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牙口 丝口 尺寸参照表:


常用螺纹尺寸参数简明速查表：











螺丝攻牙钻孔径和滚丝径规格对照表
螺丝攻牙钻孔径和滚丝径对照表
公制粗螺纹
美制粗螺纹
规格标准径
2级牙钻孔径
规格（UNC）标准径
2级牙钻孔径
最大最小最大最小
M1.0×0.250.750.7850.729NO.1-64(1.854)1.551.5821.425
M1.1×0.250.850.8850.829NO.2-56(2.184)1.81.8711.695
M1.2×0.250.950.9850.985NO.3-48(2.515)2.12.1461.941
M1.4×0.31.11.1421.075NO.4-40(2.845)2.32.3852.157
M1.6×0.351.251.3211.221NO.5-40(3.175)2.62.6972.487
M1.7×0.351.351.4211.321NO.6-32(3.505)2.82.8952.642
M1.8×0.351.451.5211.421NO8-32(4.166)3.43.533.302
M2.0×0.41.61.6791.567NO.10-24(4.826)3.93.9623.683
M2.2×0.451.751.8381.713NO.12-24(5.486)4.54.5974.344
M2.3×0.41.91.9791.8672001/4/205.15.2574.979
M2.5×0.452.12.1382.0135/16-186.66.7316.401
M2.6×0.452.22.2382.1132003/8/1688.1537.798
M3.0×0.52.52.5992.4597/16-149.49.559.144
M3.0×0.62.42.442.282001/2/1310.811.02310.592
M3.5×0.62.93.012.859/16-1212.212.44611.989
M4.0×0.73.33.4223.2422005/8/1113.612.86813.386
M4.0×0.753.253.3263.1062003/4/1016.518.8416.307
M4.5×0.753.83.8783.6882007/8/919.519.76119.177
M5.0×0.84.24.3344.134122.222.60621.971
M5.0×0.94.14.173.931-1/8-72525.34924.638
M6.0×1.055.1534.9171-1/4-728.228.52427.813
M7.0×1.066.1535.9171-3/8-630.831.11530.353
M8.0×1.256.86.9126.6471-1/2-63434.2933.528
M9.0×1.257.87.9127.6471-3/4-539.539.82738.964
M10×1.58.58.6768.3762-4-1/245.245.59344.679
M11×1.59.59.6769.376
M12×1.7510.310.44110.106
M14×2.01212.2111.835
M16×2.01414.2113.835
M18×2.515.515.74415.294
M20×2.517.517.74417.294
M22×2.519.519.74419.294
M24×3.02121.25220.752
M27×3.02424.25223.752
M30×3.526.526.77126.211
螺丝攻牙钻孔径和滚丝径对照表
公制细螺纹
美制细螺纹
规格标准径
2级牙钻孔径
规格（UNC）标准径
2级牙钻孔径
最大最小最大最小
M1.0×0.20.80.8210.783NO.0-80(1.524)1.251.3051.182
M1.1×0.20.90.9210.883NO.1-72(1.854)1.551.6121.474
M1.2×0.211.0210.983NO.2-64(2.184)1.851.9121.756
M1.4×0.21.21.2211.183NO.3-56(2.515)2.12.1972.025
M1.6×0.21.41.4211.383NO.4-48(2.845)2.42.4582.271
M1.7×0.21.451.51.46NO.5-44(3.175)2.72.742.551
M1.8×0.21.61.6211.583NO.6-40(3.505)2.93.0222.82
M2.0×0.251.751.7851.729NO.8-36(4.166)3.53.6063.404
M2.2×0.251.951.9851.929NO.10-32(4.826)4.14.1653.963
M2.3×0.252.052.0612.001NO.12-28(5.846)4.64.7244.496
M2.5×0.352.22.2212.1212001/4/285.55.5885.36
M2.6×0.352.22.2462.1865/16-246.97.0356.782
M3.0×0.352.72.7212.6212003/8/248.58.6368.382
M3.5×0.353.23.2213.1217/16-209.910.0339.729
M4.0×0.53.53.5993.4592001/2/2011.511.60711.329
M4.5×0.544.0993.9599/16-1812.913.08112.751
M5.0×0.54.54.5994.4592005/8/1814.514.68114.351
M5.5×0.555.0994.9592003/4/1617.517.67817.323
