螺纹基本尺寸对照表之欧阳学创编

英制管螺纹基本尺寸及公差（牙形角55º）BSPP

基本直径 内螺纹 A级 外螺纹 B级 时间：创2021.03.03 作：欧阳学 螺纹代号 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”X11 G3”X11 G3.1/2”X11 大径 中径 小径 中径公差 小径公差 中径公差 大径公差 中径公差 大径公差 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 8.566 +0.170 +0.282 0 12.301 11.445 +0.125 15.806 14.950 19.793 18.631 21.749 20.587 25.279 24.117 31.770 30.291 40.431 38.952 46.324 44.854 58.135 56.656 73.705 72.226 86.405 84.926 +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 +0.217 0 100.330 98.851 97.372 0 0 --0.107 0.214 --+0.445 0.125 0.250 0 0 +0.445 --0 0.125 0.250 0 0 +0.541 --0 0.142 0.284 0 0 +0.541 --0 0.142 0.284 0 0 +0.541 --0 0.142 0.284 0 0 +0.640 --0 0.180 0.360 0 0 +0.640 --0 0.180 0.360 0 0 +0.640 --0 0.180 0.360 0 0 +0.640 --0 0.180 0.360 0 0 +0.640 --0 0.217 0.434 0 0 +0.640 --0 0.217 0.434 0 0 +0.640 --0 0.217 0.434 0 -0.214 -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 0 -0.434 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 0 -0.434 欧阳学创编

欧阳学创编

英制锥管螺纹基本尺寸及公差（牙形角55º）BSPT

基面上的直径 螺纹代号 大径 中径 9.147 12.301 15.806 19.793 25.279 31.770 40.431 46.324 58.135 73.705 86.405 98.851 小径 8.566 11.445 14.950 18.631 24.117 30.291 38.952 44.845 56.656 72.226 84.926 97.372 基本 4.0 6.0 6.4 8.2 9.5 10.4 12.7 12.7 15.9 17.5 20.6 22.2 基准长度 最大 4.9 7.3 7.7 10.0 11.3 12.7 15.0 15.0 18.2 21.0 24.1 25.7 最小 3.1 4.7 5.1 6.4 7.7 8.1 10.4 10.4 13.6 14.0 17.1 18.7 有效螺纹长度 基本 6.5 9.7 10.1 13.2 14.5 16.8 19.1 19.1 23.4 26.7 29.8 31.4 最大 7.4 11.0 11.4 15.0 16.3 19.1 21.4 21.4 25.7 30.2 33.3 34.9 最小 5.6 8.4 8.8 11.4 12.7 14.5 16.8 16.8 21.1 23.2 26.3 27.9 圆锥内螺纹基面轴向位移偏差（±mm） 1.1 1.7 1.7 2.3 2.3 2.9 2.9 2.9 2.9 3.5 3.5 3.5 R1/8″×28 9.728 R1/4″×19 13.157 R3/8″×19 16.662 R1/2″×14 20.955 R3/4″×14 26.441 R1″×11 33.249 R1.1/4″×11 41.910 R1.1/2″×11 47.803 R2″×11 59.614 R2.1/2”X11 75.184 R3”X11 87.884 R3.1/2”X11 100.330 美制管螺纹基本尺寸及公差（牙形角60º）UN(F)

