美制螺纹尺寸表(mm)

1、美制螺纹尺寸表外螺纹内公称 螺纹牙牙螺公差螺纹外径螺纹中径螺纹小径公差螺纹小径直径规格数高距代号MaxMinMaxMinMax代号MinMax0.073（#1）1-64UNC640.2360.3972A1.838961.742441.582421.531621.366522B1.424941.582421.8543A1.85421.757681.597661.559561.381763B1.424941.582421-72UNF720.210.3532A1.838961.750061.610361.56211.419862B1.47321.61293A1.85421.76531.62561.5

2、90041.43513B1.47321.61290.086(#2)2-56UNC560.2710.4542A2.169162.065021.874521.821181.630682B1.694181.871982.1843A2.18442.080261.889761.849121.645923B1.694181.871982-64UNF640.2360.3972A2.169162.072641.912621.861821.696722B1.755141.912623A2.18442.087881.927861.889761.711963B1.755141.912620.099(3#)3-48U

3、NC480.3150.5292A2.496822.382522.153922.09551.864362B1.940562.14632.5153A2.51462.40032.17172.128521.882143B1.940562.14633-56UNF560.2710.4542A2.496822.392682.202182.14631.958342B2.024382.19713A2.51462.410462.219962.179321.976123B2.024382.19710.112(#4)4-40UNC400.3780.6352A2.824482.694942.4132.34952.067

4、562B2.156462.385062.8453A2.84482.715262.433322.385062.087883B2.156462.385064-48UNF480.3150.5292A2.827022.712722.484122.423162.194562B2.270762.458723A2.84482.73052.50192.456182.212343B2.270762.458720.125(#5)5-40UNC400.3780.6352A3.154683.025142.74322.677162.397762B2.486662.697483.1753A3.1753.045462.76

5、3522.715262.418083B2.486662.697485-44UNF440.3440.5772A3.157223.03532.78132.71782.468882B2.550162.740663A3.1753.053082.799082.750822.486663B2.550162.740660.138(#6）6-32UNC320.4720.7942A3.484883.332482.969262.898142.542B2.64162.89563.5053A3.50523.35282.989582.936242.560323B2.64162.89566-40UNF400.3780.6

6、352A3.484883.355343.07343.007362.727962B2.81943.02263A3.50523.375663.093723.042922.748283B2.81943.012440.164（#8）8-32UNC320.4720.7842A4.142743.990343.627123.553463.197862B3.3023.53064.1663A4.16564.01323.649983.59413.220723B3.3023.528068-36UNF360.4210.7062A4.145284.005583.688083.616963.304542B3.40363.

7、60683A4.16564.02593.70843.655063.324863B3.40363.596640.19（#10）10-24UNC240.631.0582A4.80064.617724.112264.028443.540762B3.6833.96244.8263A4.8264.643124.137664.074163.566163B3.6833.949710-28UNS280.540.9072A4.80064.63554.211324.12753.718562B3.83544.06410-32UNF320.4720.7842A4.803144.650744.287524.211323

8、.858262B3.96244.16563A4.8264.67364.310384.251963.881123B3.96244.1681410-36UNS360.4210.7062A4.803144.663444.345944.269743.96242B4.0644.216410-40UNS400.3780.6352A4.803144.67364.391664.3184.043682B4.14024.292610-48UNS480.3150.5292A4.805684.691384.462784.396744.175762B4.24184.368810-56UNS560.2710.4542A4

9、.808224.704084.513584.450084.269742B4.34344.4450.216（#12）12-24UNC240.631.0582A5.4615.278124.772664.68634.201162B4.34344.59740.4863A5.48645.303524.798064.732024.226563B4.34344.5897812-28UNF280.540.9072A5.4615.29594.871724.790444.378962B4.49584.72443A5.48645.32134.897124.836164.404363B4.49584.7167812-

10、32UNEF320.4720.7842A5.463545.311144.947924.869184.518662B4.62284.8263A5.48645.3344.970784.909824.541523B4.62284.813312-36UNS360.4210.7062A5.463545.323845.006344.930144.879342B4.72444.876812-40UNS400.3780.6352A5.463545.3345.052064.97844.66092B4.80064.95312-48UNS480.3150.5292A5.466085.351785.123185.05

