中英制螺纹对照表

1、中英制螺纹对照表切削速度与切削液加工材料切削堀:度(m/min)切削液直槽丝攻螺旋丝攻先端丝攻铸钢丝攻无屑丝攻高速同步丝 攻管用丝攻油性水溶性 （乳化液）半干式干式低碳素钢C0.25%以下8138131525813273236OO中碳素钢C0.25 0.45%7127121015710273236OO高碳素钢C0.45%以上696981358222725OO合金钢SCM712712101558222725调质钢25-45HRC35 (48)35 (48)46 (610)25O不锈钢SUS475881351036OO不锈钢SUS630SUS63135354625O工具钢SKD696971025O

2、铸 钢SC6116111015172225OO铸 铁FC1015102025OOOO球铸铁FCD7127121020102048OOO铜Cu696117121020712273225OO黄铜 黄铜铸件BsBsC10151020152515257122732510OOOO青铜 青铜铸件PBPBC61161110201020712611OO变 形 铝合金AL1020102010251020100-3005-10OO铝合金 铸 件ACADC10-151015152010201015803001015OO镁合金MC712712101510201015OOO锌铸件ZDC71271210151020712

3、271001015OO热硬塑料Thermo Setting Plastic102015255-10OOO热可塑性塑 料Thermo Plastic10201015102010202732510OOO最适 。适用 可使用 一不可使用螺纹下孔径表公制粗牙螺纹JISB 0209-1982(单位:mm)螺纹尺寸钻头直径族合度区分：中11)2级(注2) 下孔径段合度区分：中广1)2级产2) 内螺纹小径最小直径最大直径M 1 x 0.250.750.78(80%)0.7290.7851.1 x0.250.850.88(80%)0.8290.8851.2x0.250.950.98(80%)0.9290.98

4、51.4 x 0.31.11.14(80%)1.0751.1421.6 x 0.351.251.32(75%)1.2211.3211.8 x 0.351.451.52(75%)1.4211.5212 x 0.41.61.65(80%)1.5671.6792.2 x 0.451.751.83(75%)1.7131.8382.5 x 0.452.12.13(75%)2.0132.1383 x 0.52.52.59(75%)2.4592.5993.5 x 0.62.93.01(75%)2.8503.0104 x 0.73.33.39(80%)3.2423.4224.5 x 0.753.83.85(8

5、0%)3.6883.8785 x 0.84.24.31(80%)4.1344.3346 x 155.13(80%)4.9175.1537 x 166.13(80%)5.9176.1538 x 1.256.86.85(85%)6.6476.9129 x 1.257.87.85(85%)7.6477.91210 x 1.58.58.62(85%)8.3768.67611 x 1.59.59.62(85%)9.3769.67612 x 1.7510.310.40(85%)10.10610.44114 x21212.2(85%)11.83512.21016 x 21414.2(85%)13.83514

6、.21018 x2.515.515.7(85%)15.29415.74420 x 2.517.517.7(85%)17.29417.74422 x 2.519.519.2(85%)19.29419.74424 x 32121.2(85%)20.75221.25227 x32424.2(85%)23.75224.25230 x 3.526.526.6(90%)26.21126.77133 x 3.529.529.6(90%)29.21129.77136 x 43232.1(90%)31.67032.27039 x 43535.1(90%)34.67035.27042 x 4.537.537.6(

7、90%)37.12937.79945 x 4.540.540.6(90%)40.12940.79948 x 54343.1(90%)42.58743.297注以下等级：5H、M1.6以上等级：6H(2)基于 JIS B 0209-1982 标准螺纹尺寸钻头直径炭合度区分：中产1）2级（注2） 下孔径发合度区分：中（注D2级（注2） 内螺纹小径最小直径最大直径M 2.5 x 0.352.22.22 (75%)2.1212.2213 x 0.352.72.72 (75%)2.6212.7213.5 x 0.353.23.22 (75%)3.1213.2214 x 0.53.53.59 (75%)3

8、.4593.5994.5 x 0.544.09 (75%)3.9594.0995 x 0.54.54.59 (75%)4.4594.5995.5 x 0.555.09 (75%)4.9595.0996 x 0.755.35.35 (80%)5.1885.3787 x 0.756.36.35 (80%)6.1886.3788 x 17 |7.13 (80%)6.9177.1538 x 0.757.37.35 (80%)7.1887.3789 x 188.13 (80%)7.9178.1539 x 0.758.38.35 (80%)8.1888.37810 x 1.258.88.85 (85%)8

9、.6478.91210 X 199.13 (80%)8.9179.15310 x0.759.39.35 (80%)9.1889.37811 x 11010.13 (80%)9.91710.15311 x 0.7510.310.35 (80%)10.18810.37812 x 1.510.510.62 (85%)10.37610.67612 x 1.2510.810.85 (85%)10.64710.91212 x 11111.13 (80%)10.91711.15314 x 1.512.512.62 (85%)12.37612.67614 x 11313.13 (80%)12.91713.15

10、315 x 1.513.513.62 (85%)13.37613.67615 x 11414.13 (80%)13.91714.15316 x 1.514.514.62 (85%)14.37614.67616 x 11515.13 (80%)14.91715.15317 x 1.515.515.62 (85%)15.37615.67617 x 11616.13 (80%)15.91716.15318 x21616.2(85%)15.83516.21018 x 1.516.516.62 (85%)16.37616.67618 x 117 |17.13 (80%)16.91717.15320 x2