外螺纹 公差等级 螺纹代号 大径 2A 中径 小径 小径 内螺纹 公差等级 2B 中径 大径 7/16″×20UNF 1/2″×20UNF 9/16″×18UNF 3/4″×16UNF 7/8″×14UNF 1-1/16″×12UN 1-5/16″×12UN 1-5/8″×12UN 1-7/8″×12UN 2-1/2″×12UN 最大 最小 最大 最小 JIC螺纹 11.010.810.210.19.5679 74 54 47 8 12.612.411.811.711.167 61 41 32 56 14.214.013.313.212.552 31 35 21 73 19.018.717.917.817.112 73 81 54 2 22.121.921.020.820.084 23 06 69 25 最小 最大 最小 最大 9.728 11.328 12.751 17.323 20.269 24.689 31.039 38.989 45.339 61.214 10.033 11.608 13.081 17.678 20.676 25.146 31.496 39.446 45.796 61.671 10.287 11.875 13.371 18.019 21.046 25.613 31.963 39.901 46.251 62.126 10.424 12.017 13.52 18.184 21.224 25.801 32.154 40.094 46.449 62.332 11.113 12.7 14.288 19.05 22.225 26.988 33.338 41.275 47.625 63.5 26.944 33.294 41.229 47.579 63.452 26.655 33.005 40.94 47.29 63.162 25.57 31.92 39.885 46.205 62.078 25.425 31.773 24.425 30.775 39.738.705 1 46.045.053 6 61.960.92 32 ORFS螺纹 欧阳学创编

欧阳学创编

9/16″×18UNF 11/16″×16UN 13/16″×16UN 1″×14UNF 1-3/16″×12UN 1-7/16″×12UN 1-11/16″×12UN 2″×12UN 5/8″×18UNF 1-1/16″×14UN 14.252 17.427 20.599 25.357 30.119 36.467 42.817 50.754 15.839 26.947 14.031 17.188 20.361 25.095 29.83 36.177 42.527 50.465 15.618 26.683 13.335 16.396 19.568 24.178 28.745 35.093 41.443 49.38 14.923 25.743 13.221 16.274 19.444 24.036 28.598 34.943 41.29 12.573 15.535 18.707 23.195 27.6 33.947 40.297 12.751 15.748 18.923 23.444 27.864 34.214 40.564 48.514 14.351 24.968 13.081 16.104 19.279 23.825 28.321 34.671 41.021 48.971 14.681 25.375 13.371 16.431 19.606 24.221 28.788 35.138 41.488 49.426 14.958 25.783 13.52 16.589 19.766 24.407 28.979 35.331 41.686 49.627 15.11 25.961 14.288 17.463 20.638 25.4 30.163 36.513 42.863 50.8 15.875 26.987 49.248.225 35 SAE螺纹 14.814.103 61 25.608 24.74 其它美制螺纹 9/16″×16U14.214.013.213.112.312.512.913.213.414.2N 52 13 21 01 6 73 29 56 11 88 22.121.820.820.619.619.920.320.821.022.27/8″×12UN 82 92 08 68 62 39 96 51 34 25 2-57.156.855.755.554.554.855.355.755.957.11/4″×12UN 04 15 3 75 85 64 21 76 76 5 注：UNC粗牙螺纹系列，UNF细牙螺纹系列， UNEF超细牙螺纹系列， UN不变 螺距系列布锥管螺纹基本尺寸及公差(牙形角60º)NPT

基面上的直径 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″×11.5 Z1.1/2″×11.5 Z2″×11.5 大径 10.272 13.572 17.055 21.223 26.568 33.228 41.985 48.054 60.092 中径 9.519 12.443 15.926 19.772 25.117 31.461 40.218 46.287 58.325 小径 8.766 11.314 14.797 18.321 23.666 29.694 38.451 44.520 56.558 螺纹长度 管端至基面有效长度 长 7 4.572 9.5 5.080 10.5 6.096 13.5 8.028 14 8.611 17.5 10.160 18 10.688 18.5 10.688 19 11.074 公制螺纹基本尺寸及公差(牙形角60º)M