11、7144.836162B4.90225.029212-56UNS560.2710.4542A5.468625.364485.173985.110484.930142B5.00385.10540.251/4-20UNC200.7561.271A6.322066.012185.496565.354324.810761B4.97845.25786.352A6.322066.116325.496565.402584.810762B4.97845.25783A6.356.144265.52455.453384.83873B4.97845.250181/4-24UNS240.631.0582A6.3220

12、66.139185.633725.539745.062222B5.2075.4611/4-27UNS270.560.9412A6.32466.154425.712465.623565.204462B5.3345.56261/4-28UNF280.540.9071A6.32466.075685.735325.608325.242561B5.35945.5882A6.32466.15955.735325.65155.242562B5.35945.5883A6.356.18495.760725.697225.267963B5.35945.56261/4-32UNEF320.4720.7842A6.3

13、2466.17225.808985.72775.379722B5.48645.68963A6.355.68965.834385.773425.405123B5.48645.661661/4-36UNS360.4210.7062A6.327146.187445.869945.79125.488942B5.5885.74041/4-40UNS400.3780.6352A6.327146.19765.915665.8425.570222B5.66425.81661/4-48UNS480.3150.5292A6.329686.215385.986785.91825.697222B5.76585.892

14、81/4-56UNS560.2710.5452A6.329686.225546.035045.9695.79122B5.86745.9690.31255/16-18UNC180.8411.4111A7.907027.574286.990086.835146.228081B6.40086.7317.93752A7.907027.686046.990086.888486.228082B6.40086.7313A7.93757.716527.020566.944366.258563B6.40086.68025/16-20UN200.7561.272A7.907027.701287.081526.97

15、9926.395722B6.55326.8583A7.93757.731767.1127.03586.42623B6.55326.80725/16-24240.631.0581A79095.67.635247.221227.081526.649721B6.78187.03582A7.909567.726687.221227.127246.649722B6.78187.03583A7.93757.754627.249167.180586.677663B6.78186.995165/8-27UNS270.560.9412A7.91217.741927.299967.211066.791962B6.

16、90887.13745/8-28UN280.540.9072A7.91217.7477.322827.236466.830062B6.95967.16283A7.93757.77247.348227.282186.855463B6.95967.129785/8-32UNEF320.4720.7842A7.91217.75977.31527.31526.967222B7.08667.26443A7.93757.78517.360927.360926.992623B7.08667.231385/8-36UNS360.4210.7062A7.914647.774947.457445.32137.07

17、392B7.16287.34065/8-40UNS400.3780.6352A7.914647.78517.503167.42957.157722B7.2397.39145/8-48UNS40.311780.3150.5292A7.917187.802887.574287.50577.287262B7.3667.4930.3253/8-16UNC180.8411.4111A9.491989.13138.460748.295647.599681B7.79788.15348.2552A9.491989.253228.460748.348987.599682B7.79788.15343A9.5259

18、.286248.493768.409947.63273B7.79788.082283/8-18UNS180.8411.4112A9.491989.2718.575048.465827.813042B8.0018.33123/8-20UN200.7561.272A9.494529.288788.669028.564887.983222B8.15348.43283A9.5259.319268.69958.620768.01373B8.15348.374383/8-24UNF240.631.0581A9.497069.222748.808728.663948.237221B8.3828.6362A9

19、.497069.314188.808728.71228.237222B8.3828.6363A9.5259.342128.836668.7638.265163B8.3829.44883/8-27UNS270.560.9412A9.497069.326888.884928.793488.376922B8.5098.73763/8-28UN280.540.9072A9.497069.331968.907788.816348.415022B8.53448.7633A9.5259.35998.935728.867148.442963B8.53448.702043/8-32UNEF320.4720.78

