英制螺丝规格对照表.pdf

英制普通螺纹 (惠氏螺纹) -- 小螺纹系列 (BA)名义尺寸牙型代号大径螺距每英寸牙 数中径小径牙型高 BAmmmmtpimm外螺纹H1 d=Dpd2=D2d3 No. 14BA10.23110.40.860.720.14 No. 13BA1.20.25101.61.050.90.15 No. 12BA1.30.2890.711.130.960.17 No. 11BA1.50.3181.931.3151.130.185 No. 10BA1.70.3572.571.491.280.21 No. 9BA1.90.3965.121.6651.430.235 No. 8BA2.20.4359.071.941.680.26 No. 7BA2.50.4852.922.211.920.29 No. 6BA2.80.5347.922.482.160.32 No. 5BA3.20.5943.052.8452.490.355 No. 4BA3.60.6638.483.2052.810.395 No. 3BA4.10.7334.793.663.220.44 No. 2BA4.70.8131.354.2153.730.485 No. 1BA5.30.928.224.764.220.54 No. 0BA6125.45.44.80.655555555° ° ° °圆锥管螺纹型式和尺寸圆锥管螺纹型式和尺寸（2006-03-13 14:38:47 ）螺纹代号基本尺寸大径螺距每英寸牙 数中径小径牙型高度 英 寸mmmmtpimm外螺纹H1 d=Dpd2=D2d3 R 1/161/16＂7.7230.907287.1426.5610.581 R 1/81/8＂9.7280.907289.1478.5660.581 R 1/41/4＂13.1571.3371912.30111.4450.856 R 3/83/8＂16.6621.3371915.80614.950.856 R 1/21/2＂20.9551.8141419.79318.6311.162 R 3/43/4＂26.4411.8141425.27924.1171.162 R 11＂33.2492.3091131.7730.2911.479 R 1 1/41 1/4＂41.912.3091140.43138.9521.479 R 1 1/21 1/2＂47.8032.3091146.32444.8451.479 R 22＂59.6142.3091158.13556.6561.479 R 2 1/22 1/2＂75.1842.3091173.70572.2261.479 R 33＂87.8842.3091186.40584.9261.479 R 44＂113.032.30911111.551110.0721.479 R 55＂138.432.30911136.951135.4721.479 R 66＂163.832.30911162.351160.8721.479制惠氏螺纹的型式尺寸制惠氏螺纹的型式尺寸 英制普通螺纹 (惠氏螺纹) -- 粗牙 (BSW)名义尺寸牙型代号大径螺距每英寸牙 数中径小径牙型高 Wwmmmmtpimm外螺纹H1 d=Dpd2=D2d3 1/16＂BSW1.5870.423601.3151.050.27 3/32＂BSW2.3810.529482.0411.7030.338 1/8＂BSW3.1750.635402.7682.3620.406 5/32＂BSW3.9690.793323.4592.9520.507 3/16＂BSW4.7621.058244.0843.4070.677 7/32＂BSW5.5561.058244.8784.2010.677 1/4＂BSW6.351.27205.5374.7240.813 5/16＂BSW7.9381.411187.0346.1310.904 3/8＂BSW9.5251.588168.5097.4921.017 7/16＂BSW11.1131.814149.9518.7891.162 1/2＂BSW12.72.1171211.3459.991.355 5/8＂BSW15.8762.3091114.39712.9181.479 3/4＂BSW19.0512.541017.42415.7981.627 7/8＂BSW22.2262.822920.41918.6111.807 1＂BSW25.43.175823.36821.3352.033 1 1/8＂BSW28.5763.629726.25323.9292.324 1 1/4＂BSW31.7513.629729.42827.1042.324 1 3/8＂BSW34.9264.233632.21529.5052.711 1 1/2＂BSW38.14.233635.39132.682.711 1 5/8＂BSW41.2775.08538.02434.7713.253 1 3/4＂BSW44.4525.08541.19937.9463.253 1 7/8＂BSW47.6275.6454 1/244.01240.3983.614 2＂BSW50.8025.6454 1/247.18743.5733.614 2 1/4＂BSW57.1526.35453.08649.024.066 2 1/2＂BSW63.5026.35459.43655.374.066 2 3/4＂BSW69.8537.2573 1/265.20560.5584.647 3＂BSW76.2037.2573 1/271.55666.9094.647 3 1/4＂BSW82.5537.8163 1/477.54872.5445.005 3 1/2＂BSW88.9037.8163 1/483.89978.8945.005 3 3/4＂BSW95.2548.467389.83284.415.422 