11、1818.2(85%)17.83518.21020 x 1.518.518.62 (85%)18.37618.67620 x 11919.13 (80%)18.91719.15322 x22020.2(85%)19.83520.21022 x 1.520.520.62 (85%)20.37620.67622 x 12121.13 (80%)20.91721.15324 x22222.2(85%)21.83522.210螺纹下孔径表公制细牙螺纹mm）JIS B 0211 1982(单位:24x 1.522.522.62(85%)22.37622.67624X 12323.13(80%)22.91

12、723.15325x22323.2(85%)22.83523.21025x 1.523.523.62(85%)23.37623.67625X 12424.13(80%)23.91724.153纹下孔径表螺纹尺寸钻头直径以合度区分：中产1）2级（注2） 下孔径操合度区分：中/D2级（注2） 内螺纹小径最小直径最大直径M 26 x 1.524.524.62 (85%)24.37624.67627x22525.2(85%)24.83525.21027x1.525.525.62 (85%)25.37625.67627x12626.13 (80%)25.91726.15328x22626.2(85%)2

13、5.83526.21028 x 1.526.526.62 (85%)26.37626.67628 x 12727.13 (80%)26.91727.15330 x 32727.2 (85%)26.75227.25230 x 22828.2 (85%)27.83528.21030 x 1.528.528.62 (85%)28.37628.67630 x 12929.13 (80%)28.91729.15332 x 23030.2 (85%)29.83530.21032 x 1.530.530.62 (85%)30.37630.67633 x 33030.2 (85%)29.75230.25233

14、 x 23131.2 (85%)30.83531.21033 x 1.531.531.62 (85%)31.37631.67635 x 1.533.533.62 (85%)33.37633.67636 x 33333.2 (85%)32.75233.25236 x 23434.2 (85%)33.83534.21036 x 1.534.534.62 (85%)34.37634.67638 x 1.536.536.62 (85%)36.37636.67639 x 33636.2 (85%)35.75236.25239 x 23737.2 (85%)36.83537.21039 x 1.537.5

15、37.62 (85%)37.37637.67640 x 33737.2 (85%)36.75237.25240 x 23838.2 (85%)37.83538.21040 x 1.538.538.62 (85%)38.37638.67642 x 43838.1(90%)37.67038.27042x33939.2 (85%)38.75239.25242 x 24040.2 (85%)39.83540.21042 x 1.540.540.62 (85%)40.37640.67645 x 44141.1(90%)40.67041.27045 x 34242.2 (85%)41.75242.252J

16、IS B 0211/982(单位:公制细牙螺纹mm）45 x 24343.2(85%)42.83543.21045 x 1.543.543.62(85%)43.37643.67648 x 44444.1(90%)43.67044.27048x34545.2(85%)44.75245.25248 x 24646.2(85%)45.83546.21048 x 1.546.546.62(85%)46.37646.67650 x 34747.2(85%)46.75247.25250 x 24848.2(85%)47.83548.21050 x 1.548.548.62(85%)48.37648.676

17、注(1)等级：6H(2)基于 JIS B 0211-1982 标准螺纹下孔径表美制粗牙螺纹(单位:mm)螺纹尺寸钻头直径2B级螺纹 下孔径内螺纹小径最小直径最大直径NO.1 -64UNC1.551.57(65%)1.4251.5822 -561.81.86(65%)1.6951.8713 -482.12.14(65%)1.9412.1464 -402.32.36(70%)2.1572.3855 -402.62.69(70%)2.4872.6976 .322.82.86(75%)2.6422.8958 .323.43.52(75%)3.3023.53010 -243.93.91(80%)3.68

18、33.96212 -244.54.57(80%)4.3444.5971/4 -205.15.25(80%)4.9795.2575/16 -186.66.72(80%)6.4016.7313/8 -1688.15(80%)7.7988.1537/16 -149.49.5(80%)9.1449.5501/2 -1310.811.0(80%)10.59211.0239/16 -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%)19.1

19、7719.7611, 822.222.5(85%)21.97122.60611/8-72525.2(85%)24.63825.34911/4-728.228.4(85%)27.81328.52413/8-630.831.0(85%)30.35331.11511/2-63434.2(85%)33.52834.29013/4-539.539.8(85%)38.96439.8272 -445.245.3(90%)44.67945.593螺纹尺寸钻头直径2B级螺纹 下孔径内螺纹小径最小直径最大直径NO.O -80UNF1.251.30 (65%)1.1821.3051 -721.551.61 (65%

20、)1.4741.6122 -641.851.90 (65%)1.7561.9123 -562.12.17 (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

21、/8 -248.58.61 (80%)8.3828.6367/16 -209.910.01 (80%)9.72910.0331/2 -2011.511.60 (80%)11.32911.6079/16 -1812.913.07 (80%)12.75113.0815/8 -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 1/4-1

22、229.529.9(80%)29.46429.9211 3/8 -1232.833.0(85%)32.63933.0961 1/2-123636.2(85%)35.81436.271螺纹下孔径表美制细牙螺纹mm)(单位:螺纹尺寸钻头直径2B级螺纹 下孔径2级内螺纹小径最小直径最大直径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 - 4