各种螺纹详细参数和钻孔直径对照表

1、螺纹下孔径表 公制粗牙螺纹 JIS B 0209-1982(單位：mm)螺纹尺寸钻头直径崁合度區分：中(注1)2級(注2)下孔径崁合度區分：中(註1)2級(註2)內螺纹小径最小直径最大直径M 1 × 0.250.750.78 (80%)0.7290.7851.1 × 0.250.850.88 (80%)0.8290.8851.2 × 0.250.950.98 (80%)0.9290.9851.4 × 0.31.11.14 (80%)1.0751.1421.6 × 0.351.251.32 (75%)1.2211.3211.8 × 0.

2、351.451.52 (75%)1.4211.5212 × 0.41.61.65 (80%)1.5671.6792.2 × 0.451.751.83 (75%)1.7131.8382.5 × 0.452.12.13 (75%)2.0132.1383 × 0.52.52.59 (75%)2.4592.5993.5 × 0.62.93.01 (75%)2.8503.0104 × 0.73.33.39 (80%)3.2423.4224.5 × 0.753.83.85 (80%)3.6883.8785 × 0.84.24.

3、31 (80%)4.1344.3346 × 155.13 (80%)4.9175.1537 × 166.13 (80%)5.9176.1538 × 1.256.86.85 (85%)6.6476.9129 × 1.257.87.85 (85%)7.6477.91210 × 1.58.58.62 (85%)8.3768.67611 × 1.59.59.62 (85%)9.3769.67612 × 1.7510.310.40 (85%)10.10610.44114 × 21212.2 (85%)11.83512.210

4、16 × 21414.2 (85%)13.83514.21018 × 2.515.515.7 (85%)15.29415.74420 × 2.517.517.7 (85%)17.29417.74422 × 2.519.519.2 (85%)19.29419.74424 × 32121.2 (85%)20.75221.25227 × 32424.2 (85%)23.75224.25230 × 3.526.526.6 (90%)26.21126.77133 × 3.529.529.6 (90%)29.21129.771

5、36 × 43232.1 (90%)31.67032.27039 × 43535.1 (90%)34.67035.27042 × 4.537.537.6 (90%)37.12937.79945 × 4.540.540.6 (90%)40.12940.79948 × 54343.1 (90%)42.58743.297註(1)M1.4以下等級：5H、M1.6以上等級：6H(2)基於JIS B 0209-1982標準螺纹下孔径表 公制細牙螺纹 JIS B 0211-1982(單位：mm)螺纹尺寸钻头直径崁合度區分：中(注1)2級(注2)下孔径崁合度區

6、分：中(註1)2級(註2)內螺纹小径最小直径最大直径M 2.5 × 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%)4.9595.0996 × 0.755.35.35

7、 (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 ×

8、; 11010.13 (80%)9.91710.15311 × 0.7510.310.35 (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%)13.37613.67

9、615 × 11414.13 (80%)13.91714.15316 × 1.514.514.62 (85%)14.37614.67616 × 11515.13 (80%)14.91715.15317 × 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%)16.91717.153

10、20 × 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 × 1.520.520.62 (85%)20.37620.67622 × 12121.13 (80%)20.91721.15324 × 22222.2 (85%)21.83522.21024 × 1.522.522.62 (85%)22.37622.67624

11、× 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螺纹下孔径表 公制細牙螺纹 JIS B 0211-1982(單位：mm)螺纹尺寸钻头直径崁合度區分：中(注1)2級(注2)下孔径崁合度區分：中(註1)2級(註2)內螺纹小径最小直径最大直径M 26 × 1.524.524.62 (85%)24.37624.67627 × 22525.2 (8

12、5%)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%)27.83528.21030 × 1.528.528.62 (85%)

13、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%)32.7

14、5233.25236 × 23434.2 (85%)33.83534.21036 × 1.534.534.62 (85%)34.37634.67638 × 1.536.536.62 (85%)36.37636.67639 × 33636.2 (85%)35.75236.25239 × 23737.2 (85%)36.83537.21039 × 1.537.537.62 (85%)37.37637.67640 × 33737.2 (85%)36.75237.25240 × 23838.2 (85%)37.83538.

