各種螺紋詳細(xì)參數(shù)和鉆孔直徑對照表..

1、螺紋下孔徑表公制粗牙螺紋JIS B 0209-1982（單位：mm）螺紋尺寸鉆頭直徑崁合度區(qū)分：中（注 12級（注2） 下孔徑崁合度區(qū)分：中（註1丿2級（註2丿 內(nèi)螺紋小徑最小直徑最大直徑M 1X0.250.750.78(80%)0.7290.7851.10.25|0.850.88(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%)1.4211.5212X0.4P 1.61.65(80%)1.5671.

2、6792.2X.451.751.83(75%)1.7131.8382.5X.45P 2.12.13(75%)2.0132.1383X0.5|2.52.59(75%)2.4592.5993.5X.62.93.01(75%)2.8503.0104X0.73.33.39(80%)3.2423.4224.5X.753.83.85(80%)3.6883.8785X0.8|4.24.31(80%)4.1344.3346X155.13(80%)4.9175.1537X166.13(80%)5.9176.1538X1.25 6.86.85(85%)6.6476.9129X1.257.87.85(85%)7.6

3、477.91210X1.58.58.62(85%)8.3768.67611X1.59.59.62(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%)19.29419.74424X32121.2(85%)20.75221.25227X32424.2(85%)23.75224.252:30

4、X3.526.526.6(90%)26.21126.771133X3.529.529.6(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註（1）M1.4以下等級：5H、M1.6以上等級：6H 基於JIS B 0209-1982 標(biāo)準(zhǔn)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：

5、中（注 12級（注2） 下孔徑崁合度區(qū)螺紋小徑1,2級（註2）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 X).353.23.22(75%)3.1213.2214 X0.53.53.59(75%)3.4593.5994.5 X).544.09(75%)3.9594.0995X0.54.54.59(75%)4.4594.5995.5 X).555.09(75%)4.9595.0996X0.755.35.35(80%)5.1885.3787X0.75P 6.36.35(80%)6.1886.3788

6、X177.13(80%)6.9177.1538X0.757.37.35(80%)7.1887.3789X188.13(80%)7.9178.1539X0.758.38.35(80%)8.1888.37810 X1.258.88.85(85%)8.6478.91210 X199.13(80%)8.9179.15310 X0.759.39.35(80%)9.1889.378:11X11010.13(80%)9.91710.15311 X0.7510.310.35(80%)10.18810.37812 X1.510.510.62(85%)10.37610.67612 X1.2510.810.85(8

7、5%)10.64710.91212 X11111.13(80%)10.91711.15314 X1.512.512.62(85%)12.37612.67614 X11313.13(80%)12.91713.153115 X1.513.513.62(85%)13.37613.67615 X11414.13(80%)13.91714.15316 X1.514.514.62(85%)14.37614.67616 X11515.13(80%)14.91715.15317 X1.515.515.62(85%)15.37615.67617 X11616.13(80%)15.91716.15318 X216

8、16.2(85%)15.83516.21018 X1.516.516.62(85%)16.37616.67618 X11717.13(80%)16.91717.15320 X21818.2(85%)17.83518.21020 X1.518.518.62(85%)18.37618.676:20 X11919.13(80%)18.91719.15322 X22020.2(85%)19.83520.21022 X1.520.520.62(85%)20.37620.67622 X12121.13(80%)20.91721.15324 X22222.2(85%)21.83522.21024 X1.52

9、2.522.62(85%)22.37622.67624 X12323.13(80%)22.91723.153 二25 X22323.2(85%)22.83523.21025 X1.523.523.62(85%)23.37623.676:25 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 12級（注2） 下孔徑崁合度區(qū)內(nèi)螺紋小徑1）2級（註2）最小直徑最大直徑M 26 X1.524.524.62(85%)24.37624.67627X22525.2(85%)24.83525.21027X

