美制螺纹对照表

1、美 制 螺 纹 尺 寸 表 单位： mm外 螺 纹内 螺 纹公称直径螺纹规格牙 数牙 高螺 距 螺纹 外径螺纹 中径螺纹小径公差 代号螺纹 小径螺纹 中径螺纹外径钻孔MaxMinMaxMinMaxMinMaxMinMaxMin直径0.073 (#1) 1.8541-64UNC640.2360.3972A1.838961.742441.582421.531621.366522B1.424941.582421.597661.66371.85421.3971.85421.757681.597661.559561.381761.424941.582421.597661.645921.85421.397

2、1-72UNF0.210.3532A1.838961.750061.610361.56211.419862B1.47321.61291.62561.68911.85421.51131.85421.76531.62561.590041.43511.47321.61291.62561.673861.85421.51130.086(#2) 2.1842-56UNC0.2710.4542A2.169162.065021.874521.821181.630682B1.694181.871981.889761.960882.18441.70182.18442.080261.889761.849121.64

3、5921.694181.871981.889761.94312.18441.70182-64UNF640.2360.3972A2.169162.072641.912621.861821.696722B1.755141.912621.927861.996442.18441.7782.18442.087881.927861.889761.711961.755141.912621.927861.978662.18441.7780.099(3#) 2.5153-48UNC480.3150.5292A2.496822.382522.153922.09551.864362B1.940562.14632.1

4、7172.24792.51461.99392.51462.40032.17172.128521.882141.940562.14632.17172.227582.51461.99393-56UNF0.2710.4542A2.496822.392682.202182.14631.958342B2.024382.19712.219962.291082.51462.05742.51462.410462.219962.179321.976122.024382.19712.219962.27332.51462.05740.112(#4) 2.8454-40UNC400.3780.6352A2.82448

5、2.694942.4132.34952.067562B2.156462.385062.433322.517142.84482.18442.84482.715262.433322.385062.087882.156462.385062.433322.494282.84482.18444-48UNF480.3150.5292A2.827022.712722.484122.423162.194562B2.270762.458722.50192.580642.84482.26062.84482.73052.50192.456182.212342.270762.458722.50192.560322.8

6、4482.26060.125(#5) 3.1755-40UNC400.3780.6352A3.154683.025142.74322.677162.397762B2.486662.697482.763522.847343.1752.52733.1753.045462.763522.715262.418082.486662.697482.763522.827023.1752.52735-44UNF440.3440.5772A3.157223.03532.78132.71782.468882B2.550162.740662.799082.880363.1752.57813.1753.053082.

7、799082.750822.486662.550162.740662.545082.860043.1752.57810.138(#6) 3.5056-32UNC0.4720.7942A3.484883.332482.969262.898142.542B2.64162.89562.989583.083563.50522.70513.50523.35282.989582.936242.560322.64162.89562.989583.058163.50522.70516-40UNF400.3780.6352A3.484883.355343.07343.007362.727962B2.81943.

8、02263.093723.180083.50522.87023.50523.375663.093723.042922.748282.81943.012443.093723.157223.50522.87020.164 (#8)8-32UNC0.4720.7842A4.142743.990343.627123.553463.197862B3.3023.53063.649983.74654.16563.45444.1664.16564.01323.649983.59413.220723.3023.528063.649983.72114.16563.45448-36UNF0.4210.7062A4.

