 |
5.500 0 |
|
51/2-8 |
UN |
5.497 0 |
5.482 0 |
5.415 8 |
5.405 9 |
5.348 2 |
5.365 |
5.390 |
5.418 8 |
5.431 7 |
5.500 0 |
|
51/2-12 |
UN |
5.498 0 |
5.486 6 |
5.443 9 |
5.437 1 |
5.398 8 |
5.410 |
5.428 |
5.445 9 |
5.454 8 |
5.500 0 |
|
51/2-16 |
UN |
5.498 2 |
5.488 8 |
5.457 6 |
5.451 5 |
5.423 8 |
5.432 |
5.446 |
5.459 4 |
5.467 4 |
5.500 0 |
|
55/8-6 |
UN |
5.621 8 |
5.603 6 |
5.513 5 |
5.502 7 |
5.423 3 |
5.445 |
5.475 |
5.516 7 |
5.530 7 |
5.625 0 |
|
55/8-8 |
UN |
5.622 0 |
5.607 0 |
5.540 8 |
5.530 8 |
5.473 2 |
5.490 |
5.515 |
5.543 8 |
5.556 8 |
5.625 0 |
|
55/8-12 |
UN |
5.623 0 |
5.611 6 |
5.5689 |
5.562 1 |
5.523 8 |
5.535 |
5.553 |
5.570 9 |
5.579 8 |
5.625 0 |
|
55/8-16 |
UN |
5.623 2 |
5.613 8 |
5.582 6 |
5.576 4 |
5.548 8 |
5.557 |
5.571 |
5.584 4 |
5.592 4 |
5.625 0 |
|
53/4-4 |
UN |
5.746 3 |
5.722 5 |
5.583 9 |
5.571 7 |
5.448 6 |
5.479 |
5.517 |
5.587 6 |
5.603 5 |
5.750 0 |
|
53/4-6 |
UN |
5.746 8 |
5.728 6 |
5.638 5 |
5.627 7 |
5.548 3 |
5.570 |
5.600 |
5.641 7 |
5.655 8 |
5.750 0 |
|
53/4-8 |
UN |
5.747 0 |
5.732 0 |
5.665 8 |
5.655 8 |
5.598 2 |
5.615 |
5.640 |
5.668 8 |
5.681 8 |
5.750 0 |
|
53/4-12 |
UN |
5.747 9 |
5.736 5 |
5.693 8 |
5.687 0 |
5.648 7 |
5.660 |
5.678 |
5.695 9 |
5.704 8 |
5.750 0 |
|
53/4-16 |
UN |
5.748 1 |
5.738 7 |
5.707 5 |
5.701 3 |
5.673 7 |
5.682 |
5.696 |
5.709 4 |
5.717 4 |
5.750 0 |
|
57/8-6 |
UN |
5.871 7 |
5.853 5 |
5.763 4 |
5.752 5 |
5.673 2 |
5.695 |
5.725 |
5.766 7 |
5.780 9 |
5.875 0 |
|
57/8-8 |
UN |
5.872 0 |
5.857 0 |
5.790 8 |
5.780 7 |
5.723 2 |
5.740 |
5.765 |
5.793 8 |
5.806 9 |
5.875 0 |
|
57/8-12 |
UN |
5.872 9 |
5.861 5 |
5.818 8 |
5.811 9 |
5.773 7 |
5.785 |
5.803 |
5.820 9 |
5.829 8 |
5.875 0 |
|
57/8-16 |
UN |
5.873 1 |
5.863 7 |
5.832 5 |
5.826 3 |
5.798 7 |
5.807 |
5.821 |
5.834 4 |
5.842 5 |
5.875 0 |
|
6-4 |
UN |
5.996 3 |
5.972 5 |
5.833 9 |
5.821 5 |
5.698 6 |
5.729 |
5.767 |
5.837 6 |
5.853 7 |
6.000 0 |
|
6-6 |
UN |
5.996 7 |
5.978 5 |
5.888 4 |
5.877 5 |
5.798 2 |
5.820 |
5.850 |
5.891 7 |
5.905 9 |
6.000 0 |
|
6-8 |
UN |
5.997 0 |
5.982 0 |
5.915 8 |
5.905 7 |
5.848 2 |
5.865 |
5.890 |
5.918 8 |
5.932 0 |
6.000 0 |
|
6-12 |
UN |
5.997 9 |
5.986 5 |
5.943 8 |
5.936 9 |
5.898 7 |
5.910 |
5.928 |
5.945 9 |
5.954 9 |
6.000 0 |
|
6-16 |
UN |
5998 1 |
5.988 7 |
5.957 5 |
5.951 3 |
5.923 7 |
5.932 |
5.946 |
5.959 4 |
5.987 5 |
6.000 0 |