10、1.525.525.62(85%)25.37625.67627X12626.13(80%)25.91726.15328X22626.2(85%)25.83526.21028X1.526.526.62(85%)26.37626.67628X12727.13(80%)26.91727.15330X32727.2(85%)26.75227.25230X22828.2(85%)27.83528.21030X1.528.528.62(85%)28.37628.67630X12929.13(80%)28.91729.15332X23030.2(85%)29.83530.21032X1.530.530.62

11、(85%)30.37630.67633X33030.2(85%)29.75230.25233X23131.2(85%)30.83531.21033X1.531.531.62(85%)31.37631.67635X1.533.533.62(85%)33.37633.67636X33333.2(85%)32.75233.25236X23434.2(85%)33.83534.21036X1.534.534.62(85%)34.37634.676138X1.536.536.62(85%)36.37636.67639X33636.2(85%)35.75236.25239X23737.2(85%)36.8

12、3537.21039X1.537.537.62(85%)37.37637.67640X33737.2(85%)36.75237.25240X23838.2(85%)37.83538.21040X1.538.538.62(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%)41.75242.25245X2434

13、3.2(85%)42.83543.21045X1.543.543.62(85%)43.37643.67648X44444.1(90%)43.67044.27048X34545.2(85%)44.75245.25248X24646.2(85%)45.83546.21048X1.546.546.62(85%)46.37646.67650X34747.2(85%)46.75247.25250X24848.2(85%)47.83548.21050X1.548.548.62(85%)48.37648.676註等級：6H(2)基於 JIS B 0211-1982 標(biāo)準(zhǔn)螺紋下孔徑表美制粗牙螺紋(單位：mm)

14、螺紋尺寸鉆頭直徑2B級螺紋 下孔徑內(nèi)螺紋小徑最小直徑最大直徑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%)2.6422.8958-32P 3.43.52(75%)3.3023.53010-243.93.91(80%)3.6833.96212-244.54.57(80%)P4.3444.5971/4-205.15.25(80%)4.979

15、5.2575/16-18 6.66.72(80%):6.4016.731:3/8-1688.15(80%)7.7988.1537/16-149.49.50(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%)P 19.17719.7611-822.222.5(85%)21.97122.6061 1/8-72525.2(85%)P 24.

16、63825.3491 1/4-728.228.4(85%)27.81328.5241 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 下孔徑內(nèi)螺紋小徑最小直徑最大直徑NO. 0 -80UNF1.251.30(65%)P 1.1821.3051-72|1.551.61(65%)1.4741.6122 -641.851.90(65%)P1.7

17、561.9123 -562.12.17(70%)2.0252.1974 -482.42.44(70%)P2.2712.4585 -442.72.74(70%)2.5512.7406 -402.93.02(70%)P 2.8203.0228 -36I3.53.59(75%)3.4043.60610 -324.14.14(80%)P3.9634.16512 -284.64.70(80%)4.4964.7241/4-285.55.56(80%)P5.3605.5885/16-246.97.02(80%)6.7827.0353/8-248.58.61 (80%)P8.3828.636刀16-209.9

18、10.01 (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 -1229.529.9(80%)29.46429.9211 3/8-1232.833.0(85%)

19、32.63933.0961 1/2 -123636.2(85%)35.81436.271螺紋下孔徑表英制粗牙螺紋（單位：mm）螺紋尺寸下孑L徑嵌合率A列（硬材質(zhì)）B列（軟材質(zhì)）A列直徑B列直徑內(nèi)螺紋最小徑內(nèi)螺紋最大徑W 1/82.62.570.783.070.088.3 :3/163.73.678.485.870.088.31/45.15.076.983.070.588.3 丁5/166.66.574.099.570.188.43/88.07.975.080.069.588.27/169.49.373.780.069.088.81/2P 10.710.573.881.269.088.2 9/1

20、612.312.073.484.469.088.25/8P 13.713.573.580.369.688.5 :3/416.716.572.378.469.688.37/8r 19.519.375.4P 80.970.188.4122.422.073.883.671.088.21 1/8:25.024.876.9P 81.372.088.41 1/428.328.074.380.772.088.41 3/8P 30.530.381.6P 85.373.888.6 1 1/233.833.579.384.873.888.6 11 5/8:36.035.781.1P 85.774.888.31 3