螺纹代号 基本直径 大中径 小径 内螺纹 公差等级 外螺纹 公差等级 欧阳学创编

欧阳学创编

径 中径公差 M10X1 10 9.350 8.917 6H 小径公差 中径公差 7H 小径公差 +0.150 +0.236 +0.190 +0.300 0 0 0 0 +0.160 +0.236 +0.200 +0.300 0 0 0 0 +0.160 +0.236 +0.200 +0.300 0 0 0 0 +0.180 +0.265 +0.224 +0.335 0 0 0 0 +0.180 +0.265 +0.224 +0.335 0 0 0 0 +0.190 +0.300 +0.236 +0.375 0 0 0 0 +0.190 +0.300 +0.236 +0.375 0 0 0 0 +0.190 +0.300 +0.236 +0.375 0 0 0 0 +0.190 +0.300 +0.236 +0.375 0 0 0 0 +0.190 +0.300 +0.236 +0.375 0 0 0 0 +0.190 +0.300 +0.236 +0.375 0 0 0 0 +0.200 +0.300 +0.250 +0.375 0 0 0 0 +0.200 +0.300 +0.250 +0.375 0 0 0 0 +0.200 +0.300 +0.250 +0.375 0 0 0 0 +0.200 +0.300 +0.250 +0.375 0 0 0 0 +0.200 +0.300 +0.250 +0.375 0 0 0 0 M12X1 12 11.350 10.917 M14X1 14 13.350 12.917 M12X1.25 12 11.188 10.647 M14X1.25 14 13.188 12.647 M12X1.5 12 11.026 10.376 M14X1.5 14 13.026 12.376 M16X1.5 16 15.026 14.376 M18X1.5 18 17.026 16.373 M20X1.5 20 19.026 18.376 M22X1.5 22 21.026 20.376 M24X1.5 24 23.026 22.376 M26X1.5 26 25.026 24.376 M27X1.5 27 26.026 25.376 M30X1.5 M33X1.5 30 29.026 28.376 33 32.026 31.376 6g 中径大径公差 公差 --0.026 0.026 --0.138 0.206 --0.026 0.026 --0.144 0.206 --0.026 0.026 --0.144 0.206 --0.028 0.028 --0.160 0.240 --0.028 0.028 --0.160 0.240 --0.032 0.032 --0.172 0.268 --0.032 0.032 --0.172 0.268 --0.032 0.032 --0.172 0.268 --0.032 0.032 --0.172 0.268 --0.032 0.032 --0.172 0.268 --0.032 0.032 --0.172 0.268 --0.032 0.032 --0.182 0.268 --0.032 0.032 --0.182 0.268 --0.032 0.032 --0.182 0.268 --0.032 0.032 --0.182 0.268 --0.032 0.032 --欧阳学创编

欧阳学创编

M36X1.5 36 35.026 34.376 +0.200 +0.300 +0.250 +0.375 0 0 0 0 +0.200 +0.300 +0.250 +0.375 0 0 0 0 +0.200 +0.300 +0.250 +0.375 0 0 0 0 +0.224 +0.375 +0.280 +0.475 0 0 0 0 +0.224 +0.375 +0.280 +0.475 0 0 0 0 +0.224 +0.375 +0.280 +0.475 0 0 0 0 +0.224 +0.375 +0.280 +0.475 0 0 0 0 +0.224 +0.375 +0.280 +0.475 0 0 0 0 +0.224 +0.375 +0.280 +0.475 0 0 0 0 +0.224 +0.375 +0.280 +0.475 0 0 0 0 +0.236 +0.375 +0.300 +0.475 0 0 0 0 +0.236 +0.375 +0.300 +0.475 0 0 0 0 +0.236 +0.375 +0.300 +0.475 0 0 0 0 +0.236 +0.375 +0.300 +0.475 0 0 0 0 M39X1.5 39 38.026 37.376 M42X1.5 42 41.026 40.376 M27X2 27 25.701 24.835 M30X2 30 28.701 27.835 M33X2 33 31.701 30.835 M36X2 36 34.701 33.835 M39X2 39 37.701 36.835 M42X2 42 40.701 39.835 M45X2 45 43.701 42.835 M52X2 52 50.701 49.835 M60X2 60 58.701 57.835 M64X2 64 62.701 61.835 M72X2 72 70.701 69.835 0.182 -0.032 -0.182 -0.032 -0.182 -0.032 -0.182 -0.038 -0.208 -0.038 -0.208 -0.038 -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 0.268 -0.032 -0.268 -0.032 -0.268 -0.032 -0.268 -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 -0.038 -0.318 -0.038 -0.318 -0.038 -0.318 时间：2021.03.03 创作：欧阳学 欧阳学创编