20、42A8.569969.34728.983988.897628.554722B8.66148.86463A9.5259.37269.009388.945888.580123B8.66148.811263/8-36UNS360.4210.7062A9.49969.35999.04248.961128.658862B8.7638.94083/8-40UNC400.3780.6352A9.502149.37269.090669.011928.745222B8.83928.99160.390.39 9.9069.9060.390-27UNS270.560.9412A9.878069.707889.26

21、5929.174488.757922B8.899.11860.43757/16-14UNC141.0811.8141A11.0769410.683249.898389.718048.917941B9.1449.550411.112A11.0769410.815329.898389.7798.917942B9.1449.55043A11.112510.850889.933949.845048.95353B9.1449.441187/16-16UNS160.861.5882A11.0769410.8381810.04579.928869.184642B9.3989.75363A11.0667810

22、.8737410.081269.99499.22023B9.3989.6527/16-18UNS180.8411.4112A11.0794810.858510.1625410.053329.400542B9.57589.9067/16-20UNF200.7561.271A11.0794810.769610.9397810.09659.568181B9.728210.0332A11.0794810.8737410.9397810.14739.568182B9.728210.0333A11.112510.9067610.312410.208269.60123B9.72829.946647/16-2

23、4UNS240.631.0582A11.0845610.9016810.3962210.29979.824722B9.956810.21087/16-27UNS270.560.9412A11.0845610.9143810.4724210.380989.964422B10.083810.31247/16-28UNEF280.540.9072A11.0845610.9194610.4952810.4038410.002522B10.134610.33783A11.112510.94748.67232210.4546410.030463B10.134611.457947/16-32UN320.47

24、20.7842A11.087110.934710.5714810.4851210.142222B10.261610.43943A11.112510.960110.5968810.5333810.167623B10.261610.398760.51/2-13UNC131.1631.9541A12.661912.2478811.391911.2039410.259061B10.591811.023612.72A12.661912.3850411.391911.264910.335262B10.591811.02363A12.712.4231411.4311.3360210.373363B10.59

25、1810.881361/2-12UNS121.262.1172A12.6593612.369811.2852211.1480610.139682B10.41410.87123A12.712.4104411.3258611.2242610.180323B10.41410.726421/2-14UNS141.0811.8142A12.661912.4002811.4833411.3563410.50292B10.744211.12521/2-16UNS160.861.5882A12.6644412.4256811.633211.5138210.772142B10.972811.32843A13.2

26、0812.4612411.6687611.5798610.80773B10.972811.224261/2-18UNS180.8411.4112A12.6669812.44611.7500411.6382810.988042B11.17611.50621/2-20UNF200.7561.271A12.6669812.357111.8414811.6789212.527281B11.328411.60782A12.6669812.4612411.8414811.7322612.527282B11.328411.60783A12.712.4942611.874511.7932211.191243B

27、11.328411.523981/2-24UNS240.631.0582A12.6695212.4866411.9811811.8821211.409682B11.55711.8111/2-27UNS270.560.9412A12.6720612.5018812.0599211.9659411.551922B11.68411.91261/2-28UNEF280.540.9072A12.6720612.5069612.0827811.988811.590022B11.709411.9383A12.712.534912.1107212.039611.617963B11.709411.877041/

28、2-32UN320.4720.7842A12.674612.522212.1589812.0700811.729722B11.836412.03963A12.712.547612.1843812.1183411.755123B11.836411.986260.56259/16-12UNC121.262.1171A14.2468613.8099812.8727212.674611.727181B11.988812.44614.2882A14.2468613.957312.8727212.7406411.727182B11.988812.4463A14.287513.9979412.9133612

29、.814311.767823B11.988812.301229/16-14UNS141.0811.8142A14.249413.9877813.0708412.9438412.09042B12.31912.72549/16-16UN160.861.5882A14.2519414.0131813.220713.1013212.359642B12.57312.92863A14.287514.0487413.2562613.1673612.39523B12.57312.80169/16-18UNF180.8411.4111A14.2519413.919213.33513.1622812.5731B1

