1、螺紋尺寸鉆頭直徑崁合度區(qū)分：中(注。2級(注2) 下孔徑崁合度區(qū)內(nèi)螺紋蔦”2級*注2，最小直徑最大直徑M 1X0.250.750.78(80%)0.7290.7851.1>0.250.850.88(80%)0.8290.8851.2X.250.950.98(80%)0.9290.9851.4X.31.11.14(80%)1.0751.1421.6X.351.251.32(75%)1.2211.3211.8X.351.451.52(75%)1.4211.5212X0.41.61.65(80%)1.5671.6792.2X.451.751.83(75%)1.7131.8382.5X.452.

2、12.13(75%)2.0132.1383X0.52.52.59(75%)2.4592.5993.5X.62.93.01(75%)2.8503.0104X0.73.33.39(80%)3.2423.4224.5X.753.83.85(80%) d3.6883.8785X0.84.24.31(80%)4.1344.3346X155.13(80%) 14.9175.15317X166.13(80%)5.9176.1538X1.256.86.85(85%)6.6476.9129X1.257.87.85(85%)7.6477.91210X1.58.58.62(85%)8.3768.67611X1.59

3、.59.62(85%)9.3769.67612X1.7510.310.40(85%)10.10610.44114X21212.2(85%)11.83512.21016X21414.2(85%)13.83514.21018X2.515.515.7(85%)15.29415.74420X2.517.517.7(85%)17.29417.74422X2.519.519.2(85%)亍19.29419.744:24X32121.2(85%)20.75221.25227X32424.2(85%)123.75224.25230X3.526.526.6(90%)26.21126.77133X3.529.52

4、9.6(90%)29.21129.77136X43232.1(90%)31.67032.27039X43535.1(90%)34.67035.27042X4.537.537.6(90%)37.12937.79945X4.540.540.6(90%)40.12940.79948X54343.1(90%)42.58743.297螺紋底孔徑 公制粗牙螺紋JIS B 0209-1982(單位：mm)注(1)M1.4以下等級：5H、M1.6以上等級：6H (2)基于 JIS B 0209-1982 標(biāo)準(zhǔn)螺紋下孔徑表JIS B 0211-1982(單位:公制細(xì)牙螺紋mm)螺紋尺寸鉆頭直徑崁合度區(qū)分：中（注

5、1）2級（注2） 下孔徑崁合度區(qū)內(nèi)螺紋中、徑2級最小直徑最大直徑M 2.5>0.352.22.22(75%)2.1212.2213X0.352.72.72(75%)2.6212.7213.5>.353.23.22(75%)3.1213.2214X0.53.53.59(75%)3.4593.5994.5X.544.09(75%)3.9594.099 5X0.54.54.59(75%)4.4594.5995.5X.5P 55.09(75%)4.9595.0996X0.755.35.35(80%)5.1885.3787X0.75P6.36.35(80%)6.1886.378:8X177.

6、13(80%)6.9177.1538X0.757.37.35(80%)7.1887.3789X188.13(80%)7.9178.1539X0.758.38.35(80%)8.1888.37810X1.25r 8.88.85(85%)8.6478.912:10X199.13(80%)8.9179.15310X0.759.39.35(80%)9.1889.37811X11010.13(80%)9.91710.15311X0.7510.310.35(80%)10.18810.37812X1.510.510.62(85%)10.37610.67612X1.2510.810.85(85%)10.647

7、10.91212X11111.13(80%)10.91711.15314X1.512.512.62(85%)12.37612.67614X1P 1313.13(80%)12.91713.15315X1.513.513.62(85%)13.37613.67615X1P 1414.13(80%)13.91714.15316X1.514.514.62(85%)14.37614.676:16X11515.13(80%)14.91715.15317X1.515.515.62(85%)15.37615.67617X11616.13(80%)15.91716.15318X2r 1616.2(85%)15.8

8、3516.210 18X1.516.516.62(85%)16.37616.67618X1r 1717.13(80%)16.91717.153I20X21818.2(85%)17.83518.21020X1.518.518.62(85%)18.37618.67620X11919.13(80%)18.91719.15322X22020.2(85%)19.83520.21022X1.520.520.62(85%)20.37620.67622X12121.13(80%)20.91721.15324X22222.2(85%)21.83522.21024X1.522.522.62(85%)22.3762

9、2.67624X1r 2323.13(80%)22.91723.153:25X22323.2(85%)22.83523.21025X1.523.523.62(85%)23.37623.67625 X12424.13(80%)23.91724.153螺紋下孔徑表公制細(xì)牙螺紋JIS B 0211-1982（單位:mm）螺紋尺寸鉆頭直徑崁合度區(qū)分：中（注。2級（注2） 下孔徑崁合度區(qū)內(nèi)螺紋小徑2級（注2）最小直徑最大直徑M 26X1.524.524.62(85%)24.37624.676127X22525.2(85%)24.83525.21027X1.525.525.62(85%)25.37625.

