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最全的螺纹孔径对照表

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最大最小最大最小G4-G6G7-G8G9M1.0*0.250.750.7850.729M12*1.011.0011.15310.917M1.0*0.250.860.88M1.1*0.250.850.8850.829M12*0.511.5011.52011.400M1.1*0.250.960.98最大

M1.2*0.250.950.9850.929M14*1.512.5012.67612.376M1.2*0.251.061.08G 1/167.726.84M1.4*0.31.101.1421.075M14*1.013.0013.15312.917M1.4*0.31.241.25G(PF)1/89.738.85M1.6*0.351.251.3211.221M15*1.513.5013.67613.376M1.6*0.351.411.431/413.1611.89

M1.7*0.351.351.4211.321M15*1.014.0014.15313.917M1.7*0.351.511.533/816.6615.40

M1.8*0.351.451.5211.421M16*1.514.5014.67614.376M1.8*0.351.611.631/220.9619.17

M2.0*0.41.601.6791.567M16*1.015.0015.15314.917M2*0.41.781.805/822.9121.13M2.2*0.451.751.8381.713M17*1.515.5015.67615.376M2.2*0.451.951.983/426.4424.66M2.3*0.41.901.9791.867M17*1.016.0016.15315.917M2.3*0.42.082.107/830.2028.42

M2.5*0.452.102.1382.013M18*2.016.0016.21015.835M2.5*0.452.252.28133.2530.93

M2.6*0.452.202.2382.113M18*1.516.5016.67616.376M2.6*0.452.352.381.12537.9035.58

M3.0*0.52.502.5992.459M18*1.017.0017.15316.917M3.0*0.52.732.751.2541.9139.59M3.0*0.62.402.4402.280M20*2.018.0018.21017.835M3.5*0.63.173.201.37544.3242.01M3.5*0.62.903.0102.850M20*1.518.5018.67618.376M4.0*0.73.623.653.691.547.8049.02

M4.0*0.73.303.4223.242M20*1.019.0019.15318.917M5.0*0.84.564.604.641.62551.9150.79

M4.0*0.753.253.3263.106M22*2.020.0020.21019.835M6.0*1.05.455.505.551.7553.7556.66

M4.5*0.753.803.8783.688M22*1.520.5020.67620.376M7.0*1.06.456.506.55259.61M5.0*0.84.204.3344.134M22*1.021.0021.15320.917M8.0*1.257.317.387.44M5.0*0.94.104.1703.930M24*2.022.0022.21021.835M10*1.59.189.259.32M6.0*1.05.005.1534.917M24*1.522.5022.67622.376M10*1.259.319.389.44M7.0*1.06.006.1535.917M24*1.023.0023.15322.917M12*1.7511.0411.1211.21M8.0*1.256.806.9126.647M25*2.023.0023.21022.835M12*1.2511.3111.3811.44M9.0*1.257.807.9127.647M25*1.523.5023.67623.376最大

M10*1.58.508.6768.376M25*1.024.0024.15323.917PS 1/16 - 286.506.632

M11*1.59.509.6769.376M26*1.524.5024.67624.376PS 1/8 - 288.508.637

M12*1.7510.3010.44110.106M27*2.025.0025.21024.835PS 1/4 - 1911.4011.549

M14*2.012.0012.21011.835M27*1.525.5025.67625.376PS 3/8 - 1915.0015.054

M16*2.014.0014.21013.835M27*1.026.0026.15325.917PS 1/2 - 1418.5018.773

M18*2.515.5015.74415.294M28*2.026.0026.21025.835PS 3/4 - 1424.0024.259

M20*2.517.5017.74417.294M28*1.526.5026.67626.376PS 1 - 1130.2030.471

M22*2.519.5019.74419.294M28*1.027.0027.15326.917规格PS 1-1/4 - 1138.8039.132

M24*3.021.0021.25220.752M30*3.027.0027.25226.752(UNC)最大最小PS 1-1/2 - 1144.8045.025

M27*3.024.0024.25223.752M30*2.028.0028.21027.835 (螺丝牙外径)PS 2 - 1156.5056.836

M30*3.526.5026.77126.211M30*1.528.5028.67628.376No.1-64(1.854)1.551.5821.425

M30*1.029.0029.15328.917No.2-56(2.184)1.801.8711.695

M32*2.030.0030.21029.835No.3-48(2.515)2.102.1461.941

M32*1.530.5030.67630.376No.4-40(2.845)2.302.3852.157

M33*3.030.0030.25229.752No.5-40(3.175)2.602.6972.487

M33*2.031.0031.21030.835No.6-32(3.505)2.802.8952.642

最大最小M33*1.531.5031.67631.376No.8-32(4.166)3.403.5303.302M1.0*0.20.800.8210.783M35*1.533.5033.67633.376No.10-24(4.826)3.903.9623.683

