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1、美制螺纹尺寸表单位：m m外 螺 纹内 螺 纹公称 直径螺纹 规格牙 数牙 高螺 距公差 代号螺纹 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) 1.8541-64UNC640.2360.3972A1.838961.742441.582421.531621.366522B1.424941.582421.597661.66371.85421.3973A1.85421.757681.597661.559561.381763B1.424941.582421.597661.645921.85421.3
2、971-72UNF720.210.3532A1.838961.750061.610361.56211.419862B1.47321.61291.62561.68911.85421.51133A1.85421.76531.62561.590041.43513B1.47321.61291.62561.673861.85421.51130.086(#2) 2.1842-56UNC560.2710.4542A2.169162.065021.874521.821181.630682B1.694181.871981.889761.960882.18441.70183A2.18442.080261.8897
3、61.849121.645923B1.694181.871981.889761.94312.18441.70182-64UNF640.2360.3972A2.169162.072641.912621.861821.696722B1.755141.912621.927861.996442.18441.7783A2.18442.087881.927861.889761.711963B1.755141.912621.927861.978662.18441.7780.099(3#) 2.5153-48UNC480.3150.5292A2.496822.382522.153922.09551.86436
4、2B1.940562.14632.17172.24792.51461.99393A2.51462.40032.17172.128521.882143B1.940562.14632.17172.227582.51461.99393-56UNF560.2710.4542A2.496822.392682.202182.14631.958342B2.024382.19712.219962.291082.51462.05743A2.51462.410462.219962.179321.976123B2.024382.19712.219962.27332.51462.05740.112(#4) 2.845
5、4-40UNC400.3780.6352A2.824482.694942.4132.34952.067562B2.156462.385062.433322.517142.84482.18443A2.84482.715262.433322.385062.087883B2.156462.385062.433322.494282.84482.18444-48UNF480.3150.5292A2.827022.712722.484122.423162.194562B2.270762.458722.50192.580642.84482.26063A2.84482.73052.50192.456182.2
6、12343B2.270762.458722.50192.560322.84482.26060.125(#5) 3.1755-40UNC400.3780.6352A3.154683.025142.74322.677162.397762B2.486662.697482.763522.847343.1752.52733A3.1753.045462.763522.715262.418083B2.486662.697482.763522.827023.1752.52735-44UNF440.3440.5772A3.157223.03532.78132.71782.468882B2.550162.7406
7、62.799082.880363.1752.57813A3.1753.053082.799082.750822.486663B2.550162.740662.545082.860043.1752.57810.138(#6) 3.5056-32UNC320.4720.7942A3.484883.332482.969262.898142.542B2.64162.89562.989583.083563.50522.70513A3.50523.35282.989582.936242.560323B2.64162.89562.989583.058163.50522.70516-40UNF400.3780
8、.6352A3.484883.355343.07343.007362.727962B2.81943.02263.093723.180083.50522.87023A3.50523.375663.093723.042922.748283B2.81943.012443.093723.157223.50522.870210.164(#8) 4.1668-32UNC320.4720.7842A4.142743.990343.627123.553463.197862B3.3023.53063.649983.74654.16563.45443A4.16564.01323.649983.59413.2207
9、23B3.3023.528063.649983.72114.16563.45448-36UNF360.4210.7062A4.145284.005583.688083.616963.304542B3.40363.60683.70843.799844.16563.45443A4.16564.02593.70843.655063.324863B3.40363.596643.70843.776984.16563.45440.19(#10) 4.82610-24UNC240.631.0582A4.80064.617724.112264.028443.540762B3.6833.96244.137664
10、.246884.8263.73383A4.8264.643124.137664.074163.566163B3.6833.94974.137664.218944.8263.733810-28UNS280.540.9072A4.80064.63554.211324.12753.718562B3.83544.0644.236724.345944.8263.860810-32UNF320.4720.7842A4.803144.650744.287524.211323.858262B3.96244.16564.310384.409444.8263.98783A4.8264.67364.310384.2
11、51963.881123B3.96244.168144.310384.384044.8263.987810-36UNS360.4210.7062A4.803144.663444.345944.269743.96242B4.0644.21644.36884.467864.8264.038610-40UNS400.3780.6352A4.803144.67364.391664.3184.043682B4.14024.29264.414524.50854.8264.089410-48UNS480.3150.5292A4.805684.691384.462784.396744.175762B4.241
12、84.36884.48314.569464.8264.216410-56UNS560.2710.4542A4.808224.704084.513584.450084.269742B4.34344.4454.531364.612644.8264.30530.216(#12) 0.48612-24UNC240.631.0582A5.4615.278124.772664.68634.201162B4.34344.59744.798064.909825.48644.49583A5.48645.303524.798064.732024.226563B4.34344.589784.798064.88188
13、5.48644.495812-28UNF280.540.9072A5.4615.29594.871724.790444.378962B4.49584.72444.897125.00385.48644.5723A5.48645.32134.897124.836164.404363B4.49584.716784.897124.975865.48644.57212-32UNEF320.4720.7842A5.463545.311144.947924.869184.518662B4.62284.8264.970785.074925.48644.5723A5.48645.3344.970784.9098