4＂BSW101.6048.467396.18290.765.422 4 1/4＂BSW107.9548.8352 7/8102.29796.6395.657 4 1/2＂BSW114.3048.8352 7/8108.647102.995.657 4 3/4＂BSW120.6659.2372 3/4114.74108.6255.915 5＂BSW127.0059.2372 3/4121.09115.1765.915 5 1/4＂BSW133.3559.6772 5/8127.159120.9636.196 5 1/2＂BSW139.7059.6772 5/8133.509127.3136.196 5 3/4＂BSW146.05510.162 1/2139.549133.0436.506 6＂BSW152.40610.162 1/2145.9139.3946.506英制普通螺纹英制普通螺纹 - - - -- - - - 细牙细牙 - - - -- - - - BSFBSFBSFBSF英制普通螺纹 (惠氏螺纹) -- 细牙 (BSW)名义尺寸牙型代号大径螺距每英寸牙 数中径小径牙型高 BSFmmmmtpimm外螺纹H1 d=Dpd2=D2d3 3/16BSF4.7630.794324.2553.7470.508 7/32BSF5.5560.907284.9754.3940.581 1/4BSF6.350.977265.7255.10.625 9/32BSF7.1420.977266.5185.8930.625 5/16BSF7.9381.156227.1996.4590.739 3/8BSF9.5251.27208.7127.8990.813 7/16BSF11.1131.4111810.2099.3040.904 1/2BSF12.71.5881611.68410.6681.017 9/16BSF14.2881.5881613.27212.2561.017 5/8BSF15.8751.8141414.71213.5491.162 11/16BSF17.4631.8141416.315.1371.162 3/4BSF19.052.1171217.69316.3361.355 13/16BSF20.6382.1171219.28117.9241.355 7/8BSF22.2252.3091120.74719.2691.479 1.00 BSF25.42.541023.77422.1481.627 1 1/8BSF28.5752.822926.76924.9631.807 1 1/4BSF31.752.822929.94428.1381.807 1 3/8BSF34.9253.175832.89330.8612.033 1 1/2BSF38.13.175836.06834.0362.033 1 5/8BSF41.2753.175839.24337.2112.033 1 3/4BSF44.453.629742.12639.8022.324 2 BSF50.83.629748.47646.1522.324 2 1/4BSF57.154.234654.4451.732.711 2 1/2BSF63.54.234660.7958.082.711 2 3/4BSF69.854.234667.1464.432.711 3 BSF76.25.08572.94669.6923.253 3 1/4BSF82.555.08579.29676.0423.253 3 1/2BSF88.95.6454 1/285.28581.673.614 3 3/4BSF95.255.6454 1/291.63588.023.614 4 BSF101.65.6454 1/297.98594.373.614 4 1/4BSF107.956.354103.88699.8224.06655555555° ° ° °圆柱管螺纹的型式和尺寸圆柱管螺纹的型式和尺寸 British Pipe Thread (惠氏管螺纹) -- 圆柱 (BSPP/BSPF)螺纹代号基本尺寸大径螺距每英寸牙 数中径小径牙型高度 mmmmtpimm外螺纹H1 d=Dpd2=D2d3 G 1/81/8＂9.7280.907289.1478.5660.581 G 1/41/4＂13.1571.3371912.30111.4450.856G 3/83/8＂16.6621.3371915.80614.950.856 G 1/21/2＂20.9551.8141419.79318.6311.162 G 5/85/8＂22.9111.8141421.74920.5871.162 G 3/43/4＂26.4411.8141425.27924.1171.162 G 7/87/8＂30.2011.8141429.03927.8771.162 G 11＂33.2492.3091131.7730.2911.479 G 1 1/81 1/8＂37.8972.3091136.41834.9391.479 G 1 1/41 1/4＂41.912.3091140.43138.9521.479 G 1 3/81 3/8＂44.3232.3091142.84441.3651.479 G 1 1/21 1/2＂47.8032.3091146.32444.8451.479 G 1 3/41 3/4＂53.7462.3091152.26750.7881.479 G 22＂59.6142.3091158.13556.6561.479 G 2 1/42 1/4＂65.712.3091164.23162.7521.479 G 2 1/22 1/2＂75.1842.3091173.70572.2261.479 G 2 3/42 3/4＂81.5342.3091180.05578.5761.479 G 33＂87.884。