30、2.750813.0812A14.25981414.0309613.33513.220712.5732B12.750813.0813A14.287514.0665213.3705613.284212.608563B12.750812.969249/16-20UN200.7561.272A14.2544814.0487413.4289813.322312.743182B12.903213.2083A14.287514.0817613.46213.3807212.77623B12.903213.111489/16-24UNEF240.631.0582A14.2570214.0741413.5686

31、813.4696212.997182B13.131813.38583A14.287514.1046213.5991613.525513.027663B13.131813.319769/16-27UNS270.560.9412A14.2595614.0893813.6474213.5534413.139422B13.258813.48749/16-28UN280.540.9072A14.2595614.0944613.6702813.576313.177522B13.309613.51283A14.287514.122413.6982213.627113.205463B13.309613.464

32、549/16-32UN320.4720.7842A14.262114.109713.7464813.6575813.317222B13.436613.61443A14.287514.135113.7718813.7058413.342623B13.436613.573760.6255/8-11UNC111.3752.3091A15.8343615.3720814.3357614.1249413.086081B13.385813.868415.8752A15.8343615.5270214.3357614.1960613.086082B13.385813.86843A15.87515.56766

33、14.376414.2722613.126723B13.385813.693145/8-12UN121.262.1172A15.8343615.544814.4602214.3230613.314682B13.58914.04623A15.87515.5854414.5008614.3967213.355323B13.58913.876025/8-14UNS141.0811.8142A15.836915.5752814.6583414.528813.67792B13.919214.32565/8-16UN160.861.5882A15.8394415.6006814.808214.686281

34、3.947142B14.147814.50343A15.87515.6362414.8437614.7523213.98273B14.147814.381485/8-18UNF180.8411.4111A15.8394415.506714.922514.744714.16051B14.35114.68122A15.8394415.6184614.922514.8031214.16052B14.35114.68123A15.87515.6032214.9580614.8691614.196063B14.35114.55425/8-16UN200.7561.272A15.8419815.63624

35、15.0164814.9072614.330682B14.503414.78283A15.87515.6692615.049514.9682214.36373B14.503414.698985/8-24UNEF240.631.0582A15.8445215.6616415.1561815.0545814.584682B14.73214.9863A15.87515.6921215.1866615.1104614.615163B14.73214.907265/8-27UNS270.560.9412A15.8470615.6768815.2349215.138414.726922B14.85915.

36、08765/8-28UN280.540.9072A15.8470615.6819615.2577815.1612614.765022B14.884415.1133A15.87515.709915.2857215.214614.792963B14.884415.052045/8-32UN320.4720.7842A15.8470615.6946615.3314415.2414.902182B15.011415.21463A15.87515.722615.3593815.290814.930123B15.011415.161260.687511/16-12UN121.262.1172A17.421

37、8617.132316.0477215.9105614.902182B15.163815.62117.4633A17.462517.1729416.0883615.9842214.942823B15.163815.455911/16-16UN160.861.5882A17.4269417.1881816.395716.2737815.534642B15.74816.10363A17.462517.2237416.4312616.3398215.57023B15.74815.9613611/16-20UN200.7561.272A17.4294817.2237416.6039816.494761

38、5.918182B16.078216.3833A17.462517.2567616.63716.5557215.95123B16.078216.2864811/16-24UNEF240.631.0582A17.4320217.2491416.7436816.6420816.172182B16.306816.56083A9.842517.2796216.7741616.6979616.30683B16.306816.4947611/16-28UN280.540.9072A17.4345617.2694616.8452816.7487616.48462B16.484616.68783A17.462

39、517.297416.8732216.802116.48463B16.484616.6395411/16-32UN320.4720.7942A17.4345617.2821616.9189416.827516.489682B16.611616.78943A17.462517.310116.9468816.878316.517623B16.611616.748760.753/4-10UNC101.5132.541A19.0042818.5115217.3532817.1297615.979141B16.306816.840219.052A19.0042818.6766217.3532817.20

40、34215.979142B16.306816.84023A19.0518.7223417.39917.2872416.024863B16.306816.62433/4-12UN121.262.1172A19.0068218.7172617.6326817.4929816.487142B16.76417.22123A19.0518.7604417.6758617.5717216.530323B16.76417.035783/4-14UNS141.0811.8142A19.011918.7502817.8333417.703816.59892B17.094217.47523/4-16UNF160.