21、/439.239.080.783.874.888.31 7/8:41.841.580.6P 84.774.788.4:245.044.780.284.474.788.4螺紋下孔徑表英制管用螺紋（單位：mm）管用螺紋尺寸JIS B 0203JIS B 2301錐管內(nèi)螺紋Rc（PT）平行內(nèi)螺紋Rp（PS）錐管內(nèi)螺紋計算值下孔徑計算值下孔徑計算值下孔徑1/166.230 6.26.4906.5一一1/88.2358.28.4958.58.1918.21/410.94110.911.34111.410.94510.93/814.42814.414.84614.914.38814.41/217.9501

22、818.48918.517.943183/423.3492323.9752423.305231P 29.423 2930.1113029.353291 1/437.9403838.7723937.890381 1/2P 43.833 :4444.56545P 43.72043255.4125556.4765655.406552 1/270.701 :7172.00972P 70.78870383.2018384.7098583.364833 1/2:95.547:9697.15597P 95.74795:4P 107.834 108109.855110P 108.3221085133.1101

23、33135.255135133.5971336:158.510 二159160.655161P 158.8101587183.360183185.9541868:208.560 :209211.3542129233.960234236.75423710259.1661259262747310312.875313螺紋下孔徑表英制平行管用螺紋PF（G）（單位：mm）螺紋下孑L徑內(nèi)螺紋小徑（參 考）尺寸大徑標(biāo)準(zhǔn)嵌合 高度H系列1009590858075706560最小直徑最大直徑G 1/167.7230.58086.566.626.686.746.796.856.916.9

24、77.036.8436.561G(PF)1/89.7288.578.628.688.748.808.868.928.979.038.8488.5661/413.1570.856011.5311.6211.7011.7911.8711.9612.0412.1311.89011.4453/816.66214.9515.0415.1215.2115.2915.3815.4615.5515.6415.39514.9501/220.9551.161818.818.919.019.119.219.319.419.619.17218.6315/822.91120.620.720.820.921.021.22

25、1.321.421.521.13020.5893/426.44124.224.424.524.624.724.824.925.024.65824.1177/830.20127.928.028.128.228.338.528.628.728.828.41827.877133.24914.78630.330.430.630.730.931.031.231.331.530.93130.2911 1/837.89735.135.235.435.535.735.835.936.535.57934.9391 1/441.91039.039.139.239.439.639.739.840.040.139.5

26、9238.9521 3/844.32341.441.541.741.842.042.142.242.442.642.00541.3651 1/247.80345.045.145.345.445.645.745.946.045.48549.0231 5/851.91049.249.349.549.649.849.950.050.249.67250.7881 3/453.74650.850.951.151.251.451.551.752.052.051.42856.656259.61456.857.057.157.257.457.557.857.857.296使用粗線左側(cè)數(shù)據(jù)作為攻絲前的底孔直徑，

27、可加工符合JIS B 0202的A級或B級的內(nèi)螺紋小徑。美制斜行管用螺紋 （NPT?NPS）（單位：mm）管用螺紋尺寸斜行螺紋（NPT）平行螺紋（NPS）鉆頭直徑鉆頭直徑使用鉸刀場合不使用鉸刀場合1/16一0.234 (5.94)0.246( 6.15)1/40.250( 6.35)1/821/640.328 (8.33)一0.332( 8.43)11/320.344( 8.74)1/427/640.422 (10.72)7/160.438(11.13)7/160.438(11.13)3/89/160.562 (14.27)9/160.562(14.27)37/640.578(14.68)1/

