1、各种螺纹详细参数和钻孔直径对照表螺纹下孔径表 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 0.351.451.52 (75%)1.4211.521
2、2 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 0.84.24.31 (80%)4.1344.3346 155.13 (80%)4.9175.1537 166.13 (80%)5.9176.1538 1.256.86.85 (8
3、5%)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%)11.83512.21016 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
4、%)20.75221.25227 32424.2 (85%)23.75224.25230 3.526.526.6 (90%)26.21126.77133 3.529.529.6 (90%)29.21129.77136 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 0209-198
5、2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%)4.9595.0
6、996 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 0.7510.310.35 (80%
7、)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%)14.91715.15317 1.
8、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 1.520.520.62 (85%)20.37620.67622
9、 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
10、径M 26 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 3 2727.2 (85%)26.75227.25230 22828.2 (85%)27.83528.21030 1.528.528.62 (85%)28.376
11、28.67630 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%)33.83534.21036 1.534.534.62 (85%)34.37
12、634.67638 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%)37.83538.21040 1.538.538.62 (85%)38.37638.67642 43838.1 (90%)37.67038.27042 33939.2 (85%)38.75239.25242 24040.2 (85%)39.83540.2
13、1042 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 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
14、24848.2 (85%)47.83548.21050 1.548.548.62 (85%)48.37648.676註(1)等級：6H(2)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 -
15、322.82.86 (75%)2.6422.895 8 -323.43.52 (75%)3.3023.530 10 -243.93.91 (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
16、.446 5/8 -1113.613.8 (85%)13.38613.868 3/4 -1016.516.8 (80%)16.30716.840 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%
17、)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 (
18、70%)2.8203.022 8 -363.53.59 (75%)3.4043.606 10 -324.14.14 (80%)3.9634.165 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
19、5/8 -1814.514.65 (80%)14.35114.681 3/4 -1617.517.59 (85%)17.32317.6787/8 -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
20、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 1/82.62.570.783.070.088.33/163.73.678.485.870.088.31/45.15.076.983.070.588.35/166.66.574.099.570.188.43/88.07.975.080.069.588.27/169.49.373.780.069.088.81/210.710.573.881.269.088.29/1612.312.073.484.469.088.25/813.713.573.580.369.688.53/416.716.572.378.
21、469.688.37/819.519.375.480.970.188.4122.422.073.883.671.088.21 1/825.024.876.981.372.088.41 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
22、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 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 1/437.9403
23、838.7723937.890381 1/243.8334444.5654543.72043255.4125556.4765655.406552 1/270.7017172.0097270.78870383.2018384.7098583.364833 1/295.5479697.1559795.747954107.834108109.855110108.3221085133.110133135.255135133.5971336158.510159160.655161158.8101587183.360183185.9541868208.560209211.3542129233.960234236.75423710259.166259262.15426212309.747310312.875313螺纹下孔径表 英制平行管用螺纹PF(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 10095908580757