41、861.5881A19.011918.6512217.9806617.7901617.11961B17.322817.67842A19.011918.7731417.9806617.8536617.11962B17.322817.67843A19.0518.8112418.0187617.9222417.15773B17.322817.546323/4-18UNS180.8411.4112A19.0144418.7934618.326117.9806617.33552B17.52617.85623/4-20UNEF200.7561.272A19.0169818.8112418.1914818.

42、0797217.505682B17.678417.95783A19.0518.8442618.224518.1406817.53873B17.678417.873983/4-24UNEF240.631.0582A19.0195218.8366418.3311818.2270417.759682B17.90718.1613A19.0195218.8493418.4073818.3083217.899383B18.03418.26263/4-28UN280.540.9072A19.0195218.8544218.4302418.3337217.937482B18.059418.2883A19.05

43、18.884918.4607218.3870617.967963B18.059418.227043/4-32UN320.4720.7842A19.0220618.8696618.5064418.41518.077182B18.186418.38963A19.0518.897618.5343818.465818.105123B18.186418.336260.812513/16-10UNC101.5132.542A20.5917820.2641218.986518.8366417.612362B17.894318.427720.6383A20.637520.3098419.0322218.920

44、4617.520923B17.894318.427713/16-12UN121.262.1172A20.5943220.3047619.2201819.0804818.201642B18.338818.7963A20.637520.3479419.2633619.1592218.117823B18.338818.6156613/16-16UN160.861.5882A20.599420.3606419.5681619.443718.70712B18.92319.27863A20.637520.3987419.6062619.5148218.74523B18.92319.1338213/16-2

45、0UNEF200.7561.272A20.6044820.3987419.7789819.6672219.093182B19.253219.5583A20.637520.4317619.81219.7281819.12623B19.253219.4614813/16-28UN280.540.9072A20.6070220.4419220.0177419.9212219.524982B19.659619.86283A20.637520.421620.0482219.9745619.555463B19.659619.8145413/16-32UN320.4720.7842A20.6095620.4

46、571620.0939420.002519.664682B19.786619.96443A20.637520.485120.1218820.053319.692623B19.786619.923760.8757/8-9UNC91.682.8221A22.1767421.6484220.3428620.1015618.816321B19.17719.761222.2252A22.1767421.8236820.3428620.1828418.816322B19.17719.76123A22.22521.8719420.3911220.2717418.864583B19.17719.509747/

47、8-10UNS101.5132.542A22.1792821.8516220.5282820.3758819.156682B19.481820.01527/8-12UN121.262.1172A22.1818221.8922620.8076820.6679819.662142B19.93920.39623A22.22521.9354420.8508620.7467219.705323B19.93920.187927/8-14UNF141.0811.8141A22.1843621.7906621.005820.8000620.025361B20.269220.67562A22.1843621.9

48、227421.005820.8686420.025362B20.269220.67563A22.22521.9633821.0464420.942320.0663B20.269220.492727/8-16UN160.861.5882A22.186921.9481421.1556621.031220.0662B20.497820.85343A22.22521.9862421.1937621.1023220.33273B20.497820.721327/8-18UNS180.8411.4112A22.1894421.9684621.272521.1556620.51052B20.70121.03

49、127/8-20UNEF200.7561.272A22.1919821.9862421.3664821.2547220.680682B20.853421.13283A22.22522.0192621.399521.3156820.71373B20.853421.048987/8-24UNS240.631.0582A22.1945222.0116421.5061821.4020420.934682B21.08221.3367/8-27UNS270.560.9412A22.1945222.0243421.5823821.4833221.074382B21.20921.43767/8-28UN280

50、.540.9072A22.1945222.0294221.6052421.5087221.112482B21.234421.4633A22.22522.059921.6357221.5620621.142963B21.234421.402047/8-32UN320.4720.7842A22.1970622.0446621.6814421.5921.252182B21.361421.56463A22.22522.072621.7093821.640821.280123B21.361421.511260.937515/16-9UNC91.682.8222A23.7693223.4162621.93