15、21040 × 1.538.538.62 (85%)38.37638.67642 × 43838.1 (90%)37.67038.27042 × 33939.2 (85%)38.75239.25242 × 24040.2 (85%)39.83540.21042 × 1.540.540.62 (85%)40.37640.67645 × 44141.1 (90%)40.67041.27045 × 34242.2 (85%)41.75242.25245 × 24343.2 (85%)42.83543.21045 

16、5; 1.543.543.62 (85%)43.37643.67648 × 44444.1 (90%)43.67044.27048 × 34545.2 (85%)44.75245.25248 × 24646.2 (85%)45.83546.21048 × 1.546.546.62 (85%)46.37646.67650 × 34747.2 (85%)46.75247.25250 × 24848.2 (85%)47.83548.21050 × 1.548.548.62 (85%)48.37648.676註(1)等級：6H(2)

17、基於JIS B 0211-1982標準螺纹下孔径表 美制粗牙螺纹 (單位：mm)螺纹尺寸钻头直径2B級 螺 纹下 孔 径內 螺 纹 小 径最小直径最大直径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%)2.1572.385 5 -402.62.69 (70%)2.4872.697 6 -322.82.86 (75%)2.6422.895 8 -323.43.52 (75%)3.3023.530 10 -243.93.91 (

18、80%)3.6833.962 12 -244.54.57 (80%)4.3444.5971/4 -205.15.25 (80%)4.9795.2575/16 -186.66.72 (80%)6.4016.731 3/8 -1688.15 (80%)7.7988.1537/16 -149.49.50 (80%)9.1449.550 1/2 -1310.811.0 (80%)10.59211.023 9/16 -1212.212.3 (85%)11.98912.446 5/8 -1113.613.8 (85%)13.38613.868 3/4 -1016.516.8 (80%)16.30716.8

19、40 7/8 - 919.519.6 (85%)19.17719.7611 - 822.222.5 (85%)21.97122.606 1 1/8 - 72525.2 (85%)24.63825.349 1 1/4 - 728.228.4 (85%)27.81328.524 1 3/8 - 630.831.0 (85%)30.35331.115 1 1/2 - 63434.2 (85%)33.52834.290 1 3/4 - 539.539.8 (85%)38.96439.827 2 - 4 45.245.3 (90%)44.67945.593螺纹下孔径表 美制細牙螺纹 (單位：mm)螺纹尺

20、寸钻头直径2B級 螺 纹下 孔 径內 螺 纹 小 径最小直径最大直径NO. 0 -80UNF1.251.30 (65%)1.1821.305 1 -721.551.61 (65%)1.4741.6122 -641.851.90 (65%)1.7561.9123 -562.12.17 (70%)2.0252.197 4 -482.42.44 (70%)2.2712.458 5 -442.72.74 (70%)2.5512.740 6 -402.93.02 (70%)2.8203.022 8 -363.53.59 (75%)3.4043.606 10 -324.14.14 (80%)3.9634.

21、165 12 -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%)8.3828.636 7/16 -209.910.01 (80%)9.72910.033 1/2 -2011.511.60 (80%)11.32911.607 9/16 -1812.913.07 (80%)12.75113.081 5/8 -1814.514.65 (80%)14.35114.681 3/4 -1617.517.59 (85%)17.32317.6787

22、/8 -1420.520.6 (85%)20.27020.6751 -1223.223.5 (85%)23.11423.571 1 1/8 -1226.526.7 (80%)26.28926.746 1 1/4 -1229.529.9 (80%)29.46429.921 1 3/8 -1232.833.0 (85%)32.63933.096 1 1/2 -123636.2 (85%)35.81436.271螺纹下孔径表 英制粗牙螺纹 (單位：mm) 螺纹尺寸下 孔 径嵌 合 率A列(硬材質)B列(軟材質)A列直径B列直径內螺纹最小径內螺纹最大径W 1/82.62.570.783.070.088

23、.33/163.73.678.485.870.088.31/45.15.076.983.070.588.35/166.66.574.099.570.188.43/88.07.975.080.069.588.27/169.49.373.780.069.088.81/210.710.573.881.269.088.29/1612.312.073.484.469.088.25/813.713.573.580.369.688.53/416.716.572.378.469.688.37/819.519.375.480.970.188.4122.422.073.883.671.088.21 1/825.0

