攻牙底孔的使用參數表一、螺紋下孔徑表1、公制粗牙螺紋 JIS B 0209-1982(單位：mm)螺紋尺寸鉆頭直徑螺紋下孔徑內螺紋小徑最小直徑最大直徑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%)1.4211.5212 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 0.84.24.31 (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%)11.83512.21016 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%)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 0209-1982標準2、公制細牙螺紋-01 JIS B 0211-1982(單位：mm)螺紋尺寸鉆頭直徑螺紋下孔徑內螺紋小徑最小直徑最大直徑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 (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%)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 1.515.515.62 (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 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 公制細牙螺紋-02 JIS B 0211-1982(單位：mm)螺紋尺寸鉆頭直徑螺紋下孔徑內螺紋小徑最小直徑最大直徑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%)28.37628.67630 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%)32.75233.25236 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%)37.83538.21040 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 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)基於JIS B 0211-1982標準3、美制粗牙螺紋 (單位：mm)螺紋尺寸鉆頭直徑2B級螺紋下孔徑內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%)2.1572.385 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 (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%)16.30716.840 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%)38.96439.827 2 - 4 45.245.3 (90%)44.67945.593 4、美制細牙螺紋 (單位：mm)螺紋尺寸鉆頭直徑2B級螺紋下孔徑內螺紋小徑最小直徑最大直徑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%)3.9634.165 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%)17.32317.6787/8 -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 5、英制粗牙螺紋 (單位：mm) 螺紋尺寸下 孔 徑嵌 合 率A列(硬材質)B列(軟材質)A列直徑B列直徑內螺紋最小徑內螺紋最大徑W 1/82.62.570.783.070.088.33/163.73.678.485.870.088.31/45.15.076.983.070.588.35/166.66.574.099.570.188.43/88.07.975.080.069.588.27/169.49.373.780.069.088.81/210.710.573.881.269.088.29/1612.312.073.484.469.088.25/813.713.573.580.369.688.53/416.716.572.378.469.688.37/819.519.375.480.970.188.4122.422.073.883.671.088.21 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 7/841.841.580.684.774.788.4245.044.780.284.474.788.46、英制管用螺紋 (單位：mm) 管用螺紋尺寸JIS B 0203JIS B 2301錐管內螺紋Rc(PT)平行內螺紋Rp(PS)錐管內螺紋計 算 值下 孔 徑計 算 值下 孔 徑計 算 值下 孔 徑 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 1/243.8334444.5654543.72043255.4125556.4765655.406552 1/270.7017172.0097270.78870383.2018384.7098583.364833 1/295.5479697.1559795.747954107.834108109.855110108.3221085133.110133135.255135133.5971336158.510159160.655161158.8101587183.360183185.954186 8208.560209211.354212 9233.960234236.754237 10259.166259262.154262 12309.747310312.875313 7、美制管用耐密斜行螺紋(NPTFNPSF) (單位：mm)管用螺紋尺寸斜行螺紋(NPTF)平行螺紋(NPSF) 鑽頭直徑鑽頭直徑 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)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 7/322.219 (56.36)2 1/22 19/322.594 (65.89)2 41/642.641 (67.08)上述鑽頭直徑來源於美制管用耐密斜行螺紋ANSI B1.20.31957 Dryseal Pipe Threads (Inch)標準8、公制螺紋(NRT) (單位：mm)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)1.10.2520.97 0.99 (10085)41.00 1.02 (10080)1.20.2521.07 1.09 (10085)41.10 1.12 (10080)1.40.321.244 1.263 (10085)41.270 1.294 (10080)1.70.3521.51 1.54 (10080)41.54 1.58 (10075)2 0.421.78 1.82 (10080)41.81 1.85 (10075)2.30.422.08 2.12 (10080)42.11 2.15 (10075)2.50.4522.25 2.29 (10080)42.28 2.33 (10075)2.60.4522.35 2.39 (10080)42.38 2.43 (10075)3 0.532.74 2.78 (10080)52.76 2.81 (10075)3.50.633.18 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 (10085)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 11.15 (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)1014.92 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 (1009