M6.0×0.755.35.3785.1882007/8/1420.520.67520.27
M6.0×0.55.55.555.41月12日23.223.57123.114
M7.0×0.756.36.3786.1881-1/8-1226.526.74626.289
M7.0×0.56.56.556.41-1/4-1229.529.92129.464
M8.0×1.077.1536.9171-3/8-1232.833.09632.639
M8.0×0.757.37.3787.1881-1/2-123636.27135.814
M8.0×0.57.57.527.4
M9.0×1.088.1537.917
M9.0×0.758.38.3788.188
M10×1.258.88.9128.647
M10×1.099.1538.917
M10×0.759.39.3789.188
M10×0.59.59.529.4
M11×1.01010.1539.917
M11×0.7510.310.37810.188
M12×1.510.510.67610.376
M12×1.2510.810.91210.647
M12×1.01111.15310.917
M12×0.511.511.5211.4
M14×1.512.512.67612.376
M14×1.01313.15312.917
M15×1.513.513.67613.376
M15×1.01414.15313.917
M16×1.514.514.67614.376
M16×1.01515.15314.917
M17×1.515.515.67615.376
M17×1.01616.15315.917
M18×2.01616.2115.835
M18×1.516.516.67616.376
M18×1.01717.15316.917
M20×2.01818.2117.835
M20×1.518.518.67618.376
M20×1.01919.15318.917
M22×2.02020.2119.835
M22×1.520.520.67620.376
M22×1.02121.15320.917
M24×2.02222.2121.835
M24×1.522.522.67622.376
M24×1.02323.15322.917
M25×2.02323.2122.835
M25×1.523.523.67623.376
M25×1.02424.15323.917
M26×1.524.524.67624.376
M27×2.02525.2124.835
M27×1.525.525.67625.376
M27×1.02626.15325.917
M28×2.02626.2125.835
M28×1.526.526.67626.376
M28×1.02727.15326.917
M30×3.02727.25226.752
M30×2.02828.2127.835
M30×1.528.528.67628.376
M30×1.02929.15328.917
M32×2.03030.2129.835
M32×1.530.530.67630.376
M33×3.03030.25229.752
M33×2.03131.2130.835
M33×1.531.531.67631.376
M35×1.533.533.67633.376
M36×3.03333.25232.752
M36×2.03434.2133.835
M36×1.534.534.67634.376
螺丝攻牙钻孔径和滚丝径对照表
公制挤压丝攻钻孔径
美制挤压丝攻钻孔径
规格
精度等级
规格（UNC）
精度等级
G4-G6G7-G8G9G4-G6G7-G8G9
M1.0×0.250.860.88－NO.2-56UNC1.94－－
M1.1×0.250.960.98－NO.3-482.23－－
M1.2×0.251.061.08－NO.4-402.5－－
M1.4×0.31.241.25－NO.5-402.83－－
M1.6×0.351.411.43－NO.6-323.07－－
M1.7×0.351.511.53－NO.8-323.733.77－
M1.8×0.351.611.63－NO.10-244.244.3－
M2.0×0.41.781.8－NO.12-244.94.96－
M2.2×0.451.951.98－2001/4/20－5.72－
M2.3×0.42.082.1－5/16-18－7.24－
M2.5×0.452.252.28－2003/8/16－8.748.81
M2.6×0.452.352.38－7/16-14－10.210.3
M3.0×0.52.732.75－2001/2/13－11.2711.82
M3.5×0.63.173.2－NO.2-64UNF1.97－－
M4.0×0.73.623.653.69NO.3-562.27－－
M5.0×0.84.564.64.64NO.4-482.56－－
M6.0×1.05.455.55.55NO.5-442.86－－
M7.0×1.06.456.56.55NO.6-403.16－－
M8.0×1.257.317.387.44NO.8-363.78－－
M10×1.59.189.259.32NO.10-324.394.43－
M10×1.259.319.389.44NO.12-284.995.04－
M12×1.7511.0411.1211.212001/4/285.855.9－
M12×1.2511.3111.3811.445/16-247.367.41－
2003/8/24－9－
7/16-20－10.4810.54
2001/2/20－12.0712.13