24、24.876.981.372.088.41 1/428.328.074.380.772.088.41 3/830.530.381.685.373.888.61 1/233.833.579.384.873.888.61 5/836.035.781.185.774.888.31 3/439.239.080.783.874.888.31 7/841.841.580.684.774.788.4245.044.780.284.474.788.4螺纹下孔径表英制管用螺纹 (單位：mm) 管用螺纹尺寸JIS B 0203JIS B 2301錐管內螺纹Rc(PT)平行內螺纹Rp(PS)錐管內螺纹計 算 值下

25、孔 径計 算 值下 孔 径計 算 值下 孔 径 1/166.2306.26.4906.51/88.2358.28.4958.58.1918.21/410.94110.911.34111.410.94510.93/814.42814.414.84614.914.38814.41/217.9501818.48918.517.943183/423.3492323.9752423.30523129.4232930.1113029.353291 1/437.9403838.7723937.890381 1/243.8334444.5654543.72043255.4125556.4765655.4065

26、52 1/270.7017172.0097270.78870383.2018384.7098583.364833 1/295.5479697.1559795.747954107.834108109.855110108.3221085133.110133135.255135133.5971336158.510159160.655161158.8101587183.360183185.9541868208.560209211.3542129233.960234236.75423710259.166259262747310312.875313螺纹下孔径表 英制平行管用螺纹P

27、F(G) (單位：mm) 螺 纹下 孔 径 內螺纹小径(參考)尺 寸大 径標準嵌合高度H系 列 1009590858075706560最小直径最大直径G 1/167.7230.58086.566.626.686.746.796.856.916.977.036.8436.561G(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

28、.3815.4615.5515.6415.39514.9501/220.9551.161818.818.919.019.119.219.319.419.619.17218.6315/822.91120.620.720.820.921.021.221.321.421.521.13020.5893/426.44124.224.424.524.624.724.824.925.024.65824.1177/830.20127.928.028.128.228.338.528.628.728.828.41827.877133.24914.78630.330.430.630.730.931.031.231.

29、331.530.93130.2911 1/837.89735.135.235.435.535.735.835.936.535.57934.9391 1/441.91039.039.139.239.439.639.739.840.040.139.59238.9521 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 5/851.91049.249.349.549.649.849.950.050.249.67250.788

30、1 3/453.74650.850.951.151.251.451.551.752.052.051.42856.656259.61456.857.057.157.257.457.557.857.857.296使用粗線左側數據作為攻絲前的底孔直径，可加工符合JIS B 0202的A級或B級的內螺纹小径。 美制斜行管用螺纹 (NPTNPS) (單位：mm) 管用螺纹尺寸斜行螺纹(NPT)平行螺纹(NPS)钻头直径 钻头直径 使用鉸刀場合不使用鉸刀場合1/160.234 ( 5.94)0.246 ( 6.15)1/40.250 ( 6.35)1/821/640.328 ( 8.33)0.332 (

31、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)1/211/160.688 (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)1 5/321.156 (29

32、.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)1 23/321.719 (43.66)1 3/41.750 (44.45)22 11/642.172 (55.17)2 3/162.188 (55.58)2 7/322.219 (56.36)2 1/22 39/642.578 (65.48)2 39/642.609 (66.27)2 21/322.656 (67.46)上述钻头直径來源於美制管用螺纹ANSIASME B1.20.11983 Pipe Thread

33、s, General Purpose (Inch)標準。螺纹下孔径表 美制管用耐密斜行螺纹(NPTFNPSF) (單位：mm)管用螺纹尺寸斜行螺纹(NPTF)平行螺纹(NPSF) 钻头直径钻头直径 使用鉸刀場合不使用鉸刀場合1/160.234 ( 5.94)0.246 ( 6.25)1/40.250 ( 6.35)1/821/640.328 ( 8.33) 0.339 ( 8.61)11/320.344 ( 8.74)1/427/640.422 (10.72)7/160.438 (11.13)0.444 (11.28)3/89/160.562 (14.27)37/640.578 (14.68)

34、37/640.578 (14.68)1/211/160.688 (17.48)45/640.703 (17.86)23/320.719 (18.26)3/457/640.891 (22.63)59/640.922 (23.42) 0.922 (23.42)11 1/81.125 (28.58)1 5/321.156 (29.36)1 5/321.156 (29.36)1 1/41 15/321.469 (37.31)1 1/21.500 (38.10)1 1/21 45/641.703 (43.26)1 47/641.734 (44.04)22 3/162.188 (55.58)2 7/322

