常用螺纹尺寸及公差汇总表之欧阳学创编

公制螺纹

时间：创2021.03.03 作：欧阳学 M10*1 M12*1 M14*1 M12*1.25 M14*1.25 M12*1.5 M14*1.5 M16*1.5 M18*1.5 M20*1.5 M22*1.5 M24*1.5 M26*1.5 M27*1.5 M30*1.5 M33*1.5 M36*1.5 M39*1.5 M42*1.5 M27*2 M30*2 M33*2 大径 基本直径 中径 小径 6H 中径公差 内螺纹公差等级 7H 小径公中径公差 0,差 外螺纹公差 小径公差 6g 中径公差 小径公差 10 12 14 12 14 12 14 16 18 20 22 14 26 27 30 33 36 39 42 27 30 33 9.35 0,+0.150 0,+0.236 0,+0.190 0,+0.300 -0.026,-0.138 11.35 10.917 0,+0.160 0,+0.236 0,+0.200 0,+0.300 -0.026,-0.144 13.35 122.917 0,+0.160 0,+0.236 0,+0.200 0,+0.300 -0.026,-0.144 11.188 10.7 0,+0.180 0,+0.265 0,+0.224 0,+0.335 -0.028,-0.160 13.188 12.7 0,+0.180 0,+0.265 0,+0.224 0,+0.335 -0.028,-0.160 11.026 10.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 13.026 12.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 15.026 14.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 17.026 16.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 19.026 18.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 21.026 20.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 23.026 22.376 0,+0.200 0,+0.300 0,+0.250 0,+0.375 -0.032,-0.182 25.026 24.376 0,+0.200 0,+0.300 0,+0.250 0,+0.375 -0.032,-0.182 26.026 25.376 0,+0.200 0,+0.300 0,+0.250 0,+0.375 -0.032,-0.182 29.026 28.376 0,+0.200 0,+0.300 0,+0.250 0,+0.375 -0.032,-0.182 32.026 31.376 0,+0.200 0,+0.300 0,+0.250 0,+0.375 -0.032,-0.182 35.026 34.376 0,+0.200 0,+0.300 0,+0.250 0,+0.375 -0.032,-0.182 38.026 37.376 0,+0.200 0,+0.300 0,+0.250 0,+0.375 -0.032,-0.182 41.026 40.376 0,+0.200 0,+0.300 0,+0.250 0,+0.375 -0.032,-0.182 25.701 24.835 0,+0.224 0,+0.375 0,+0.280 0,+0.475 -0.038,-0.208 28.701 27.835 0,+0.224 0,+0.375 0,+0.280 0,+0.475 -0.038,-0.208 31.701 30.835 0,+0.224 0,+0.375 0,+0.280 0,+0.475 -0.038,-8.917 -0.026,0.206 -0.026,0.206 -0.026,0.206 -0.028,-0.240 -0.028,-0.240 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.032,-0.268 -0.038,-0.318 -0.038,-0.318 -0.038,-欧阳学创编

欧阳学创编

0.208 -0.038,-0.208 -0.038,-0.208 -0.038,-0.208 -0.038,-0.208 -0.038,-0.218 -0.038,-0.218 -0.038,-0.218 -0.038,-0.218 0.318 -0.038,-0.318 -0.038,-0.318 -0.038,-0.318 -0.038,-0.318 -0.038,-0.318 -0.038,-0.318 -0.038,-0.318 -0.038,-0.318 M36*2 M39*2 M42*2 M45*2 M52*2 M60*2 M*2 M72*2 36 39 42 45 52 60 72 34.701 33.835 37.701 36.835 40.701 39.835 43.701 42.835 50.701 49.835 58.701 57.835 62.701 61.835 70.701 69.835 0,+0.224 0,+0.375 0,+0.280 0,+0.475 0,+0.224 0,+0.375 0,+0.280 0,+0.475 0,+0.224 0,+0.375 0,+0.280 0,+0.475 0,+0.224 0,+0.375 0,+0.280 0,+0.475 0,+0.236 0,+0.375 0,+0.300 0,+0.475 0,+0.236 0,+0.375 0,+0.300 0,+0.475 0,+0.236 0,+0.375 0,+0.300 0,+0.475 0,+0.236 0,+0.375 0,+0.300 0,+0.475 美制NPSM螺纹（美国标准ANSI B1.20.1机械连接用直