9、145284.005583.688083.616963.304542B3.40363.60683.70843.799844.16563.45444.16564.02593.70843.655063.324863.40363.596643.70843.776984.16563.45440.19 (#10) 4.82610-24UNC240.631.0582A4.80064.617724.112264.028443.540762B3.6833.96244.137664.246884.8263.73384.8264.643124.137664.074163.566163.6833.94974.137

10、664.218944.8263.733810-28UNS280.540.9072A4.80064.63554.211324.12753.718562B3.83544.0644.236724.345944.8263.860810-32UNF0.4720.7842A4.803144.650744.287524.211323.858262B3.96244.16564.310384.409444.8263.98784.8264.67364.310384.251963.881123.96244.168144.310384.384044.8263.987810-36UNS0.4210.7062A4.803

11、144.663444.345944.269743.96242B4.0644.21644.36884.467864.8264.038610-40UNS400.3780.6352A4.803144.67364.391664.3184.043682B4.14024.29264.414524.50854.8264.089410-48UNS480.3150.5292A4.805684.691384.462784.396744.175762B4.24184.36884.48314.569464.8264.216410-56UNS0.2710.4542A4.808224.704084.513584.4500

12、84.269742B4.34344.4454.531364.612644.8264.30530.216 (#12) 0.48612-24UNC240.631.0582A5.4615.278124.772664.68634.201162B4.34344.59744.798064.909825.48644.49585.48645.303524.798064.732024.226564.34344.589784.798064.881885.48644.495812-28UNF280.540.9072A5.4615.29594.871724.790444.378962B4.49584.72444.89

13、7125.00385.48644.5725.48645.32134.897124.836164.404364.49584.716784.897124.975865.48644.57212-32UNEF0.4720.7842A5.463545.311144.947924.869184.518662B4.62284.8264.970785.074925.48644.5725.48645.3344.970784.909824.541524.62284.81334.970785.049525.48644.57212-36UNS0.4210.7062A5.463545.323845.006344.930

14、144.879342B4.72444.87685.02925.128265.48644.800612-40UNS400.3780.6352A5.463545.3345.052064.97844.66092B4.80064.9535.074925.16895.48644.851412-48UNS480.3150.5292A5.466085.351785.123185.057144.836162B4.90225.02925.14355.229865.48644.978412-56UNS0.2710.4542A5.468625.364485.173985.110484.930142B5.00385.

15、10545.191765.273045.48644.97840.256.351/4-20UNC200.7561.276.322066.012185.496565.354324.810764.97845.25785.52455.709926.355.10542A6.322066.116325.496565.402584.810762B4.97845.25785.52455.648966.355.10546.356.144265.52455.453384.83874.97845.250185.52455.615946.355.10541/4-24UNS240.631.0582A6.322066.1

16、39185.633725.539745.062222B5.2075.4615.661665.783586.355.30861/4-27UNS270.560.9412A6.32466.154425.712465.623565.204462B5.3345.56265.737865.852166.355.41021/4-28UNF280.540.9076.32466.075685.735325.608325.242565.35945.5885.760725.925826.355.41022A6.32466.15955.735325.65155.242562B5.35945.5886.827525.8

17、69946.355.41026.356.18495.760725.697225.267965.35945.56266.827525.8426.355.41021/4-32UNEF0.4720.7842A6.32466.17225.808985.72775.379722B5.48645.68965.834385.941066.355.554986.355.68965.834385.773425.405125.48645.661665.834385.913126.355.554981/4-36UNS0.4210.7062A6.327146.187445.869945.79125.488942B5.

18、5885.74045.89285.99446.355.61341/4-40UNS400.3780.6352A6.327146.19765.915665.8425.570222B5.66425.81665.938526.035046.355.79121/4-48UNS480.3150.5292A6.329686.215385.986785.91825.697222B5.76585.89286.00716.098546.355.79121/4-56UNS0.2710.5452A6.329686.225546.035045.9695.79122B5.86745.9696.055366.139186.