10、67627X12626.13(80%)25.91726.15328X2r 2626.2(85%)25.83526.210 28X1.526.526.62(85%)26.37626.67628X12727.13(80%)26.91727.15330X32727.2(85%)26.75227.25230X22828.2(85%)27.83528.21030X1.5P 28.528.62(85%)28.37628.67630X12929.13(80%)28.91729.15332X23030.2(85%)29.83530.21032X1.530.530.62(85%)30.37630.67633X3

11、3030.2(85%)29.75230.25233X213131.2(85%)30.83531.210133X1.531.531.62(85%)31.37631.67635X1.533.533.62(85%)33.37633.67636X33333.2(85%)32.75233.25236X2P 3434.2(85%)33.83534.21036X1.534.534.62(85%)34.37634.67638X1.5:36.536.62(85%)36.37636.676:39X33636.2(85%)35.75236.25239X23737.2(85%)36.83537.21039X1.537

12、.537.62(85%)37.37637.67640X33737.2(85%)36.75237.25240X2:3838.2(85%)37.83538.210:40X1.538.538.62(85%)38.37638.67642X43838.1(90%)37.67038.27042X33939.2(85%)38.75239.25242X24040.2(85%)39.83540.21042X1.540.540.62(85%)40.37640.67645X44141.1(90%)40.67041.27045X34242.2(85%)41.75242.25245X24343.2(85%)42.835

13、43.21045X1.5P 43.543.62(85%)43.37643.676:48X44444.1(90%)43.67044.27048X34545.2(85%)44.75245.25248X24646.2(85%)45.83546.21048X1.546.546.62(85%)46.37646.67650X34747.2(85%)46.75247.25250X2:4848.2(85%)47.83548.210:50X1.548.548.62(85%)48.37648.676注等級：6H(2)基于 JIS B 0211-1982 標(biāo)準(zhǔn)螺紋下孔徑表美制粗牙螺紋(單位:mm)螺紋尺寸鉆頭直徑2

14、B級螺紋 下孑L徑內(nèi)螺紋小徑最小直徑最大直徑NO.1-64UNC1.551.57(65%)1.4251.582:2-561.81.86(65%)1.6951.8713-482.12.14(65%)1.9412.1464-402.32.36(70%)2.157|2.3855-402.62.69(70%)2.4872.69716-322.82.86(75%)2.6422.8958-323.43.52(75%)3.3023.530110-243.93.91(80%)3.6833.96212-244.54.57(80%)4.3444.5971/4-205.15.25(80%)4.9795.2575/1

15、6-186.66.72(80%)6.4016.7313/8-1688.15(80%)7.7988.1537/16-149.49.50(80%)9.1449.5501/2-1310.811.0(80%)10.59211.023 廠9/16-1212.212.3(85%)11.98912.4465/8-1113.613.8(85%)13.38613.8683/4-1016.516.8(80%)16.30716.8407/8-919.519.6(85%)19.17719.7611-822.222.5(85%)21.97122.6061 1/8-72525.2(85%)24.63825.349:1 1

16、/4-728.228.4(85%)27.813I28.5241 3/8-630.831.0(85%)30.35331.1151 1/2-63434.2(85%)33.52834.2901 3/4-539.539.8(85%)38.96439.8272-445.245.3(90%)44.67945.593螺紋下孔徑表美制細(xì)牙螺紋（單位:mm）螺紋尺寸鉆頭直徑2B級螺紋 下孑L徑內(nèi)螺紋小徑最小直徑最大直徑NO. 0 -80UNF1.251.30(65%)1.1821.3051-721.551.61(65%)1.4741.6122-641.851.90(65%)1.7561.9123-562.12.

17、17(70%)2.0252.1974-482.42.44(70%)2.2712.4585-442.72.74(70%)2.5512.7406-402.93.02(70%)2.8203.0228-363.53.59(75%)3.4043.60610-324.14.14(80%)3.9634.16512-284.64.70(80%)4.4964.7241/4-285.55.56(80%)5.3605.5885/16-246.97.02(80%)6.7827.0353/8-248.58.61(80%)8.3828.6367/16-209.910.01(80%)9.72910.0331/2-2011.

18、511.60(80%)11.32911.6079/16-1812.913.07(80%)12.751|13.0815/8-1814.514.65(80%)14.35114.6813/4-1617.517.59(85%)17.32317.6787/8-1420.520.6(85%)20.27020.6751-1223.223.5(85%)23.11423.5711 1/8-1226.526.7(80%)26.28926.7461 1/4 -1229.529.9(80%)29.46429.9211 3/8-1232.833.0(85%)32.63933.0961 1/2 -123636.2(85%

19、)35.814|36.271螺紋下孔徑表仲位:縫紉機(jī)螺紋（SM）mm）螺紋尺寸鉆頭直徑2B級螺紋 下孑L徑2級內(nèi)螺紋小徑最小直徑最大直徑SM 1/16-801.251.28(75%)1.2111.2815/64-641.551.57(80%)1.5131.5933/32-1002.102.15(70%)2.0812.1563/32-561.851.91(80%)1.8411.9361/8-442.502.58(80%)2.4852.6051/8-402.452.52(80%)2.4212.5519/64-402.852.91(80%)2.8182.94811/64-403.653.71(80%

20、)3.6123.7423/16-323.903.94(80%)3.8203.9803/16-283.703.82(80%)3.6843.8447/32-324.704.73(80%)4.6144.77415/64-284.905.01(80%)4.8755.0551/4-405.605.69(80%)5.5965.7261/4-285.305.41(80%)5.2725.452縫紉機(jī)螺紋（SM）（單位:mm）螺紋尺寸鉆頭直徑2B級螺紋 下孑L徑2級內(nèi)螺紋小徑最小直徑最大直徑SM 1/4-245.105.25(80%)5.0865.2669/32-286.106.20(80%)6.0666.25

21、69/32-205.705.82(80%)5.6345.82415/16-286.906.00(80%)6.8607.0505/16-246.706.84(80%)6.6746.8645/16-186.306.38(85%)6.2546.4443/8-288.508.58(80%)8.4478.6373/8-187.907.97(85%)7.8438.053廠7/16-2810.1010.17(80%)10.03410.2247/16-169.309.36(85%)9.2209.440:1/2 -2811.7011.76(80%)11.62211.8121/2 -2011.3011.38(80%)11.19011.4101/2 -1210.3010.36(85%)10.18010.420螺紋下孔徑表英制粗牙螺紋（單位:mm）、切削速度與切削液加工材料切削速度（m/min）切