螺纹加工底孔直径对照表.doc

. .螺纹加工底孔直径对照表本文件包含内容公制粗螺纹2级牙底孔径对照表公制细螺纹2级牙底孔径对照表美制粗螺纹2级牙底孔径对照表美制细螺纹2级牙底孔径对照表公制迫牙丝攻钻孔径对照表美制迫牙丝攻钻孔径对照表美制特细螺纹2级牙底孔径对照表英制电器螺纹底孔径对照表英制管螺纹(PS底孔径对照表英制管螺纹(PT底孔径对照表美制管螺纹(NPT、NPS底孔径对照表英制螺纹(UNEF底孔径对照表公制螺纹滚造径底孔径对照表针车用其所长螺纹滚造径底孔径对照表英制圆柱管螺纹(55度加工一览表英制锥管螺纹(55度加工一览表布锥管螺纹加工一览表美制UNC、UNF螺纹参数表惠氏BSW、BSF螺纹参数表公制螺纹特殊材质工件加工底孔径对照表非密封管螺纹底孔径对照表英制锥管螺纹和英制锥螺纹攻丝前钻底孔的钻头直径日标英制锥度管螺纹底孔径对照表英制平行管螺纹底孔径对照表美制管用螺纹使用/不使用铰刀底孔径对照表圆锥管螺纹新旧国标、日标底孔径对照表圆柱管螺纹新旧国标、日标底孔径对照表布锥管螺纹新旧国标、日标底孔径对照表公制粗牙铜、铁、不锈钢、铝质工件底孔径对照表公制细牙铜、铁、不锈钢、铝质工件底孔径对照表60度圆锥管螺纹钻/镗孔底孔径对照表60度圆柱管螺纹钻/镗孔底孔径对照表 公制粗螺纹规格标准径2级牙钻孔径最大最小M1.0×0.250.75 0.785 0.729 M1.1×0.250.85 0.885 0.829 M1.2×0.250.95 0.985 0.985 M1.4×0.31.10 1.142 1.075 M1.6×0.351.25 1.321 1.221 M1.7×0.351.35 1.421 1.321 M1.8×0.351.45 1.521 1.421 M2.0×0.41.60 1.679 1.567 M2.2×0.451.75 1.838 1.713 M2.3×0.41.90 1.979 1.867 M2.5×0.452.10 2.138 2.013 M2.6×0.452.20 2.238 2.113 M3.0×0.52.50 2.599 2.459 M3.0×0.62.40 2.440 2.280 M3.5×0.62.90 3.010 2.850 M4.0×0.73.30 3.422 3.242 M4.0×0.753.25 3.326 3.106 M4.5×0.753.80 3.878 3.688 M5.0×0.84.20 4.334 4.134 M5.0×0.94.10 4.170 3.930 M6.0×1.05.00 5.153 4.917 M7.0×1.06.00 6.153 5.917 M8.0×1.256.80 6.912 6.647 M9.0×1.257.80 7.912 7.647 M10×1.58.50 8.676 8.376 M11×1.59.50 9.676 9.376 M12×1.7510.30 10.441 10.106 M14×2.012.00 12.210 11.835 M16×2.014.00 14.210 13.835 M18×2.515.50 15.744 15.294 M20×2.517.50 17.744 17.294 M22×2.519.50 19.744 19.294 M24×3.021.00 21.252 20.752 M27×3.024.00 24.252 23.752 M30×3.526.50 26.771 26.211     公制细螺纹规格标准径2级牙钻孔径最大最小M1.0×0.20.80 0.8210.783M1.1×0.20.90 0.9210.883M1.2×0.21.00 1.0210.983M1.4×0.21.20 1.2211.183M1.6×0.21.40 1.4211.383M1.7×0.21.45 1.500 1.460 M1.8×0.21.60 1.621 1.583 M2.0×0.251.75 1.7851.729 M2.2×0.251.95 1.985 1.929 M2.3×0.252.05 2.061 2.001 M2.5×0.352.20 2.221 2.121 M2.6×0.352.20 2.246 2.186 M3.0×0.352.70 2.721 2.621 M3.5×0.353.20 3.221 3.121 M4.0×0.53.50 3.599 3.459 M4.5×0.54.00 4.099 3.959 M5.0×0.54.50 4.599 4.459 M5.5×0.55.00 5.099 4.959 M6.0×0.755.30 5.378 5.188 M6.0×0.55.50 5.550 5.400 M7.0×0.756.30 6.378 6.188 M7.0×0.56.50 6.550 6.400 M8.0×1.07.00 7.153 6.917 M8.0×0.757.30 7.378 7.188 M8.0×0.57.50 7.520 7.400 M9.0×1.08.00 