28、211/160.688 (17.48)45/640.703(17.86)23/320.719(18.26)3/457/640.891 (22.63)29/320.906(23.01)59/640.922(23.42)11 1/81.125 (28.58)1 9/641.141(28.98)15/321.156(29.36)1 1/41 15/321.469 (37.31)1 31/641.484(37.69)1 1/21.500(38.10)1 1/21 1/161.703 (43.26)123/321.719(43.66)13/41.750(44.45)22 11/642.172 (55.1

29、7)23/162.188(55.58)2 7/322.219(56.36)2 1/22 39/642.578 (65.48)239/642.609(66.27)2 21/322.656(67.46)上述鉆頭直徑來源於美制管用螺紋ANSI / ASME B1.20.1 1983 Pipe Threads, Ge neral Purpose (In ch)標(biāo)準(zhǔn)o螺紋下孔徑表美制管用耐密斜行螺紋(NPTF?NPSF)(單位：mm)1斜行螺紋(NPTF)平行螺紋(NPSF)管用螺紋尺寸鉆頭直徑鉆頭直徑使用鉸刀場合不使用鉸刀場合1/16一0.2340.2461/40.250 (6.35)(5.94)(6

30、.25)1/821/640.3280.3391 1/320.344 (8.74)(8.33)一(8.61)1/427/640.4227/160.438一0.444 (11.28)(10.72)(11.13)3/89/160.56237/640.57837/640.578 (14.68)(14.27)(14.68)1/211/160.68845/640.70323/320.719 (18.26)(17.48)(17.86)3/457/640.89159/640.922一0.922 (23.42)(22.63)(23.42)11 1/81.12515/321.15615/321.156 (29.3

31、6)(28.58)(29.36)1 1/41 15/321.4691 1/21.500一一(37.31)(38.10)1 1/211.70311.734一一45/64(43.26)47/64(44.04)22 3/162.1882 刀322.219一一(55.58)(56.36)2 1/22 19/322.5942 41/642.641一一(65.89)(67.08)上述鉆頭直徑來源於美制管用耐密斜行螺紋ANSI B1.20.3 1957 Dryseal Pipe Threads (Inch)標(biāo)準(zhǔn)螺紋下孔徑表（無屑絲攻用）公制螺紋（NRT）螺紋尺寸1級螺紋用下孔徑2級螺紋用下孔徑RH精度最小最

32、大 （嵌合率 ）RH精度最小最大 （嵌合率）M 1 0.2520.87 0.89(10085)40.90 0.92 (10080)1.1 .2520.97 0.99(10085)41.00 1.02 (10080)1.2 .2521.07 1.09(10085)41.10 1.12 (10080)1.4 .321.244 1.263(10085)41.270 1.294 (10080)1.7 .3521.51 1.54(10080)41.54 1.58 (10075)2 0.421.78 1.82(10080)41.81 1.85 (10075)2.3 .422.08 2.12 (10080)

33、42.11 2.15 (10075)2.5 .4522.25 2.29(10080)|42.28 2.33 (10075)2.6 .4522.35 2.39(10080)P 4 d2.38 2.43 (10075)3 0.532.74 2.78(10080)52.76 2.81 (10075)3.5 .633.18 3.21(10085)r513.20 3.26 (10075):40.743.63 3.67(10085) 6 :3.65 3.70 (10085)5 0.844.57 4.62(10085)64.59 4.66 (10080)6 45.45 5.51(10085)75.48 5.

34、57 (10080)7 46.45 6.51(10085)76.48 6.57 (10080)8.2557.31 7.38(10085)7 廠7.34 7.41 (10085):8 47.45 7.51(10085)77.48 7.57 (10080)10.559.16 9.22(10090)r 719.18 9.28 (10085)110.2559.31 9.38(10085)79.34 9.41 (10085)10 59.46 9.52(10085)79.48 9.57 (10080)12.75511.01 11.08(10090)811.05 11.15 (10085)12.5511.1

35、6 11.22(10090)711.18 11.28 (10085)12.25511.31 11.38(10085)17111.34 11.41 (10085)112 511.46 11.52(10085)711.48 11.57 (10080)14612.83 12.95(10090)1012.92 13.04 (10085)14.5513.16 13.22(10090)913.21 13.30 (10085)16 614.87 14.95(10090)1014.92 15.04 (10085)16.5515.16 15.22(10090)915.21 15.30 (10080)182.56