管螺纹60度）

标号 螺纹代号 外螺纹（2A级） 大径 中径 最大值 最小值 最大值 最小值 10.084 9.906 9.462 9.370 13.360 13.132 12.4 12.342 16.815 16.586 15.0 15.776 20.904 20.650 19.733 19.604 26.2 26.010 25.077 24.943 32.842 32.537 31.417 31.270 41.605 41.300 40.173 40.020 47.676 47.371 46.241 46.086 59.715 59.411 58.278 58.120 72.161 71.780 70.104 69.916 88.062 87.681 86.009 85.816 内螺纹（2B级） 小径 中径 最小值 最大值 最小值 最大值 9.093 9.246 9.4 9.609 11.887 12.217 12.487 12.634 15.316 15.5 15.926 16.076 18.974 19.279 19.771 19.942 24.333 24.638 25.118 25.293 30.505 30.759 31.460 31.653 39.268 39.497 40.218 40.416 45.339 45.568 46.286 46.487 57.379 57.607 58.326 58.532 68.783 69.266 70.160 70.409 84.684 85.166 86.068 86.319 02 04 06 08 12 16 20 24 32 40 48 1/8-27NPSM 1/4-18NPSM 3/8-18NPSM 1/2-14NPSM 3/4-14NPSM 1-11.5NPSM 1.1/4-11.5NPSM 1.1/2-11.5NPSM 2-11.5NPSM 2.1/2-8NPSM 3-8NPSM NPT布锥管螺纹

标号 02 04 06 08 12 16 20 24 32 40 48 螺纹代号 Z1/8*27 Z1/4*18 Z3/8*18 Z1/2*14 Z3/4*14 Z1*11.5 Z1.1/4*1.5 Z1.1/2*11.5 Z2*11.5 Z2.1/2*8 Z3*8 大径 10.242 13.616 17.055 21.223 26.568 33.228 41.985 48.0 60.092 72.699 88.608 基面上的直径 中径 9.4 12.487 15.926 19.772 25.117 31.461 40.218 46.287 58.325 70.159 86.068 小径 8.736 11.385 14.797 18.321 23.666 29.694 38.451 44.520 56.558 67.619 83.528 螺纹长度 管端至基面长 有效长度 4.102 6.703 5.786 10.206 6.096 10.358 8.128 13.556 8.611 13.861 10.160 17.343 10.668 17.953 10.668 18.377 11.074 19.215 17.323 28.2 19.456 30.480 端面大径 9.986 13.2 16.674 20.715 26.030 32.593 41.318 47.387 59.400 71.616 87.392 55度英锥管螺纹

欧阳学创编

欧阳学创编

标号 螺纹代号 大径 基本直径 中径 内螺纹 中径公差 小径公差 A 02 04 06 08 10 12 16 20 24 32 40 48 G1/8*28 G1/4*19 G3/8*19 G1/2*14 G5/8*14 G3/4*14 G1*11 G1.1/4*11 G1.1/2*11 G2*11 G2.1/2*11 G3*11 9.728 13.157 16.662 20.955 22.911 26.441 33.249 41.910 47.803 59.614 75.184 87.884 9.147 12.301 15.806 19.793 21.749 25.279 31.770 40.431 46.324 58.135 73.705 86.405 8.566 11.445 14.950 18.631 20.587 24.117 30.291 38.952 44.845 56.656 72.226 84.926 0.170，0 0.125，0 0.125，0 0.142，0 0.142，0 0.142，0 0.180，0 0.180，0 0.180，0 0.180，0 0.217，0 0.217，0 0.282，0 0.445，0 0.445，0 0.1，0 0.1，0 0.1，0 0.0，0 0.0，0 0.0，0 0.0，0 0.0，0 0.0，0 中径公差 0，-0.170 0.-0.125 0，-0.125 0，-0.142 0，-0.142 0，-0.142 0，-0.180 0，-0.180 0，-0.180 0，-0.180 0，-0.217 0，-0.217 大径公差 0，-0.214 0，-0.250 0，-0.250 0，-0.284 0，-0.284 0，-0.284 0，-0.360 0，-0.360 0，-0.360 0，-0.360 0，-0.434 0，-0.434 中径公差 0，-0.214 0，-0.250 0，-0.250 0，-0.284 0，-0.284 0，-0.284 0，-0.360 0，-0.360 0，-0.360 0，-0.360 0，-0.434 0，-0.434 外螺纹 公差等级 B 大径公差 0，-0.214 0，-0.250 0，-0.250 0，-0.284 0，-0.284 0，-0.284 0，-0.360 0，-0.360 0，-0.360 0，-0.360 0，-0.434 0，-0.434 小径 55度英锥管螺纹