8.153 7.917 M9.0×0.758.30 8.378 8.188 M10×1.258.80 8.912 8.647 M10×1.09.00 9.153 8.917 M10×0.759.30 9.378 9.188 M10×0.59.50 9.520 9.400 M11×1.010.00 10.153 9.917 M11×0.7510.30 10.378 10.188 M12×1.510.50 10.676 10.376 M12×1.2510.80 10.912 10.647 M12×1.011.00 11.153 10.917 M12×0.511.50 11.520 11.400 M14×1.512.50 12.676 12.376 M14×1.013.00 13.153 12.917 M15×1.513.50 13.676 13.376 M15×1.014.00 14.153 13.917 M16×1.514.50 14.676 14.376 M16×1.015.00 15.153 14.917 M17×1.515.50 15.676 15.376 M17×1.016.00 16.153 15.917 M18×2.016.00 16.210 15.835 M18×1.516.50 16.676 16.376 M18×1.017.00 17.153 16.917 M20×2.018.00 18.210 17.835 M20×1.518.50 18.676 18.376 M20×1.019.00 19.153 18.917 M22×2.020.00 20.210 19.835 M22×1.520.50 20.676 20.376 M22×1.021.00 21.153 20.917 M24×2.022.00 22.210 21.835 M24×1.522.50 22.676 22.376 M24×1.023.00 23.153 22.917 M25×2.023.00 23.210 22.835 M25×1.523.50 23.676 23.376 M25×1.024.00 24.153 23.917 M26×1.524.50 24.676 24.376 M27×2.025.00 25.210 24.835 M27×1.525.50 25.676 25.376 M27×1.026.00 26.153 25.917 M28×2.026.00 26.210 25.835 M28×1.526.50 26.676 26.376 M28×1.027.00 27.15326.917 M30×3.027.00 27.25226.752 M30×2.028.00 28.210 27.835 M30×1.528.50 28.676 28.376 M30×1.029.00 29.153 28.917 M32×2.030.00 30.210 29.835 M32×1.530.50 30.676 30.376M33×3.030.00 30.252 29.752 M33×2.031.00 31.210 30.835 M33×1.531.50 31.676 31.376 M35×1.533.50 33.676 33.376 M36×3.033.00 33.252 32.752 M36×2.034.00 34.210 33.835 M36×1.534.50 34.676 34.376     美制粗螺纹规格UNC标准径2级牙钻孔径最大最小NO.1-64(1.854)1.55 1.5821.425NO.2-56(2.184)1.80 1.8711.695NO.3-48(2.515)2.10 2.1461.941NO.4-40(2.845)2.30 2.3852.157NO.5-40(3.175)2.60 2.6972.487NO.6-32(3.505)2.80 2.8952.642NO.8-32(4.166)3.40 3.533.302NO.10-24(4.826)3.90 3.9623.683NO.12-24(5.486)4.50 4.5974.3441/4-205.10 5.2574.9795/16-186.60 6.7316.4013/8-168.00 8.1537.7987/16-149.40 9.559.1441/2-1310.80 11.02310.5929/16-1212.20 12.44611.9895/8-1113.60 13.86813.3863/4-1016.50 16.840 16.3077/8-919.50 19.761 19.177122.20 22.606 21.9711-1/8-725.00 25.349 24.6381-1/4-728.20 28.524 27.8131-3/8-630.80 31.115 30.3531-1/2-634.00 34.290 33.5281-3/4-539.50 39.827 38.9642-4-1/245.20 45.593 44.679    