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1、规格标准径最大最小规格标准径最大最小规格标准最大最小M1.0*0.250.750.7850.729M1.0*0.20.80.820.8M15*1.0141413.9M1.1*0.250.850.8850.829M1.1*0.20.90.920.9M16*1.5151514.4M1.2*0.250.950.9850.929M1.2*0.211.021M16*1.0151514.9M1.4*0.31.11.1421.075M1.4*0.21.21.221.2M17*1.5161615.4M1.6*0.351.251.3211.221M1.6*0.21.41.421.4M17*1.0161615.9
2、M1.7*0.351.351.4211.321M1.7*0.21.451.51.5M18*2.0161615.8M1.8*0.351.451.5211.421M1.8*0.21.61.621.6M18*1.5171716.4M2.0*0.41.61.6791.567M2.0*0.251.751.791.7M18*1.0171716.9M2.2*0.451.751.8881.713M2.2*0.251.951.991.9M20*2.0181817.8M2.3*0.41.91.9791.867M2.3*0.252.052.062M20*1.5191918.4M2.5*0.452.12.1382.0
3、13M2.5*0.352.22.222.1M20*1.0191918.9M2.6*0.452.22.2382.113M2.5*0.352.22.252.2M22*2.0202019.8M3.0*0.52.52.5992.459M3.0*0.352.72.722.6M22*1.5212120.4M3.0*0.62.42.442.28M3.5*0.353.23.223.122*1.0212120.9M3.5*0.62.93.012.85M4.0*0.53.53.63.5M24*2.0222221.8M4.0*0.73.83.4223.242M4.5*0.544.14M24*1.5232322.4M
4、4.0*0.753.253.3263.106M5.0*0.54.54.64.5M24*1.0232322.9M4.5*0.73.83.8783.688M5.5*0.555.15M25*2.0232322.8M5*0.84.24.3344.134M6.0*0.755.35.385.2M25*1.5242423.4M5*0.94.14.173.98M6.0*0.55.55.555.4M25*1.0242423.9M6*1.055.1534.917M7.0*0.756.36.386.2M26*1.5252524.9M7*1.066.1535.917M7.0*0.56.56.556.4M27*2.02
5、52524.7M8*1.256.86.9126.647M8.0*177.156.9M27*1.5262625.4M9*1.257.87.9127.647M8.0*0.757.37.387.2M27*1.0262625.7M10*1.58.58.6768.376M8.0*0.57.57.527.4M28*2.0262625.8M11*1.59.59.6769.376M9.0*188.157.9M28*1.5262726.4M12*1.7510.310.2410.11M9.0*0.758.38.388.2M28*1.0272726.9M14*2.01212.2111.84M10*1.258.88.
6、918.6M30*3.0272726.8M16*2.01414.2113.84M10*1.099.158.9M30*2.0282827.8M18*2.51515.14415.29M10*0.759.39.389.2M30*1.0282928.4M20*2.51717.74417.29M10*0.59.59.529.4M32*2.0302928.9M22*2.51919.74419.29M11*1.01010.29.9M32*1.5303029.8M24*3.02121.25220.75M11*0.7510.310.410M33*3.0303130.4M27*3.02424.25223.75M1
7、2*1.510.510.710M33*2.0313029.8M30*3.526.526.77126.21M12*1.2510.810.911M33*1.5323130.8M12*11111.211M35*1.5343431.4M12*0.511.511.511M36*3.0333332.8M14*0.512.512.712M36*2.0343433.8M14*1.01313.213M36*1.5343534.4M15*1.5013.513.713公制粗螺纹公制细螺纹上限下限上限下限M1*0.250.750.7850.729M1*0.200.80.8210.783M1.1*0.250.850.8
8、850.829M1.1*0.200.90.9210.883M1.2*.250.950.9850.929M1.2*0.2011.0210.983M1.4*0.31.11.1421.075M1.4*0.201.21.2211.183M1.6*0.351.251.3211.221M1.6*0.201.41.4211.383M1.7*0.351.351.4211.321*M1.7*0.21.451.51.46M1.8*0.351.451.5211.421M1.8*0.201.61.6211.583M2*0.41.61.6791.576M2*0.251.751.7851.729M2.2*0.451.75