19、355.94360.3125 7.93755/16-18UNC0.8411.4117.907027.574286.990086.835146.228086.40086.7317.020567.221227.93756.52782A7.907027.686046.990086.888486.228082B6.40086.7317.020567.155187.93756.52787.93757.716527.020566.944366.258566.40086.68027.020567.119627.93756.52785/16-20UN200.7561.272A7.907027.701287.0

20、81526.979926.395722B6.55326.8587.1127.244087.93756.746247.93757.731767.1127.03586.42626.55326.80727.1127.211067.93756.746245/16-24240.631.05879095.67.635247.221227.081526.649726.78187.03587.249167.42957.93756.90882A7.909567.726687.221227.127246.649722B6.78187.03587.249167.371087.93756.90887.93757.75

21、4627.249167.180586.677666.78186.995167.249167.34067.93756.90885/8-27UNS270.560.9412A7.91217.741927.299967.211066.791962B6.90887.13747.249167.439667.93757.03585/8-28UN280.540.9072A7.91217.7477.322827.236466.830062B6.95967.16287.348227.459987.93757.03587.93757.77247.348227.282186.855466.95967.129787.3

22、48227.432047.93757.03585/8-32UNEF0.4720.7842A7.91217.75977.31527.31526.967222B7.08667.26447.421887.528567.93757.142487.93757.78517.360927.360926.992627.08667.231387.421887.500627.93757.142485/8-36UNS0.4210.7062A7.914647.774947.457445.32137.07392B7.16287.34067.48037.58197.93757.142485/8-40UNS400.3780

23、.6352A7.914647.78517.503167.42957.157722B7.2397.39147.526027.622547.93757.3665/8-48UNS40.3120.3150.5292A7.917187.802887.574287.50577.287262B7.3667.4937.59467.686047.93757.3660.3258.2553/8-16UNC0.8411.4119.491989.13138.460748.295647.599687.79788.15348.493768.709669.5257.93752A9.491989.253228.460748.3

24、48987.599682B7.79788.15348.493768.638549.5257.93759.5259.286248.493768.409947.63277.79788.082288.493768.602989.5257.93753/8-18UNS0.8411.4112A9.491989.2718.575048.465827.813042B8.0018.33128.608068.75039.5258.02643/8-20UN200.7561.272A9.494529.288788.669028.564887.983222B8.15348.43288.69958.836669.5258

25、.333749.5259.319268.69958.620768.01378.15348.374388.69958.69959.5258.333743/8-24UNF240.631.0589.497069.222748.808728.663948.237228.3828.6368.836668.836669.5258.43282A9.497069.314188.808728.71228.237222B8.3828.6368.836668.961129.5258.43289.5259.342128.836668.7638.265168.3829.44888.836668.513069.5258.

26、43283/8-27UNS270.560.9412A9.497069.326888.884928.793488.376922B8.5098.73768.912869.032249.5258.61063/8-28UN280.540.9072A9.497069.331968.907788.816348.415022B8.53448.7638.935729.052569.5258.61069.5259.35998.935728.867148.442968.53448.702048.935729.024629.5258.61063/8-32UNEF0.4720.7842A8.569969.34728.

27、983988.897628.554722B8.66148.86469.009389.121149.5258.83929.5259.37269.009388.945888.580128.66148.811269.009389.09329.5258.83923/8-36UNS0.4210.7062A9.49969.35999.04248.961128.658862B8.7638.94089.06789.174489.5258.83923/8-40UNC400.3780.6352A9.502149.37269.090669.011928.745222B8.83928.99169.113529.215

28、129.5258.83920.39 9.9060.390-27UNS270.560.9412A9.878069.707889.265929.174488.757922B8.899.11869.293869.413249.9068.83920.4375 11.117/16-14UNC1.0811.81411.076910.68329.898389.718048.917949.1449.55049.9339410.167611.11259.34722A11.076910.81539.898389.7798.917942B9.1449.55049.9339410.088911.11259.34721

29、1.112510.85099.933949.845048.95359.1449.441189.9339410.050811.11259.34727/16-16UNS0.861.5882A11.076910.838210.04579.928869.184642B9.3989.753610.081310.231111.11259.575811.066810.873710.08139.99499.22029.3989.65210.081310.195611.11259.57587/16-18UNS0.8411.4112A11.079510.858510.162510.05339.400542B9.5

30、7589.90610.195610.337811.11259.80447/16-20UNF200.7561.2711.079510.769610.939810.09659.568189.728210.03310.28710.492711.06689.921242A11.079510.873710.939810.14739.568182B9.728210.03310.28710.424211.06689.9212411.112510.906810.312410.20839.60129.72829.9466410.28710.391111.06689.921247/16-24UNS240.631.