14、24.541523B4.62284.81334.970785.049525.48644.57212-36UNS360.4210.7062A5.463545.323845.006344.930144.879342B4.72444.87685.02925.128265.48644.800612-40UNS400.3780.6352A5.463545.3345.052064.97844.66092B4.80064.9535.074925.16895.48644.851412-48UNS480.3150.5292A5.466085.351785.123185.057144.836162B4.90225
15、.02925.14355.229865.48644.978412-56UNS560.2710.4542A5.468625.364485.173985.110484.930142B5.00385.10545.191765.273045.48644.97840.25” 6.351/4-20UNC200.7561.271A6.322066.012185.496565.354324.810761B4.97845.25785.52455.709926.355.10542A6.322066.116325.496565.402584.810762B4.97845.25785.52455.648966.355
16、.10543A6.356.144265.52455.453384.83873B4.97845.250185.52455.615946.355.10541/4-24UNS240.631.0582A6.322066.139185.633725.539745.062222B5.2075.4615.661665.783586.355.30861/4-27UNS270.560.9412A6.32466.154425.712465.623565.204462B5.3345.56265.737865.852166.355.41021/4-28UNF280.540.9071A6.32466.075685.73
17、5325.608325.242561B5.35945.5885.760725.925826.355.41022A6.32466.15955.735325.65155.242562B5.35945.5886.827525.869946.355.410223A6.356.18495.760725.697225.267963B5.35945.56266.827525.8426.355.41021/4-32UNEF320.4720.7842A6.32466.17225.808985.72775.379722B5.48645.68965.834385.941066.355.554983A6.355.68
18、965.834385.773425.405123B5.48645.661665.834385.913126.355.554981/4-36UNS360.4210.7062A6.327146.187445.869945.79125.488942B5.5885.74045.89285.99446.355.61341/4-40UNS400.3780.6352A6.327146.19765.915665.8425.570222B5.66425.81665.938526.035046.355.79121/4-48UNS480.3150.5292A6.329686.215385.986785.91825.
19、697222B5.76585.89286.00716.098546.355.79121/4-56UNS560.2710.5452A6.329686.225546.035045.9695.79122B5.86745.9696.055366.139186.355.94360.3125 7.93755/16-18UNC180.8411.4111A7.907027.574286.990086.835146.228081B6.40086.7317.020567.221227.93756.52782A7.907027.686046.990086.888486.228082B6.40086.7317.020
20、567.155187.93756.52783A7.93757.716527.020566.944366.258563B6.40086.68027.020567.119627.93756.52785/16-20UN200.7561.272A7.907027.701287.081526.979926.395722B6.55326.8587.1127.244087.93756.746243A7.93757.731767.1127.03586.42623B6.55326.80727.1127.211067.93756.746245/16-24240.631.058lA79095.67.635247.2
21、21227.081526.649721B6.78187.03587.249167.42957.93756.90882A7.909567.726687.221227.127246.649722B6.78187.03587.249167.371087.93756.90883A7.93757.754627.249167.180586.677663B6.78186.995167.249167.34067.93756.90885/8-27UNS270.560.9412A7.91217.741927.299967.211066.791962B6.90887.13747.249167.439667.9375
22、7.03585/8-28UN280.540.9072A7.91217.7477.322827.236466.830062B6.95967.16287.348227.459987.93757.03583A7.93757.77247.348227.282186.855463B6.95967.129787.348227.432047.93757.03585/8-32UNEF320.4720.7842A7.91217.75977.31527.31526.967222B7.08667.26447.421887.528567.93757.142483A7.93757.78517.360927.360926
23、.992623B7.08667.231387.421887.500627.93757.142485/8-36UNS360.4210.7062A7.914647.774947.457445.32137.07392B7.16287.34067.48037.58197.93757.142485/8-40UNS400.3780.6352A7.914647.78517.503167.42957.157722B7.2397.39147.526027.622547.93757.3665/8-48UNS40.310.3150.5292A7.917187.802887.574287.50577.287262B7
24、.3667.4937.59467.686047.93757.3660.325 8.2553/8-16UNC180.8411.4111A9.491989.13138.460748.295647.599681B7.79788.15348.493768.709669.5257.93752A9.491989.253228.460748.348987.599682B7.79788.15348.493768.638549.5257.93753A9.5259.286248.493768.409947.63273B7.79788.082288.493768.602989.5257.93753/8-18UNS1
25、80.8411.4112A9.491989.2718.575048.465827.813042B8.0018.33128.608068.75039.5258.02643/8-20UN200.7561.272A9.494529.288788.669028.564887.983222B8.15348.43288.69958.836669.5258.333743A9.5259.319268.69958.620768.01373B8.15348.374388.69958.69959.5258.333743/8-24UNF240.631.0581A9.497069.222748.808728.66394
26、8.237221B8.3828.6368.836668.836669.5258.432832A9.497069.314188.808728.71228.237222B8.3828.6368.836668.961129.5258.43283A9.5259.342128.836668.7638.265163B8.3829.44888.836668.513069.5258.43283/8-27UNS270.560.9412A9.497069.326888.884928.793488.376922B8.5098.73768.912869.032249.5258.61063/8-28UN280.540.