美制特细螺纹
英制电器螺纹
规格标准径
2级牙钻孔径
规格钻孔径
最大最小
NO.12-324.74.8264.6232BA4.0-4.2
1/4     -325.65.695.4863BA
5/16   -327.17.2647.0874BA3.0-3.2
3/8    -328.78.8658.6615BA2.7-2.8
7/16   -2810.210.33810.1356BA2.4-2.5
2001/2/2811.811.93811.709
9/16    -2413.213.38613.132
2005/8/2414.814.98614.732
2003/4/2017.817.95817.678
2007/8/202121.13320.853
1月20日2424.30824.028


螺丝攻牙钻孔径和滚丝径对照表
英制螺纹
公制螺纹
针车用螺纹
规格(UNEF)
钻孔径
规格滚丝径规格滚丝径
硬材软材
W 1/8 - 402.652.6M3×0.52.63-2.60SM1/8-402.735-2.688
W 5/32 - 323.253.2M3.0×0.62.56-2.53SM1/8-442.769-2.722
W 3/16  - 243.753.7M3.5×0.63.06-3.03SM9/64-403.128-3.083
W 1/4 - 205.15M4.0×0.73.49-3.45SM11/64-403.855-3.805
W 5/16 - 186.66.5M4.0×0.753.45-3.41SM3/16-324.205-4.155
W 3/8 - 1687.9M4.5×0.753.96-3.92SM3/16-284.143-4.093
W 7/16 - 149.49.3M5.0×0.84.43-4.38SM7/32-325.003-4.955
W 1/2 - 1210.710.5M5.0×0.94.36-4.31SM15/64-285.325-5.570
W 9/16 - 1212.312M6.0×1.05.30-5.25SM1/4-405.890-5.735
W 5/8 - 1113.713.5M7.0×1.06.30-6.25SM1/4-285.721-5.366
W 3/4 - 1016.716.5M8.0×1.07.28-7.23SM9/32-286.508-6.648
W 7/8 - 919.519.3M8.0×1.257.12-7.07SM11/32-288.092-8.432
W1 - 822.422SM3/8-288.880-8.015
W 1-1/8 - 72524.8SM7/16-2810.466-10.401
W 1 - 1/4 - 728.328SM7/16-1610.037-9.967
SM1/2-2011.819-11.749
SM9/26-2013.400-13.425


螺丝攻牙钻孔径和滚丝径规格对照表(2)
英制管螺纹
英制管螺纹
美制管螺纹
规格标准径
钻孔径
规格
标准径
有交牙部之长度（最小）中之毋螺牙内径标准长度（最小）中之毋螺牙内径规格
钻孔径
最大最小使用绞刀时不用绞刀时
NPT
NPS
使用绞刀时不用绞刀时
PS 1/16 - 286.56.6326.49PT 1/16 - 286.16.26.2446.3841/16 - 276.16.256.35
PS 1/8 - 288.58.6378.495PT 1/8 - 288.18.28.2498.3882001/8/278.338.438.74
PS 1/4 - 1911.411.54911.341PT 1/4 - 1910.71110.96211.1742001/4/1810.7211.1311.13
PS 3/8 - 191515.05414.846PT 3/8 - 1914.214.514.44814.6582003/8/1814.2714.2714.68
PS 1/2 - 1418.518.77318.489PT 1/2 - 1417.61817.97918.2632001/2/1417.4817.8618.26
PS 3/4 -142424.25923.975PT 3/4 - 142323.523.37823.6632003/4/1422.6323.0123.42
PS 1 - 1130.230.47130.111PT 1- 112929.529.45929.8221 - 11-1/228.5828.9829.36
PS 1-1/4 - 1138.839.13238.772PT 1-1/4 - 1137.53837.97638.3391-1/4-11-1/237.3137.6938.1
PS 1-1/2 - 1144.845.02544.665PT 1-1/2 - 1143.44443.86944.2321-1/2-11-1/243.6644.0444.45
PS 2 - 1156.556.83656.476PT 2 - 1154.955.555.41255.8442 - 11 - 1/255.5855.9656.36


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