31、0582A11.084610.901710.396210.29979.824722B9.956810.210810.424210.548611.066810.08387/16-27UNS270.560.9412A11.084610.914410.472410.3819.964422B10.083810.312410.500410.619711.112510.26167/16-28UNEF280.540.9072A11.084610.919510.495310.403810.00252B10.134610.337810.523210.640111.112510.261611.112510.947

32、48.6723210.454610.030510.134611.457910.523210.612111.112510.26167/16-32UN0.4720.7842A11.087110.934710.571510.485110.14222B10.261610.439410.596910.708611.112510.261611.112510.960110.596910.533410.167610.261610.398810.596910.680711.112510.26160.512.71/2-13UNC1.1631.95412.661912.247911.391911.203910.25

33、9110.591811.023611.4311.676412.710.71632A12.661912.38511.391911.264910.33532B10.591811.023611.4311.595112.710.716312.712.423111.4311.33610.373410.591810.881411.4311.551912.710.71631/2-12UNS1.262.1172A12.659412.369811.285211.148110.13972B10.41410.871211.325911.503712.710.716312.712.410411.325911.2243

34、10.180310.41410.726411.325911.457912.710.71631/2-14UNS1.0811.8142A12.661912.400311.483311.356310.50292B10.744211.125211.521411.686512.710.71631/2-16UNS0.861.5882A12.664412.425711.633211.513810.77212B10.972811.328411.668811.823712.711.112513.20812.461211.668811.579910.807710.972811.224311.668811.7856

35、12.711.11251/2-18UNS0.8411.4112A12.66712.44611.7511.638310.9882B11.17611.506211.783111.930412.711.11251/2-20UNF200.7561.2712.66712.357111.841511.678912.527311.328411.607811.874512.087912.711.50872A12.66712.461211.841511.732312.52732B11.328411.607811.874512.016712.711.508712.712.494311.874511.793211.

36、191211.328411.52411.874511.981212.711.50871/2-24UNS240.631.0582A12.669512.486611.981211.882111.40972B11.55711.81112.011712.141212.711.50871/2-27UNS270.560.9412A12.672112.501912.059911.965911.55192B11.68411.912612.087912.209812.711.9051/2-28UNEF280.540.9072A12.672112.50712.082811.988811.592B11.709411

37、.93811.93812.232612.711.90512.712.534912.110712.039611.61811.709411.87712.110712.202212.711.9051/2-32UN0.4720.7842A12.674612.522212.15912.070111.72972B11.836412.039612.184412.298712.711.90512.712.547612.184412.118311.755111.836411.986312.184412.270712.711.9050.5625 14.2889/16-12UNC1.262.11714.246913

38、.8112.872712.674611.727211.988812.44612.913413.172414.287512.30382A14.246913.957312.872712.740611.72722B11.988812.44612.913414.008614.287512.303814.287513.997912.913412.814311.767811.988812.301212.913413.045414.287512.30389/16-14UNS1.0811.8142A14.249413.987813.070812.943812.09042B12.31912.725413.108

39、913.27414.287512.30389/16-16UN0.861.5882A14.251914.013213.220713.101312.35962B12.57312.928613.256313.411214.287512.714.287514.048713.256313.167412.395212.57312.801613.256313.373114.287512.79/16-18UNF0.8411.41114.251913.919213.33513.162312.57312.750813.08113.370613.596614.287513.09622A14.259814.03113