美制细螺纹规格UNF标准径2级牙钻孔径最大最小NO.0-80(1.524)1.25 1.3051.182NO.1-72(1.854)1.55 1.6121.474NO.2-64(2.184)1.85 1.9121.756NO.3-56(2.515)2.10 2.1972.025NO.4-48(2.845)2.40 2.4582.271NO.5-44(3.175)2.70 2.740 2.551NO.6-40(3.505)2.90 3.022 2.820 NO.8-36(4.166)3.50 3.606 3.404 NO.10-32(4.826)4.10 4.165 3.963 NO.12-28(5.846)4.60 4.724 4.496 1/4-285.50 5.588 5.360 5/16-246.90 7.035 6.782 3/8-248.50 8.636 8.382 7/16-209.90 10.033 9.729 1/2-2011.50 11.607 11.329 9/16-1812.90 13.081 12.751 5/8-1814.50 14.681 14.351 3/4-1617.50 17.678 17.323 7/8-1420.50 20.675 20.270 1-1223.20 23.571 23.114 1-1/8-1226.50 26.746 26.289 1-1/4-1229.50 29.921 29.464 1-3/8-1232.80 33.096 32.639 1-1/2-1236.00 36.271 35.814     公制迫牙丝攻钻孔径规格精度等级G4-G6G7-G8G9M1.0×0.250.860.88M1.1×0.250.960.98M1.2×0.251.061.08M1.4×0.31.241.25M1.6×0.351.411.43M1.7×0.351.511.53M1.8×0.351.611.63M2.0×0.41.781.80 M2.2×0.451.951.98 M2.3×0.42.082.10 M2.5×0.452.252.28 M2.6×0.452.352.38 M3.0×0.52.732.75 M3.5×0.63.173.20 M4.0×0.73.623.65 3.69M5.0×0.84.564.60 4.64M6.0×1.05.455.50 5.55M7.0×1.06.456.50 6.55M8.0×1.257.317.38 7.44M10×1.59.189.25 9.32M10×1.259.319.38 9.44M12×1.7511.0411.12 11.21M12×1.2511.3111.38 11.44    美制迫牙丝攻钻孔径规格精度等级G4-G6G7-G8G9NO.2-56UNC1.94 NO.3-482.23 NO.4-402.50 NO.5-402.83 NO.6-323.07 NO.8-323.73 3.77NO.10-244.24 4.3NO.12-244.90 4.961/4-205.725/16-187.243/8-168.748.817/16-1410.20 10.30 1/2-1311.27 11.82NO.2-64UNF1.97 NO.3-562.27 NO.4-482.56 NO.5-442.86 NO.6-403.16 NO.8-363.78 NO.10-324.39 4.43 NO.12-284.99 5.04 1/4-285.85 5.90 5/16-247.36 7.41 3/8-249.00 7/16-2010.48 10.541/2-2012.07 12.13    美制特细螺纹规格(UNEF)标准径2级牙钻孔径最大最小NO.12-324.70 4.826 4.623 1/4 -325.60 5.690 5.486 5/16 -327.10 7.264 7.087 3/8 -328.70 8.865 8.661 7/16 -2810.20 10.338 10.135 1/2 -2811.80 11.938 11.709 9/16 -2413.20 13.386 13.132 5/8 -2414.80 14.986 14.732 3/4 -2017.80 17.958 17.678 7/8 -2021.00 21.133 20.853 1 -2024.00 24.308 24.028     英制电器螺纹规格钻孔径英制管螺纹规格标准径钻孔径最大最小英制管螺纹规格标准径有交牙部之长度最小中之毋螺牙内径标准长度最小中之毋螺牙内径使用纹刀时不用纹刀时美制管螺纹规格钻孔径NPTNPS使用绞刀时不用绞刀时1/16 - 276.10 6.25 6.35 1/8 - 278.33 8.43 8.74 1/4 - 1810.72 11.13 11.13 3/8 - 1814.27 14.27 14.68 1/2 - 1417.48 17.86 18.26 3/4 - 1422.63 23.01 23.42 