标号 螺纹代号 基面上的直径 大径 中径 小径 基准长度 基本 最大 最小 有效螺纹长度 基本 最大 最小 圆锥内螺纹基面轴向位移的极限偏差 1.1 1.7 1.7 2.3 2.3 2.9 2.9 2.9 2.9 3.5 3.5 端面大径 02 04 06 08 12 16 20 24 32 40 48 R1/8*28 R1/4*19 R3/8*19 R1/2*14 R3/4*14 R1*11 R1.1/4*11 R1.1/2*11 R2*11 R2.1/2*11 R3*11 9.728 13.157 16.662 20.955 26.441 33.249 41.910 47.803 59.614 75.184 87.884 9.147 12.301 15.806 19.793 25.279 31.770 40.431 46.324 58.135 73.705 86.405 8.566 11.445 14.950 18.631 24.117 30.291 38.952 44.845 56.656 72.226 84.926 4 6 6.4 8.2 9.5 10.4 12.7 12.7 15.9 17.5 20.6 4.9 7.3 7.7 10 11.3 12.7 15 15 18.2 21 24.1 3.1 4.7 5.1 6.4 7.7 8.1 10.4 10.4 13.6 14 17.1 6.5 9.7 10.1 13.2 14.5 16.8 19.1 19.1 23.4 26.7 29.8 7.4 11 11.4 15 16.3 19.1 21.4 21.4 25.7 30.2 33.3 5.6 8.4 8.8 11.4 12.7 14.5 16.8 16.8 21.1 23.2 26.3 9.478 12.782 16.262 20.443 25.847 32.599 41.116 47.009 58.620 74.090 86.597 美制螺纹

标号 螺纹代号 外螺纹 公差等级2A 大径 中径 小径 最大 最大 最小 最大 最小 JIC螺纹 7.910 7.727 7.221 7.127 6.650 9.497 9.314 8.809 8.712 8.237 11.079 10.874 10.2 10.147 9.568 12.667 12.461 11.841 11.732 11.156 14.252 14.031 13.335 13.221 12.573 19.012 18.773 17.981 17.8 17.12 22.184 21.923 21.006 20.869 20.025 26.944 26.655 25.57 25.425 24.425 33.294 33.005 31.92 31.773 30.775 41.229 40.94 39.855 39.705 38.71 内螺纹 公差等级2B 小径 中径 最小 最大 最小 最大 6.782 8.382 9.728 11.328 12.751 17.323 20.269 24.6 31.039 38.9 7.036 8.636 10.033 11.608 13.081 17.678 20.676 25.146 31.496 39.446 7.249 8.837 10.287 11.875 13.371 18.019 21.046 25.613 31.963 39.901 7.371 8.961 10.424 12.017 13.52 18.184 21.224 25.801 32.1 40.094 大径 最小 02 03 04 05 06 08 10 12 16 20 5/16×24UNF 3/8*24UNF 7/16*20UNF 1/2*20UNF 9/16*18UNF 3/4*16UNF 7/8*14UNF 1.1/16*12UNF 1.5/16*12UNF 1.5/8*12UNF 7.938 9.525 11.113 12.7 14.288 19.05 22.225 26.988 33.338 41.275 欧阳学创编

欧阳学创编

24 32 40 18HK 04 06 08 10 12 16 20 24 06 12 1.7/8*12UNF 2.1/2*12UNF 3812UNF 1.1/2*10UNF 9/16*18UNF 11/16*16UNF 13/16*16UNF 1*14UNSF 1.3/16*12UN 1.7/16*12UN 1.11/16*12UN 2*12UN 5/8×18UNF 1.1/16*14UNF 9/16*16UN 7/8*12UN 2.1/4*12UN 47.579 63.452 76.157 38.052 14.252 17.427 20.599 25.357 30.119 36.467 42.817 50.7 15.839 26.947 14.252 22.182 57.104 47.29 63.162 75.862 37.724 14.031 17.188 20.361 25.095 29.83 36.177 42.527 50.465 15.618 26.683 14.013 21.2 56.815 46.205 62.078 74.778 36.401 13.335 16.396 19.568 24.178 28.7 35.093 41.443 49.38 14.923 25.743 13.221 20.808 55.73 46.053 45.06 61.92 60.932 74.618 73.632 36.238 35.029 ORFS螺纹 13.221 12.573 16.274 15.535 19.444 18.707 24.036 23.195 28.598 27.6 34.943 33.947 41.29 40.297 49.25 48.235 SAE螺纹 14.803 14.161 25.608 24.74 其他美制螺纹 13.101 12.36 20.668 19.662 55.575 .585 45.339 61.214 73.914 35.357 12.751 15.748 18.923 23.444 27.8 34.214 40.5 48.514 14.351 24.968 12.573 19.939 .8 45.796 61.671 74.371 35.0 13.081 16.104 19.279 23.825 28.321 34.671 41.021 48.971 14.681 25.375 12.929 20.396 55.321 46.251 62.126 74.826 36.449 13.371 16.431 19.606 24.221 28.788 35.138 41.488 49.426 14.958 25.783 13.256 20.851 55.776 46.449 62.332 75.034 36.660 13.52 16.5 19.766 24.407 28.979 35.331 41.686 49.627 15.11 25.961 13.411 21.034 55.976 47.625 63.5 76.2 38.100 14.288 17.463 20.638 25.4 30.163 36.513 42.863 50.8 15.875 26.987 14.288 22.225 57.15 可拆式芯子与套筒连接螺纹