40、.33513.220712.5732B12.750813.08113.370613.520414.287513.096214.287514.066513.370613.284212.608612.750812.969213.370613.482314.287513.09629/16-20UN200.7561.272A14.254514.048713.42913.322312.74322B12.903213.20813.46213.601714.287513.096214.287514.081813.46213.380712.776212.903213.111513.46213.566114.2

41、87513.09629/16-24UNEF240.631.0582A14.25714.074113.568713.469612.99722B13.131813.385813.599213.728714.287513.096214.287514.104613.599213.525513.027713.131813.319813.599213.695714.287513.09629/16-27UNS270.560.9412A14.259614.089413.647413.553413.13942B13.258813.487413.675413.797314.287513.49259/16-28UN

42、280.540.9072A14.259614.094513.670313.576313.17752B13.309613.512813.698213.820114.287513.492514.287514.122413.698213.627113.205513.309613.464513.698213.789714.287513.49259/16-32UN0.4720.7842A14.262114.109713.746513.657613.31722B13.436613.614413.771913.886214.287513.492514.287514.135113.771913.705813.

43、342613.436613.573813.771913.858214.287513.49250.62515.8755/8-11UNC1.3752.30915.834415.372114.335814.124913.086113.385813.868414.376414.648215.87513.49252A15.834415.52714.335814.196113.08612B13.385813.868414.376414.559315.87513.492515.87515.567714.376414.272313.126713.385813.693114.376414.513615.8751

44、3.49255/8-12UN1.262.1172A15.834415.544814.460214.323113.31472B13.58914.046214.500914.681215.87513.891315.87515.585414.500914.396713.355313.58913.87614.500914.635515.87513.89135/8-14UNS1.0811.8142A15.836915.575314.658314.528813.67792B13.919214.325614.696414.864615.87513.89135/8-16UN0.861.5882A15.8394

45、15.600714.808214.686313.94712B14.147814.503414.843815.001215.87514.287515.87515.636214.843814.752313.982714.147814.381514.843814.960615.87514.28755/8-18UNF0.8411.41115.839415.506714.922514.744714.160514.35114.681214.958115.189215.87514.68372A15.839415.618514.922514.803114.16052B14.35114.681214.95811

46、5.110515.87514.683715.87515.603214.958114.869214.196114.35114.554214.958115.072415.87514.68375/8-16UN200.7561.272A15.84215.636215.016514.907314.33072B14.503414.782815.049515.191715.87514.683715.87515.669315.049514.968214.363714.503414.69915.049515.156215.87514.68375/8-24UNEF240.631.0582A15.844515.66

47、1615.156215.054614.58472B14.73214.98615.186715.318715.87514.683715.87515.692115.186715.110514.615214.73214.907315.186715.285715.87514.68375/8-27UNS270.560.9412A15.847115.676915.234915.138414.72692B14.85915.087615.262915.389915.87515.085/8-28UN280.540.9072A15.847115.68215.257815.161314.7652B14.884415

48、.11315.285715.410215.87515.0815.87515.709915.285715.214614.79314.884415.05215.285715.379715.87515.085/8-32UN0.4720.7842A15.847115.694715.331415.2414.90222B15.011415.214615.359415.476215.87515.0815.87515.722615.359415.290814.930115.011415.161315.359415.448315.87515.0810.6875 17.463111/16-12UN1.262.11

49、72A17.421917.132316.047715.910614.90222B15.163815.62116.088416.268717.462515.476217.462517.172916.088415.984214.942815.163815.455916.088416.22317.462515.476211/16-16UN0.861.5882A17.426917.188216.395716.273815.53462B15.74816.103616.431316.588717.462515.87517.462517.223716.431316.339815.570215.74815.9

50、61416.431316.548117.46251.587511/16-20UN200.7561.272A17.429517.223716.60416.494815.91822B16.078216.38316.63716.779217.462516.271217.462517.256816.63716.555715.951216.078216.286516.63716.743717.462516.27121/16-24UNEF240.631.0582A17.43217.249116.743716.642116.17222B16.306816.560816.494816.906217.46251