1 - 11-1/228.58 28.98 29.36 1-1/4-11-1/237.31 37.69 38.10 1-1/2-11-1/243.66 44.04 44.45 2 - 11 - 1/255.58 55.96 56.36     英制螺纹规格(UNEF)钻孔径硬材软材W 1/8 - 402.65 2.60 W 5/32 - 323.25 3.20 W 3/16 - 243.75 3.70 W 1/4 - 205.10 5.00 W 5/16 - 186.60 6.50 W 3/8 - 168.00 7.90 W 7/16 - 149.40 9.30 W 1/2 - 1210.70 10.50 W 9/16 - 1212.30 12.00 W 5/8 - 1113.70 13.50 W 3/4 - 1016.70 16.50 W 7/8 - 919.50 19.30 W1 - 822.40 22.00 W 1-1/8 - 725.00 24.80 W 1 - 1/4 - 728.30 28.00    公制螺纹规格滚造径针车用螺纹规格滚造径G 英制圆柱管螺纹55°加工一览表小径：d1=d-1.2807t公称直径牙/寸螺距t底孔深度螺纹大径1/8280.9078.5014.09.72901/4191.33711.5020.013.15803/8191.33715.0020.016.66301/2141.81418.5027.520.95605/8141.81420.5027.522.91203/4141.81424.0027.526.44207/8141.81428.0027.530.20211112.30930.5035.033.25001 1/8112.30935.0035.037.89801 1/4112.30939.0035.041.91201 3/8112.30941.5035.044.32501 1/2112.30945.0035.047.80501 3/4112.30951.0035.053.74802112.30957.0035.059.61602 1/4112.30963.0035.065.71202 1/2112.30972.5035.075.18702 3/4112.30979.0035.081.5370      ZG  英制锥管螺纹55°加工一览表小径：d1=d-1.2807t    公称直径牙/寸螺距底孔深度螺纹大径1/8280.9078.57-8.2714.09.72901/4191.33711.5-11.120.013.15803/8191.33715.0-14.620.016.66301/2141.81418.6-18.227.020.95603/4141.81424.1-23.527.026.44201112.30930.3-29.635.033.25001 1/4112.30939.0-38.135.041.91201 1/2112.30944.8-44.035.047.80502112.30956.7-55.735.059.61602 1/2112.30972.2-71.135.075.8170      注意：底孔尺寸均为加工螺纹孔时专用尺寸。深度尺寸均为加工螺纹孔时孔深度尺寸。  规定为15倍螺距Z  圆锥管螺纹布锥管螺纹 60°小径：d1=d-1.6t    公称直径牙/寸螺距t底孔深度螺纹大径1/16270.9416.4-6.115.07.89501/8270.9418.8-8.515.010.27201/4181.41111.3-1121.013.57203/8181.41114.8-14.421.017.05501/2141.81418.3-17.827.021.22303/4141.81423.7-23.127.026.5980111 1/22.20929.7-29.133.033.22801 1/411 1/22.20938.5-37.833.041.98501 1/211 1/22.20944.5-43.933.048.0540211 1/22.20956.6-55.933.060.0920      美制螺纹UNC、UNF参数表60°小径：d1=d-1.082532t     尺寸代号公称直径in公称直径mm每英寸粗牙数/螺纹粗牙底孔-深度每英寸细牙数/螺距细牙底孔-深度1/40.25006.3520/1.275.0-1928/0.915.5-145/160.31257.9418/1.416.5-2124/1.067.0-163/80.37509.5316/1.597.8-2424/1.068.5-167/160.437511.1114/1.819.2-2720/1.2710.0-191/20.500012.7013/1.9510.6-2920/1.2711.5-199/160.562514.2912/2.1212.0-3218/1.4113.0-215/80.625015.8811/2.3113.5-3518/1.4114.5-213/40.750019.0510/2.5416.5-3816/1.5917.5-247/80.875022.239/2.8219.2-4214/1.8120.5-2711.000025.408/3.1822.0-4812/2.1223.5-321 