36、16.57 16.67(10090)1116.63 16.78 (10085)18.5617.17 17.23(10090)1017.22 17.31 (10085)202.5618.57 18.67(10090)1118.63 18.78 (10085)20.5619.17 19.23(10090)| 1019.22 19.31 (10085)螺紋下孔徑表（無屑絲攻用）美制粗牙螺紋（NRT）螺紋尺寸2B級螺紋用下孔徑3B級螺紋用下孔徑RH 精度最小最大 （嵌合率）RH精度最小最大 （嵌合率 ）NO. 2-56UNC41.96 2.02 (10065)31.95 2.01(10065)3-48

37、42.25 2.32 (10065)32.23 2.31(10065)4-4052.52 2.60 (10070)32.50 2.58(10070)5-4052.86 2.93 (10070)32.83 2.91(10070)6-3253.09 3.17 (10075)33.06 3.14(10075)8-3263.75 3.83 (10075)4P 3.74 3.82(10075)10-2464.26 4.35 (10080)44.24 4.32(10080)12-2464.92 5.01 (10080)44.90 4.96(10085)1/4 -2065.66 5.76 (10080)45

38、.64 5.74(10080)5/16 -1877.18 7.29 (10080)57.15 7.24(10085)3/8 -1678.66 8.78 (10080)5；8.63 8.73(10085)7/16 -14710.11 10.25 (10080)510.08 10.19(10085)1/2 -13810.62 11.78 (10080)6P 11.60 11.68(10090)9/16 -121013.14 13.27 (10085)8L 13.11 13.24(10085)5/8 -111114.62 14.76 (10085)8P 14.58 14.67(10090)3/4 -

39、101217.67 17.88 (10080)917.63 17.74(10090)7/8 - 91220.68 20.85 (10085)9P 20.64 20.75(10090)1 - 81323.65 23.84 (10085)1023.61 23.74(10090)螺紋下孔徑表（無屑絲攻用）美制細(xì)牙螺紋（NRT）（單位：mm）螺紋尺寸2B級螺紋用下孔徑3B級螺紋用下孔徑RH 精度最小最大 （嵌合率）RH 精度最小最大 （嵌合率 ）NO. 2-64UNF31.98 2.04 (10065):21.97 2.03 (10065) 13-5642.29 2.35 (10065):32.28

40、2.34 (10065) 14-4842.57 2.64 (10070)32.56 2.63 (10070)5-4442.88 2.95 (10070)32.87 2.94 (10070)6-4053.19 3.26 (10070)33.16 3.22 (10075)8-3653.80 3.88 (10075)43.79 3.86 (10075):10-3254.41 4.48 (10080)44.40 4.46 (10080)12-2855.00 5.08 (10080):44.99 5.06 (10080):1/4 -2855.86 5.93 (10080)45.85 5.92 (1008

41、0)5/16-2467.38 7.46 (10080)57.36 7.43 (10085)3/8 -2468.96 9.05 (10080)58.95 9.02 (10085)7/16-20710.44 10.54 (10080)510.41 10.49 (10085)1/2 -20712.02 12.12 (10080)512.00 12.05 (10090)9/16-18913.55 13.66 (10080)713.53 13.58 (10090)5/8 -18915.14 15.25 (10080)715.11 15.17 (10090)3/4 -161018.22 18.32 (10085)718.18 18.25 (10090)7/8 -141121.27 21.38 (10085)821.23 21 27 (10095)1 - 121224.28 24.41 (10085)924.24 24.32 (10090)螺紋尺寸RH精度最小最大（嵌合率 ）PF 1/869.24 9.35(10080)1/4712.4112.62(10075)3/8715.9216.12(10075)1/2819.9320.15(10080)3/4825.4125.64(10080)螺紋下孔徑表（無屑絲攻用）