美制螺纹尺寸表mm

美制螺纹尺寸表外螺纹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直径规格数高距代号MaxMinMaxMinMax代号Min0.073（#1）1-64UNC640.2360.3972A1.838961.742441.582421.531621.366522B1.424941.8543A1.85421.757681.597661.559561.381763B1.424941-72UNF720.210.3532A1.838961.750061.610361.56211.419862B1.47323A1.85421.76531.62561.590041.43513B1.47320.086(#2)2-56UNC560.2710.4542A2.169162.065021.874521.821181.630682B1.694182.1843A2.18442.080261.889761.849121.645923B1.694182-64UNF640.2360.3972A2.169162.072641.912621.861821.696722B1.755143A2.18442.087881.927861.889761.711963B1.755140.099(3#))3-48UNC480.3150.5292A2.496822.382522.153922.09551.864362B1.940562.5153A2.51462.40032.17172.128521.882143B1.940563-56UNF560.2710.4542A2.496822.392682.202182.14631.958342B2.024383A2.51462.410462.219962.179321.976123B2.024380.112(#4)4-40UNC400.3780.6352A2.824482.694942.4132.34952.067562B2.156462.8453A2.84482.715262.433322.385062.087883B2.156464-48UNF480.3150.5292A2.827022.712722.484122.423162.194562B2.270763A2.84482.73052.50192.456182.212343B2.270760.125(#5)5-40UNC400.3780.6352A3.154683.025142.74322.677162.397762B2.486663.1753A3.1753.045462.763522.715262.418083B2.486665-44UNF440.3440.5772A3.157223.03532.78132.71782.468882B2.550163A3.1753.053082.799082.750822.486663B2.550160.138(#6）6-32UNC320.4720.7942A3.484883.332482.969262.898142.542B2.64163.5053A3.50523.35282.989582.936242.560323B2.64166-40UNF400.3780.6352A3.484883.355343.07343.007362.727962B2.81943A3.50523.375663.093723.042922.748283B2.81940.164（#8）8-32UNC320.4720.7842A4.142743.990343.627123.553463.197862B3.3024.1663A4.16564.01323.649983.59413.220723B3.3028-36UNF360.4210.7062A4.145284.005583.688083.616963.304542B3.40363A4.16564.02593.70843.655063.324863B3.40360.19（#10）10-24UNC240.631.0582A4.80064.617724.112264.028443.540762B3.6834.8263A4.8264.643124.137664.074163.566163B3.68310-28UNS280.540.9072A4.80064.63554.211324.12753.718562B3.835410-32UNF320.4720.7842A4.803144.650744.287524.211323.858262B3.96243A4.8264.67364.310384.251963.881123B3.962410-36UNS360.4210.7062A4.803144.663444.345944.269743.96242B4.06410-40UNS400.3780.6352A4.803144.67364.391664.3184.043682B4.140210-48UNS480.3150.5292A4.805684.691384.462784.396744.175762B4.241810-56UNS560.2710.4542A4.808224.704084.513584.450084.269742B4.34340.216（#12）12-24UNC240.631.0582A5.4615.278124.772664.68634.201162B4.34340.4863A5.48645.303524.798064.732024.226563B4.343412-28UNF280.540.9072A5.4615.29594.871724.790444.378962B4.49583A5.48645.32134.897124.836164.404363B4.495812-32UNEF320.4720.7842A5.463545.311144.947924.869184.518662B4.62283A5.48645.3344.970784.909824.541523B4.622812-36UNS360.4210.7062A5.463545.323845.006344.930144.879342B4.724412-40UNS400.3780.6352A5.463545.3345.052064.97844.66092B4.800612-48UNS480.3150.5292A5.466085.351785.123185.057144.836162B4.902212-56UNS560.2710.4542A5.468625.364485.173985.110484.930142B5.00380.25"1/4-20UNC200.7561.271A6.322066.012185.496565.354324.810761B4.97846.352A6.322066.116325.496565.402584.810762B4.97843A6.356.144265.52455.453384.83873B4.97841/4-24UNS240.631.0582A6.322066.139185.633725.539745.062222B5.2071/4-27UNS270.560.9412A6.32466.154425.712465.623565.204462B5.3341/4-28UNF280.540.9071A6.32466.075685.735325.608325.242561B5.35942A6.32466.15955.735325.65155.242562B5.35943A6.356.18495.760725.697225.267963B5.35941/4-32UNEF320.4720.7842A6.32466.17225.808985.72775.379722B5.48643A6.355.68965.834385.773425.405123B5.48641/4-36UNS360.4210.7062A6.327146.187445.869945.79125.488942B5.5881/4-40UNS400.3780.6352A6.327146.19765.915665.8425.570222B5.66421/4-48UNS480.3150.5292A6.329686.215385.986785.91825.697222B5.76581/4-56UNS560.2710.5452A6.329686.225546.035045.9695.79122B5.86740.3125"5/16-18UNC180.8411.4111A7.907027.574286.990086.835146.228081B6.40087.93752A7.907027.686046.990086.888486.228082B6.40083A7.93757.716527.020566.944366.258563B6.40085/16-20UN200.7561.272A7.907027.701287.081526.979926.395722B6.55323A7.93757.731767.1127.03586.42623B6.55325/16-24240.631.0581A79095.67.635247.221227.081526.649721B6.78182A7.909567.726687.221227.127246.649722B6.78183A7.93757.754627.249167.180586.677663B6.78185/8-27UNS270.560.9412A7.91217.741927.299967.211066.791962B6.90885/8-28UN280.540.9072A7.91217.7477.322827.236466.830062B6.95963A7.93757.77247.348227.282186.855463B6.95965/8-32UNEF320.4720.7842A7.91217.75977.31527.31526.967222B7.08663A7.93757.78517.360927.360926.992623B7.08665/8-36UNS360.4210.7062A7.914647.774947.457445.32137.07392B7.16285/8-40UNS400.3780.6352A7.914647.78517.503167.42957.157722B7.2395/8-48UNS40.311780.3150.5292A7.917187.802887.574287.50577.287262B7.3660.325"3/8-16UNC180.8411.4111A9.491989.13138.460748.295647.599681B7.79788.2552A9.491989.253228.460748.348987.599682B7.79783A9.5259.286248.493768.409947.63273B7.79783/8-18UNS180.8411.4112A9.491989.2718.575048.465827.813042B8.0013/8-20UN200.7561.272A9.494529.288788.669028.564887.983222B8.15343A9.5259.319268.69958.620768.01373B8.15343/8-24UNF240.631.0581A9.497069.222748.808728.663948.237221B8.3822A9.497069.314188.808728.71228.237222B8.3823A9.5259.342128.836668.7638.265163B8.3823/8-27UNS270.560.9412A9.497069.326888.884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