公制英制螺纹对照表

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1、螺紋下孔徑表公制細牙螺紋JISB0211-1982(單位：：：mm)(註1)(註2)崁合度區分：中2級(注1)(注2)崁合度區分：中2級內螺紋小徑螺紋尺寸鑽頭直徑下孔徑最小直徑最大直徑M2.5×0.352.22.22(75%)2.1212.2213×0.352.72.72(75%)2.6212.7213.5×0.353.23.22(75%)3.1213.2214×0.53.53.59(75%)3.4593.5994.5×0.544.09(75%)3.9594.0995×0.54.54.59(75%)4.4594.5995.5×0.555.09(75%)4.959

2、5.0996×0.755.35.35(80%)5.1885.3787×0.756.36.35(80%)6.1886.3788×177.13(80%)6.9177.1538×0.757.37.35(80%)7.1887.3789×188.13(80%)7.9178.1539×0.758.38.35(80%)8.1888.37810×1.258.88.85(85%)8.6478.91210×199.13(80%)8.9179.15310×0.759.39.35(80%)9.1889.37811×11010.13(80%)9.91710.15311×0.7510.31

3、0.35(80%)10.18810.37812×1.510.510.62(85%)10.37610.67612×1.2510.810.85(85%)10.64710.91212×11111.13(80%)10.91711.15314×1.512.512.62(85%)12.37612.67614×11313.13(80%)12.91713.15315×1.513.513.62(85%)13.37613.67615×11414.13(80%)13.91714.15316×1.514.514.62(85%)14.37614.67616×11515.13(80%)14

4、.91715.15317×1.515.515.62(85%)15.37615.67617×11616.13(80%)15.91716.15318×21616.2(85%)15.83516.21018×1.516.516.62(85%)16.37616.67618×11717.13(80%)16.91717.15320×21818.2(85%)17.83518.21020×1.518.518.62(85%)18.37618.67620×11919.13(80%)18.91719.15322×22020.2(85%)19.83520.21022×1.520.520.

5、62(85%)20.37620.67622×12121.13(80%)20.91721.15324×22222.2(85%)21.83522.21024×1.522.522.62(85%)22.37622.67624×12323.13(80%)22.91723.15325×22323.2(85%)22.83523.21025×1.523.523.62(85%)23.37623.67625×12424.13(80%)23.91724.153螺紋下孔徑表公制細牙螺紋JISB0211-1982(單位：：：mm)(註1)(註2)崁合度區分：中2級(注1)(注2)崁合度區

6、分：中2級內螺紋小徑螺紋尺寸鑽頭直徑下孔徑最小直徑最大直徑M26×1.524.524.62(85%)24.37624.67627×22525.2(85%)24.83525.21027×1.525.525.62(85%)25.37625.67627×12626.13(80%)25.91726.15328×22626.2(85%)25.83526.21028×1.526.526.62(85%)26.37626.67628×12727.13(80%)26.91727.15330×32727.2(85%)26.75227.25230×22828.2(85%)27.835

7、28.21030×1.528.528.62(85%)28.37628.67630×12929.13(80%)28.91729.15332×23030.2(85%)29.83530.21032×1.530.530.62(85%)30.37630.67633×33030.2(85%)29.75230.25233×23131.2(85%)30.83531.21033×1.531.531.62(85%)31.37631.67635×1.533.533.62(85%)33.37633.67636×33333.2(85%)32.75233.25236×23434.2(85%

8、)33.83534.21