M1.1*0.20.900.9210.883M36*3.033.0033.25232.752No.12-24(5.486)4.504.5974.344PT 1/16 -286.106.206.2446.384

M1.2*0.21.001.0210.983M36*2.034.0034.21033.8351/4 - 205.105.2574.979PT 1/8 -288.108.208.4298.388

M1.4*0.21.201.2211.183M36*1.534.5034.67634.3765/16 - 186.606.7316.401PT 1/4 -1910.7011.0010.96211.174

M1.6*0.21.401.4211.3833/8 - 168.008.1537.798PT 3/8 -1914.2014.5014.44814.658

M1.7*0.21.451.5001.4607/16 - 149.409.5509.144PT 1/2 -1417.6018.0017.97918.263

M1.8*0.21.601.6211.5831/2 - 1310.8011.02310.592PT 3/4 -1423.0023.5023.37823.663

M2.0*0.251.751.7851.7299/16 - 1212.2012.44611.989PT 1 -1129.0029.5029.45929.822

M2.2*0.251.951.9851.929规格5/8 - 1113.6012.86813.386PT 1-1/4 -1137.5038.0037.97638.339

M2.3*0.252.052.0612.001(UNF)最大最小3/4 - 1016.5018.84016.307PT 1-1/2 -1143.4044.0043.86944.232

M2.5*0.352.202.2212.1217/8 - 919.5019.76119.177PT 2 -1154.9055.5055.41255.844

M2.6*0.352.202.2462.186No.0-80(1.524)1.251.3051.1821 - 822.2022.60621.971

M3.0*0.352.702.7212.621No.1-72(1.854)1.551.6121.4741-1/8 - 725.0025.34924.638

M3.5*0.353.203.2213.121No.2-64(2.184)1.851.9121.7561-1/4 - 728.2028.52427.813

M4.0*0.53.503.5993.459No.3-56(2.515)2.102.1972.0251-3/8 - 630.8031.11530.353

M4.5*0.54.004.0993.959No.4-48(2.845)2.402.4582.2711-1/2 - 634.0034.29033.528

M5.0*0.54.504.5994.459No.5-44(3.175)2.702.7402.5511-3/4 - 539.5039.82738.964

M5.5*0.55.005.0994.959No.6-40(3.505)2.903.0222.8202 - 4-1/245.2045.59344.679使用绞刀时不用绞刀时

M6.0*0.755.305.3785.188No.8-36(4.166)3.503.6063.4041/16 - 276.106.25

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各种螺纹详细参数和钻孔直径对照表

各种螺纹详细参数和钻孔直径对照表

註(1)M1.4以下等級：5H、M1.6以上等級：6H (2)基於JIS B 0209-1982標準
(2)基於JIS B 0211-1982標準
螺纹下孔径表
螺纹下孔径表
螺纹下孔径表。

螺纹下孔径表
美制管用耐密斜行螺纹(NPTF‧NPSF) (單位：
上述钻头直径來源於美制管用耐密斜行螺纹ANSI B1.20.3—1957 Dryseal Pipe Threads (Inch)標準。

螺纹下孔径表(無屑絲攻用)
螺纹下孔径表(無屑絲攻用)
螺纹下孔径表(無屑絲攻用)
螺纹下孔径表(無屑絲攻用)
螺纹下孔径表(護套螺纹用)
螺纹下孔径表(護套螺纹用)
螺纹下孔径表(護套螺纹用)
各種換算表
管用螺絲基準寸法(mm)
美制螺絲外徑公厘(mm)換算表。

螺纹标准孔径螺距表

螺纹标准孔径螺距表

35 (1.5) 1.6 0.35 0.2 36 4 3 2 1.5 1 1.8 0.35 0.2 (38) 1.5 2 0.4 0.25
M3.0* 0.6 2.4 2.44 2.28 M3.5* 0.35 3.2 3.221 3.121 22*1.0 21 21.15 M3.5* 0.6 2.9 3.01 2.85 M4.0* 0.5 3.5 3.599 3.459 M24*2 .0 22 2M24..201* 0.7 3.8 3.422 3.242 M4.5* 0.5 4 4.099 3.959 M24*1 .5 22.5 22.67 M4.0* 0.75 3.25 3.326 3.106 M5.0* 0.5 4.5 4.599 4.459 M24*1 .0 23 23.15 3
M1.8* 0.35 1.45 1.521 1.421 M1.8* 0.2 1.6 1.621 1.583 M18*1 .5 16.5 16.67 M2.0* 0.4 1.6 1.679 1.567 M2.0* 0.25 1.75 1.785 1.729 M18*1 .0 17 17.15 3 M2.2* 0.45 1.75 1.888 1.713 M2.2* 0.25 1.95 1.985 1.929 M20*2 .0 18 18.21 17.83 5
No.16 0.2680 6.8072 1-7/8 1.8750 47.6250 No.18 0.2940 7.4676 2 2.0000 50.8000 No.20 0.3200 8.1280
No.24 0.3720 9.4488 公称直 径与螺 距系列 表 GB1936公3称直 径d(毫 米) 螺 距 l(毫 米) 公称 直径 d(毫米) 螺距 l(毫米)
M4.5* 0.7 3.8 3.878 3.688 M5.5* 0.5 5 5.099 4.959 M25*2 .0 23 23.21 22.83 M5*0. 8 4.2 4.334 4.134 M6.0* 0.75 5.3 5.378 5.188 M25*1 .5 23.5 2M35.*607. 9 4.1 4.17 3.98 M6.0* 0.5 5.5 5.55 5.4 M25*1 .0 24 24.15 3M6*1. 05 5.153 4.917 M7.0* 0.75 6.3 6.378 6.188 M26*1 .5 24.5
NPT管螺纹基本尺寸表