27、9072A9.497069.331968.907788.816348.415022B8.53448.7638.935729.052569.5258.61063A9.5259.35998.935728.867148.442963B8.53448.702048.935729.024629.5258.61063/8-32UNEF320.4720.7842A8.569969.34728.983988.897628.554722B8.66148.86469.009389.121149.5258.83923A9.5259.37269.009388.945888.580123B8.66148.811269.
28、009389.09329.5258.83923/8-36UNS360.4210.7062A9.49969.35999.04248.961128.658862B8.7638.94089.06789.174489.5258.83923/8-40UNC400.3780.6352A9.502149.37269.090669.011928.745222B8.83928.99169.113529.215129.5258.83920.399.9060.390-27UNS270.560.9412A9.878069.707889.265929.174488.757922B8.899.11869.293869.4
29、13249.9068.83920.4375” 11.117/16-14UNC141.0811.8141A11.076910.68329.898389.718048.917941B9.1449.55049.9339410.167611.11259.34722A11.076910.81539.898389.7798.917942B9.1449.55049.9339410.088911.11259.34723A11.112510.85099.933949.845048.95353B9.1449.441189.9339410.050811.11259.34727/16-16UNS160.861.588
30、2A11.076910.838210.04579.928869.184642B9.3989.753610.081310.231111.11259.57583A11.066810.873710.08139.99499.22023B9.3989.65210.081310.195611.11259.57587/16-18UNS180.8411.4112A11.079510.858510.162510.05339.400542B9.57589.90610.195610.337811.11259.80447/16-20UNF200.7561.271A11.079510.769610.939810.096
31、59.568181B9.728210.03310.28710.492711.06689.921242A11.079510.873710.939810.14739.568182B9.728210.03310.28710.424211.06689.921243A11.112510.906810.312410.20839.60123B9.72829.9466410.28710.391111.06689.921247/16-24UNS240.631.0582A11.084610.901710.396210.29979.824722B9.956810.210810.424210.548611.06681
32、0.08387/16-27UNS270.560.9412A11.084610.914410.472410.3819.964422B10.083810.312410.500410.619711.112510.26167/16-28UNEF280.540.9072A11.084610.919510.495310.403810.00252B10.134610.337810.523210.640111.112510.26163A11.112510.94748.6723210.454610.03053B10.134611.457910.523210.612111.112510.26167/16-32UN
33、320.4720.7842A11.087110.934710.571510.485110.14222B10.261610.439410.596910.708611.112510.26163A11.112510.960110.596910.533410.16763B10.261610.398810.596910.680711.112510.26160.5 12.71/2-13UNC131.1631.9541A12.661912.247911.391911.203910.25911B10.591811.023611.4311.676412.710.71632A12.661912.38511.391
34、911.264910.33532B10.591811.023611.4311.595112.710.71633A12.712.423111.4311.33610.37343B10.591810.881411.4311.551912.710.71631/2-12UNS121.262.1172A12.659412.369811.285211.148110.13972B10.41410.871211.325911.503712.710.71633A12.712.410411.325911.224310.18033B10.41410.726411.325911.457912.710.716341/2-
35、14UNS141.0811.8142A12.661912.400311.483311.356310.50292B10.744211.12521.521411.686512.710.71631/2-16UNS160.861.5882A12.664412.425711.633211.513810.77212B10.972811.328411.668811.823712.711.11253A13.20812.461211.668811.579910.80773B10.972811.224311.668811.785612.711.11251/2-18UNS180.8411.4112A12.66712
36、.44611.7511.638310.9882B11.17611.506211.783111.930412.711.11251/2-20UNF200.7561.271A12.66712.357111.841511.678912.52731B11.328411.607811.874512.087912.711.50872A12.66712.461211.841511.732312.52732B11.328411.607811.874512.016712.711.50873A12.712.494311.874511.793211.19123B11.328411.52411.874511.981212.711.50871/2-24UNS240.631.0582A12.669512.486611.981211.882111.40972B11.55711.81112.011712.141212.711.50871/2-27UNS270.560.9412A12.672112.501912.059911.965911.55192B11.68411.912612.087912.209812.711.9051/2-28UNEF280.540.9072A12.6721