软管编号 螺纹代号 大径 最大 最小 7.120 6.967 9.197 9.032 10.685 10.520 14.257 14.074 17.432 17.249 20.599 20.399 26.952 26.731 33.299 33.078 39.9 39.428 50.762 50.1 11.079 10.874 14.252 14.031 15.839 15.618 19.014 18.793 22.1 21.968 30.124 29.870 39.9 39.428 外螺纹 中径 最大 最小 6.604 6.523 8.608 8.516 10.095 10.004 13.569 13.470 16.744 16.2 19.779 19.667 26.035 25.916 32.382 32.258 38.732 38.605 49.845 49.715 10.2 10.147 13.335 13.221 14.923 14.803 18.098 17.981 21.273 21.156 29.093 28.9 38.732 38.605 内螺纹 公差等级2B 小径 中径 最小 最大 最小 最大 6.294 6.472 6.629 6.736 8.234 8.463 8.636 8.753 9.735 9.938 10.123 10.240 13.132 13.386 13.599 13.729 16.307 16.561 16.774 16.906 19.253 19.558 19.812 19.982 25.451 25.781 26.071 26.228 31.801 32.131 32.421 32.581 38.151 38.481 38.771 38.936 49.276 49.606 49.883 50.053 9.728 10.033 10.287 10.424 12.751 13.081 13.371 13.520 14.351 14.681 14.958 15.110 17.526 17.856 18.133 18.285 20.701 21.031 21.308 21.460 28.448 28.804 29.131 29.299 38.151 38.481 38.771 38.936 小径 6.175 8.115 9.603 12.997 16.172 19.347 25.273 31.620 37.970 49.083 9.568 12.573 14.161 17.336 20.511 28.232 37.970 大径 R5-04 R5-05 R5-06 R5-08 R5-10 R5-12 R5-16 R5-20 R5-24 R5-32 2A-04 2A-06 2A-08 2A-10 2A-12 2A-16 2A-20 9/32*32 46/127*28 107/2*28 9/16*24 11/16*24 13/16*20 1.1/16*18 1.5/16*18 1.9/16*18 2*18 7/16*20 9/16*18 5/8*18 3/4*18 7/8*18 1.3/16*16 1.9/16*18 7.145 9.225 10.713 14.288 17.463 20.638 26.988 33.338 39.688 50.800 11.113 14.288 15.875 19.050 22.225 30.163 39.688 新西兰B09内螺纹

标号 你螺纹代号 大径MIN 中径MIN 中径MAX 小径MIN 小径MAX B-09 0.860in*14 21.844 20.683 20.841 19.522 欧阳学创编

欧阳学创编

NPTF+密封管螺纹

标号 外螺纹小端中径 1/8-27NPTF 9.233 1/4-18NPTF 12.126 3/8-18NPTF 15.5 1/2-14NPTF 19.2 3/4-14NPTF 24.579 1-11.5NPTF 30.826 1.1/4-11.5NPTF 39.551 1.1/2-11.5NPTF 45.621 2-11.5NPTF 57.633 2.1/2-8NPTF 69.076 3-8NPTF 84.852 螺纹代号 外螺纹大端中径 9.652 12.7 16.193 20.111 25.445 31.910 40.673 46.769 58.834 70.882 86.757 外螺纹小端大径最小 9.871 13.128 16.7 20.616 25.931 32.474 41.199 47.269 59.281 71.476 87.252 外螺纹小端大径最大 9.960 13.215 16.634 20.703 26.018 32.562 41.287 47.357 59.369 71.559 87.335 外螺纹全牙长度 6.703 10.206 10.358 13.556 13.861 17.343 17.953 18.377 19.215 28.3 30.480 内螺纹大端中径 9.4 12.487 15.926 19.772 25.117 31.461 40.218 46.287 58.325 70.159 86.068 内螺纹小端中径 9.058 11.862 15.281 18.926 24.239 30.411 39.136 45.207 57.219 68.481 84.257 内螺纹大端小径最小 8.763 11.398 14.837 18.333 23.678 29.725 38.482 44.551 56.5 67.676 83.585 内螺纹大端小径最大 8.851 11.486 14.924 18.420 23.768 29.813 38.570 44.0 56.677 67.759 83.668 2 4 6 8 12 16 20 24 32 40 48 内螺纹全牙长度 6.924 10.020 10.330 13.571 14.0 16.787 17.295 17.295 17.701 26.848 28.981 备注：1.表中外螺纹的完整螺纹长度包括不超过一个螺距长度的倒角

2.表中内螺纹的完整螺纹长度不包括在中径线和倒角交线外的锥口孔。即完整螺纹长度的等于完整内螺纹加一个螺距。

时间：2021.03.03 创作：欧阳学 欧阳学创编