35、.219 (56.36)2 1/22 19/322.594 (65.89)2 41/642.641 (67.08)上述钻头直径來源於美制管用耐密斜行螺纹ANSI B1.20.31957 Dryseal Pipe Threads (Inch)標準。螺纹下孔径表(無屑絲攻用)公制螺纹(NRT) (單位：mm)螺纹尺寸1級螺纹用下孔径2級螺纹用下孔径RH精度最小最大(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)1.1×0.2520.97 0.99 (10085)41.00 1.02 (10080)1.

36、2×0.2521.07 1.09 (10085)41.10 1.12 (10080)1.4×0.321.244 1.263 (10085)41.270 1.294 (10080)1.7×0.3521.51 1.54 (10080)41.54 1.58 (10075)2 ×0.421.78 1.82 (10080)41.81 1.85 (10075)2.3×0.422.08 2.12 (10080)42.11 2.15 (10075)2.5×0.4522.25 2.29 (10080)42.28 2.33 (10075)2.6×

37、;0.4522.35 2.39 (10080)42.38 2.43 (10075)3 ×0.532.74 2.78 (10080)52.76 2.81 (10075)3.5×0.633.18 3.21 (10085)53.20 3.26 (10075)4 ×0.743.63 3.67 (10085)63.65 3.70 (10085)5 ×0.844.57 4.62 (10085)64.59 4.66 (10080)6 ×145.45 5.51 (10085)75.48 5.57 (10080)7 ×146.45 6.51 (1008

38、5)76.48 6.57 (10080)8 ×1.2557.31 7.38 (10085)77.34 7.41 (10085)8 ×147.45 7.51 (10085)77.48 7.57 (10080)10 ×1.559.16 9.22 (10090)79.18 9.28 (10085)10 ×1.2559.31 9.38 (10085)79.34 9.41 (10085)10 ×159.46 9.52 (10085)79.48 9.57 (10080)12 ×1.75511.01 11.08 (10090)811.05 11.1

39、5 (10085)12 ×1.5511.16 11.22 (10090)711.18 11.28 (10085)12 ×1.25511.31 11.38 (10085)711.34 11.41 (10085)12 ×1511.46 11.52 (10085)711.48 11.57 (10080)14 ×2612.83 12.95 (10090)1012.92 13.04 (10085)14 ×1.5513.16 13.22 (10090)913.21 13.30 (10085)16 ×2614.87 14.95 (10090)101

40、4.92 15.04 (10085)16 ×1.5515.16 15.22 (10090)915.21 15.30 (10080)18 ×2.5616.57 16.67 (10090)1116.63 16.78 (10085)18 ×1.5617.17 17.23 (10090)1017.22 17.31 (10085)20 ×2.5618.57 18.67 (10090)1118.63 18.78 (10085)20 ×1.5619.17 19.23 (10090)1019.22 19.31 (10085)螺纹下孔径表(無屑絲攻用)美制粗牙螺

41、纹(NRT) (單位：mm)螺纹尺寸2B級螺纹用下孔径3B級螺纹用下孔径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)3-4842.25 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)43.74 3

42、.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)45.64 5.74 (10080)5/16 -1877.18 7.29 (10080)57.15 7.24 (10085)3/8 -1678.66 8.78 (10080)58.63 8.73 (10085)7/16 -14710.11 10.25 (10080)510.08 10.19 (10085)1/2 -13810.62 11.78 (10080)61

43、1.60 11.68 (10090)9/16 -121013.14 13.27 (10085)813.11 13.24 (10085)5/8 -111114.62 14.76 (10085)814.58 14.67 (10090)3/4 -101217.67 17.88 (10080)917.63 17.74 (10090)7/8 - 91220.68 20.85 (10085)920.64 20.75 (10090)1 - 81323.65 23.84 (10085)1023.61 23.74 (10090) 螺纹下孔径表(無屑絲攻用)美制細牙螺纹(NRT) (單位：mm)螺纹尺寸2B級螺纹用下孔径3B級螺纹用下孔径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)3-5642.29 2.35 (10065)32.28 2.34 (10065)4-4842.57 2.64 (10070)32.56 2.63 (10070)5-