51、54421.7754220.40892B22.136121.348723.8133A23.812523.4594421.9786221.8592420.452083B22.136121.0972415/16-12UN121.262.1172A23.7693223.4797622.3951822.250421.249642B21.513821.9713A23.812523.5229422.4383622.3342221.292823B21.513821.780515/16-16UN160.861.5882A23.774423.5356422.7431622.6161621.88212B22.09

52、822.45363A23.812523.5737422.7812622.6872821.92023B22.09822.3088215/16-20UNEF200.7561.272A23.7769423.571222.9514422.8371422.265642B22.428222.7333A23.812523.6067622.98722.9006422.30123B22.428222.6364815/16-28UN280.540.9072A23.7820223.6169223.1927423.0911422.699982B22.834623.03783A23.812523.647423.2232

53、223.1470222.730463B22.834622.9895415/16-32UN320.4720.7842A23.7845623.6321623.2689423.1724222.839682B22.961623.13943A23.812523.660123.2968823.2257622.867623B22.961623.0987611-8UNC81.893.1751A25.349224.777723.2867223.0301821.569681B21.97122.60625.42A25.349224.968223.2867223.11421.569682B21.97122.6063A

54、25.425.01923.3375223.2079821.620483B21.97122.344381-8-10UNS101.5132.542A25.3542825.0266223.7032823.545822.331682B22.656823.19027/8-12UN121.262.1171A25.3542824.917423.9039423.7566222.83461B23.11423.57122A25.3542825.0647223.9039423.8302822.83462B23.11423.57123A25.425.1104424.0258623.914122.880323B23.8

55、7623.362921-8-14UNF141.0811.8141A25.3568224.9656624.1782623.964923.195281B23.444223.82522A25.3568225.095224.1782624.0360223.195282B23.444223.82523A25.425.1383824.2214424.1147623.238463B23.444223.66017/8-16UN160.861.5882A25.361925.1231424.3306624.2036623.46962B23.672824.02843A25.425.1612424.3687624.2

56、747823.50773B23.672823.896321-8-18UNS180.8411.4112A25.3644425.1434624.447524.3281223.68552B23.87624.20621-8-20UNEF200.7561.272A25.3644425.158725.3009424.4246423.853142B24.028424.30783A25.425.1942624.574524.4881423.88873B24.028424.223981-8-24UNS240.631.0582A25.3669825.184124.6786424.5719624.107142B24

57、.25724.5111-8-27UNS270.560.9412A25.3695225.1993424.7573824.6557824.249382B24.38424.61261-8-28UN280.540.9072A25.3695225.2044224.7802424.6786424.287482B 24.409424.6383A25.425.234924.8107224.7345224.317963B24.409424.577041-8-32UN320.4720.7842A25.3720625.2196624.8564424.7599224.427182B24.536424.73963A25

58、.425.247624.8843824.8132624.455123B24.536424.686261.06251-1/16UNC81.893.1752A26.936726.555724.1858824.0131621.43762B23.152123.787126.7881-1/16UN2A26.936726.555724.8742224.7015231571.82B23.545824.18083A26.987526.606524.9250224.7954823.207983B23.545823.931881-1/16-12UN121.262.1172A26.9443226.6547625.5

59、701825.425424.424642B24.688825.1463A26.987526.6979425.6133625.5066824.467823B24.688824.950421-1/16-16UNC160.861.5882A26.949426.7106425.9181625.7911625.05712B25.27325.62863A26.987526.7487425.9562625.8622825.09523B25.27325.483821-1/16-18UNEF180.8411.4112A26.9519426.7309626.03525.9156225.2732B25.450825

60、.7813A26.987526.7665226.0705625.9791225.308563B25.450825.66671-1/16-20UN200.7561.272A26.9519426.746226.1264426.0121425.440642B25.603225.9083A26.987526.7817626.16226.0756425.47623B25.603225.811481-1/16-28UN280.540.9072A26.9570226.7919226.3677426.2661425.874982B26.009626.21283A26.987526.822426.3982226