51、6.27129.842517.279616.774216.69816.306816.306816.494816.774216.873217.462516.271211/16-28UN280.540.9072A17.434617.269516.845316.748816.48462B16.484616.687816.873216.997717.462516.667517.462517.297416.873216.802116.484616.484616.639516.873216.967217.462516.667511/16-32UN0.4720.7942A17.434617.282216.9

52、18916.827516.48972B16.611616.789416.946917.063717.462516.667517.462517.310116.946916.878316.517616.611616.748816.946917.035817.462516.66750.7519.053/4-10UNC1.5132.5419.004318.511517.353317.129815.979116.306816.840217.39917.691119.0516.66752A19.004318.676617.353317.203415.97912B16.306816.840217.39917

53、.594619.0516.667519.0518.722317.39917.287216.024916.306816.624317.39917.543819.0516.66753/4-12UN1.262.1172A19.006818.717317.632717.49316.48712B16.76417.221217.675917.858719.0517.066319.0518.760417.675917.571716.530316.76417.035817.675917.81319.0517.06633/4-14UNS1.0811.8142A19.011918.750317.833317.70

54、3816.59892B17.094217.475217.871418.041619.0517.06633/4-16UNF0.861.58819.011918.651217.980717.790217.119617.322817.678418.018818.267719.0517.46252A19.011918.773117.980717.853717.11962B17.322817.678418.018818.183919.0517.462519.0518.811218.018817.922217.157717.322817.546318.018818.143219.0517.46253/4-

55、18UNS0.8411.4112A19.014418.793518.326117.980717.33552B17.52617.856218.133118.285519.0517.46253/4-20UNEF200.7561.272A19.01718.811218.191518.079717.50572B17.678417.957818.224518.369319.0517.858719.0518.844318.224518.140717.538717.678417.87418.224518.333719.0517.85873/4-24UNEF240.631.0582A19.019518.836

56、618.331218.22717.75972B17.90718.16118.361718.496319.0517.858719.019518.849318.407418.308317.899418.03418.262618.437918.567419.0517.85873/4-28UN280.540.9072A19.019518.854418.430218.333717.93752B18.059418.28818.460718.587719.0518.25519.0518.884918.460718.387117.96818.059418.22718.460718.554719.0518.25

57、53/4-32UN0.4720.7842A19.022118.869718.506418.41518.07722B18.186418.389618.534418.653819.0518.25519.0518.897618.534418.465818.105118.186418.336318.534418.625819.0518.25510.8125120.63813/16-10UNC1.5132.542A20.591820.264118.986518.836617.61242B17.894318.427718.986519.278620.637518.25520.637520.309819.0

58、32218.920517.520917.894318.427718.986519.182120.637518.25513/16-12UN1.262.1172A20.594320.304819.220219.080518.20162B18.338818.79619.263419.446220.637518.653820.637520.347919.263419.159218.117818.338818.615719.263419.400520.637518.653813/16-16UN0.861.5882A20.599420.360619.568219.443718.70712B18.92319

59、.278619.606319.766320.637519.0520.637520.398719.606319.514818.745218.92319.133819.606319.725620.637519.053/16-20UNEF200.7561.272A20.604520.398719.77919.667219.09322B19.253219.55819.81219.956820.637519.446220.637520.431819.81219.728219.126219.253219.461519.81219.921220.637519.446213/16-28UN280.540.90

60、72A20.60720.441920.017719.921219.5252B19.659619.862820.048220.175220.637519.842520.637520.421620.048219.974619.555519.659619.814520.048220.142220.637519.842513/16-32UN0.4720.7842A20.609620.457220.093920.002519.66472B19.786619.964420.121920.241320.637519.842520.637520.485120.121920.053319.692619.7866