9、1.8381.713M2.2*0.251.951.9851.929M2.3*0.41.91.9791.867*M2.3*0.22.052.0162.001M2.5*0.452.12.1382.013M2.5*0.352.1212.2212.121M2.6*0.452.22.2382.113*M2.6*0.32.22.2462.186M3*0.52.52.5992.459M3*0.352.72.7212.621*M3*0.62.42.442.28M3.5*0.353.23.2213.121M3.5*0.62.93.012.85M4*0.503.53.5993.459M4*0.73.33.4223
10、.242M4.5*0.5044.0993.959*M4*0.753.253.3263.106M5*0.504.54.5994.459M4.5*0.753.83.8783.688M5.5*0.5055.0994.959M5*0.84.24.3344.134M6*0.755.35.3785.188*M5*0.94.14.173.93*M6*0.55.55.555.4M6*155.1534.917M7*0.756.36.3786.188M7*166.1535.917*M7*0.506.56.556.4M8*1.256.86.9126.647M8*1.077.1536.917M9*1.257.87.9
11、127.647M8*0.757.37.3787.188M10*1.58.58.6768.376*M8*0.507.57.527.4M11*1.59.59.6769.376M9*1.088.1537.917M12*1.7510.310.44110.106M9*0.758.38.3788.188M14*21212.2111.835M10*1.258.88.9128.647M16*21414.2113.835M18*2.515.515.74415.249M20*2.517.517.74417.249M22*2.519.519.74419.249M24*32121.25220.752M27*32424
12、.25223.752M30*3.526.526.77126.211M33*3.529.529.77129.211M36*43232.2731.67M39*43535.2734.67M42*4.537.537.77937.129M45*4.540.540.77940.129M48*54343.27942.587附*号螺纹自学968年3月删除公制细螺纹公制标准螺纹规格标准径2级螺纹内径规格标准径1级-2级螺纹内径标准径最大最小最大NO.164（1.854)1.551.5821.452PS116-286.56.632NO.2-56(2.184)1.81.8711.695PS18-288.58.687
13、NO.3-48(2.515)2.12.1461.941Ps14-1911.411.549NO.4-40(2.845)2.32.3852.157PS38-191515.054NO.5-40(3.173)2.62.6792.487PS12-1418.518.733NO.6-32(3.505)2.82.8952.642PS34-142424.259NO.8-32(4.166)3.43.533.302PS14-1130.230.471NO.10-24(4.826)3.93.9623.683PS1-14-1138.839.132NO.12-24(5.486)4.54.5974.344PS1-12-114
14、4.845.02514-205.15.2574.979PS2-12-1156.556.836516-186.66.7316.40138-1688.1537.793716-149.49.559.144有效牙部之长标准长度之12-1310.811.02310.592使用铰刀时不用铰刀时度中螺牙内径螺牙内径916-1212.212.44611.989PT116-286.16.26.2446.38458-1113.612.86813.386PT18-288.188.2498.38834-1016.518.8416.307PT14-1910.71110.96211.17478-919.519.76119
15、.507PT38-1914.214.514.44814.68518-822.222.60621.971PT12-1417.61317.97918.2631-18-72525.34924.6398PT34-142323.523.37823.6631-14-728.228.52427.813PT14-112929.529.45929.8221-38-630.831.11530.353PT1-14-1137.53837.97638.3391-12-63434.2933.528PT1-12-1143.44443.86944.2321-34-539.539.82738.964PT2-2-1154.955
16、.555.41255.8441-4-1245.245.59344.67944.66556.476英制管螺纹规格标准径18.48923.97530.1116.498.49511.34114.84638.772美制粗螺纹英制管螺纹规格UNC外径2级牙钻孔径规格标准径钻孔径最小铰刀时不用铰刀时使用铰刀时不使用铰刀时PT116-286.16.26.2446.5.94(0.23)6.15(0.242)6.35(0.250)PT18-288.18.28.249818-278.33(0.328)8.43(0.332)8.74(0.344)PT14-1910.71110.9261114-1810.72(0.422)11.13(0.43811.13(0.438)PT38-1914.214.514.4481438-1814.27(0.526)14.27(0.56214.68(0.578)PT12-1417.61817.9791812-1417.48(0.688)17.86(0.70318.26(0.719)PT34-142323.523.3782334-1422.63(0.891)23.0(0.906)