NPT管螺纹基本尺寸表

.'.NPT 管螺纹标记示例：NPT1’/4-LH （右旋不标注）表1：NPT 螺纹表2：基本尺寸表注：1、本螺纹用于机器上的燃料管、油管、水管、气管的连接；2、公称直径近似为管子孔径；3、有效长度l1同样适用于外螺纹和内螺纹的长度；4、必要情况下可减短l2的尺寸，但l1和l2实际之差不得小于表中所列的l1与l2之差，以保证基面和螺尾之间有一定数量的完整牙形；dt 尺寸供参考。

名称 符号 计算公式名称 符号 计算公式 外径 d 牙形高度 h1 h1=0.8t中径 d2 管端至基面长度 l2 内径 d1 有效长度 l1管端螺纹内径 dt dt=d1-l2/16斜角 φ φ=1°47′24″ 公制1.79°螺距 t 锥度 2tan φ 2tanφ=1:16理论高度HH=0.866t公称 直径 /英寸 每英寸 牙数 螺距 螺纹长度 螺纹直径 管端螺纹 内径 牙型 高度 有效 长度 管端至 基面长度 外径 中径 内径 n t l1 l2 d d2 d1 dt h2 1/16 27 0.941 6.5 4.064 7.895 7.142 6.389 6.135 0.753 1/8 7 4.572 10.2729.5198.7668.481/4 18 1.411 9.5 5.08 13.572 12.443 11.314 10.997 1.129 3/8 10.5 6.096 17.055 15.926 14.797 14.416 1/2 141.81413.5 8.128 21.223 19.772 18.321 17.813 1.4513/4 14 8.611 26.068 25.117 23.666 23.128 1 11½2.20917.8 10.16 33.228 31.461 29.694 29.059 1.7671'/4 18 10.668 41.985 40.218 38.451 37.784 1'/2 18.5 10.668 48.054 46.28744.5243.85321911.07460.092 58.325 56.558 55.866。

螺纹下孔径规格表

螺纹下孔径规格表


M6*0.75 5.30 5.378 5.188
M6*0.5 5.50 5.550 5.400
M7*0.75 6.30 6.378 6.188
M7*0.5 6.50 6.550 6.400
M8*1
7.00 7.153 6.917
M8*0.75 7.30 7.376 7.188
M8*0.5 7.50 7.520 7.400
5/8 - 14 PF 21.00 21.128 20.587
3/4 - 14 PF 24.50 24.658 24.117
7/8 - 14 PF 28.20 28.418 27.877
1 - 11 PF
1.1/8 - 11 1.1/4 - 11 1.1/2 - 11 1.3/4 - 11
2 - 11 PF
No. 2 - 56 1.80 1.871 1.695
No. 3 - 48 2.10 2.146 1.941
No. 4 - 40 2.30 2.385 2.157
No. 5 - 40 2.60 2.697 2.487
No. 6 - 32 2.80 2.895 2.642
No. 8 - 32 3.40 3.530 3.302
標準徑 2級牙鑽孔徑 最大 最小
18.00 18.210 17.835 18.50 18.676 18.376 19.00 19.153 18.917 20.00 20.210 19.835 20.50 20.676 20.376 21.00 21.153 20.917 22.00 22.210 21.835 22.50 22.676 22.376 23.00 23.153 22.917 23.00 23.210 22.835 23.50 23.676 23.376 24.00 24.153 23.917 24.50 24.676 24.376 25.00 25.210 24.835 25.50 25.676 25.376 26.00 26.153 25.917 26.00 26.210 25.835 26.50 26.676 26.376 27.00 27.153 26.917 27.00 27.252 26.752 28.00 28.210 27.835 28.50 28.676 28.376 29.00 29.153 28.917 30.00 30.210 29.835 30.50 30.676 30.376 30.00 30.252 29.752 31.00 31.210 30.835 31.50 31.676 31.376 33.50 33.676 33.376 33.00 33.252 32.752 34.00 34.210 33.835 34.50 34.676 34.376 36.50 36.676 36.376 36.00 36.252 35.752 37.00 37.210 36.835 37.50 37.676 37.376 37.00 37.252 36.752 38.00 38.210 37.835 38.50 38.676 38.376 38.00 38.270 37.670 39.00 39.252 38.752 40.00 40.210 39.835 40.50 40.676 40.376 41.00 41.270 40.670 42.00 42.252 41.752 43.00 43.210 42.835 43.50 43.676 43.376