1/81.125028.587/3.6325.0-5512/2.1226.5-321 1/41.250031.757/3.6328.0-5512/2.1229.5-321 3/81.375034.936/4.2330.5-6412/2.1233.0-321 1/21.500038.106/4.2338.0-6412/2.1236.0-321 3/41.750044.455/5.0839.0-7622.000050.804.5/5.6445.0-85       注意：in为英寸符号，一英寸等于25.4毫米。底孔尺寸均为加工螺纹孔时专用尺寸。深度尺寸均为加工螺纹孔时孔深度尺寸。  规定为15倍螺距惠氏螺纹BSW、BSF参数表55°小径：d1=d-1.280655t    公称直径in公称直径mm每英寸粗牙数/螺距粗牙底孔-深度每英寸细牙数/螺距细牙底孔-深度1/83.1840/0.6352.4-103/164.7624/1.0583.4-1632/0.7943.8-127/325.5628/0.9074.4-141/46.3520/1.2704.8-1926/0.9775.1-159/327.1426/0.9776.0-155/167.9418/1.4116.2-2122/1.1556.5-173/89.5316/1.5887.5-2420/1.2708.0-197/1611.1114/1.8148.8-2718/1.4119.4-221/212.7012/2.11710.0-3216/1.58810.8-249/1614.2912/2.11711.6-3216/1.58812.4-245/815.8811/2.30913.0-3514/1.81413.6-2711/1617.4611/2.30914.5-3514/1.81415.2-273/419.0510/2.54015.8-3812/2.11716.4-327/822.239/2.82218.6-4211/2.30919.4-35125.408/3.17521.4-4810/2.54022.2-381 1/828.587/3.62924.0-549/2.82225.0-421 1/431.757/3.62927.2-549/2.82228.2-421 3/834.938/3.17531.0-481 1/238.106/4.23332.8-638/3.17534.2-481 5/841.288/3.17537.4-481 3/444.455/5.08038.0-767/3.62940.0-54250.804.5/5.64443.6-857/3.62946.2-542 1/457.154/6.35049.0-956/4.23351.8-632 1/263.504/6.35055.4-956/4.23358.2-63      注意：in为英寸符号，一英寸等于25.4毫米。底孔尺寸均为加工螺纹孔时专用尺寸。深度尺寸均为加工螺纹孔时光孔深度尺寸。  规定为15倍螺距惠氏螺纹为紧固件螺纹。公称直径为螺纹大径。普通螺纹攻螺纹前底孔的钻头直径非密封管螺纹攻螺纹前钻底孔的钻头直径螺纹公称直径"1/81/43/81/23/41 1 1/41 3/81 1/2每25.4mm内牙数281919141411111111钻头直径mm8.811.715.218.924.430.639.241.345.1          英制锥管螺纹和英制锥螺纹攻丝前钻底孔的钻头直径英制锥管螺纹英制锥螺纹公称直径每25.4mm钻头直径公称直径每25.4mm钻头直径"内牙数mm"内牙数mm1/8288.41/8278.61/41911.21/41811.13/81914.73/81814.51/21418.31/21417.93/41423.63/41423.21 1129.71 111/229.21 1/41138.31 1/4111/237.91 1/21144.11 1/2111/243.92 1155.82 111/256      螺纹底孔明细公 制螺纹规格螺距钻孔直径钻孔深度螺纹深度M30.52.585M40.73.385M50.84.21411M6151512M81.256.71815M101.58.52017M121.7510.32017M142122522M162142522M182.515.5M202.517.5M222.519.5M24321M27324M303.526.5M333.529.5M36432M10×119M12×1.51.510.5M14×1.51.512.51816M16×1.51.514.52017M18×1.51.516.52017M20×1.51.518.520