标准英制螺纹规格表【一览表】

('英制螺纹是螺纹尺寸用英制标注，按外形分圆柱、圆锥两种；按牙型角分55°、60°两种。螺纹中的1/4、1/2、1/8标记是指螺纹尺寸的直径，单位是英寸。一英寸等于8分，1/4英寸就是2分，如此类推。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底孔直径BAmmmmtpimm外螺纹H1mmd=Dpd2=D2d3No.14BA10.23110.40.860.720.140.75No.13BA1.20.25101.61.050.90.150.95No.12BA1.30.2890.711.130.960.171No.11BA1.50.3181.931.3151.130.1851.2No.10BA1.70.3572.571.491.280.211.35No.9BA1.90.3965.121.6651.430.2351.5No.8BA2.20.4359.071.941.680.261.8No.7BA2.50.4852.922.211.920.292No.6BA2.80.5347.922.482.160.322.3No.5BA3.20.5943.052.8452.490.3552.6No.4BA3.60.6638.483.2052.810.3952.95No.3BA4.10.7334.793.663.220.443.4No.2BA4.70.8131.354.2153.730.4853.9No.1BA5.30.928.224.764.220.544.4No.0BA6125.45.44.80.6555°圆锥管螺纹型式和尺寸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圆弧尺寸底孔尺寸英寸mmmmtpimm外螺纹H1rmmd=Dpd2=D2d3R1/161/16＂7.7230.907287.1426.5610.5810.1256.4R1/81/8＂9.7280.907289.1478.5660.5810.1258.4R1/41/4＂13.1571.3371912.30111.4450.8560.18411.2R3/83/8＂16.6621.3371915.80614.950.8560.18414.75R1/21/2＂20.9551.8141419.79318.6311.1620.24918.25R3/43/4＂26.4411.8141425.27924.1171.1620.24923.75R11＂33.2492.3091131.7730.2911.4790.31730R11/411/4＂41.912.3091140.43138.9521.4790.31738.5R11/211/2＂47.8032.3091146.32444.8451.4790.31744.5R22＂59.6142.3091158.13556.6561.4790.31756R21/221/2＂75.1842.3091173.70572.2261.4790.31771R33＂87.8842.3091186.40584.9261.4790.31785.5R44＂113.032.30911111.551110.0721.4790.317110.5R55＂138.432.30911136.951135.4721.4790.317136R66＂163.832.30911162.351160.8721.4790.317161.5制惠氏螺纹的型式尺寸英制普通螺纹(惠氏螺纹)--粗牙(BSW)名义尺牙型代大径螺距每英中径小径牙型高底孔直寸号寸牙数径Wwmmmmtpimm外螺纹H1mmd=Dpd2=D2d31/16＂BSW1.5870.423601.3151.050.271.153/32＂BSW2.3810.529482.0411.7030.3381.91/8＂BSW3.1750.635402.7682.3620.4062.55/32＂BSW3.9690.793323.4592.9520.5073.23/16＂BSW4.7621.058244.0843.4070.6773.77/32＂BSW5.5561.058244.8784.2010.6774.51/4＂BSW6.351.27205.5374.7240.8135.15/16＂BSW7.9381.411187.0346.1310.9046.53/8＂BSW9.5251.588168.5097.4921.0177.97/16＂BSW11.1131.814149.9518.7891.1629.21/2＂BSW12.72.1171211.3459.991.35510.45/8＂BSW15.8762.3091114.39712.9181.47913.43/4＂BSW19.0512.541017.42415.7981.62716.257/8＂BSW22.2262.822920.41918.6111.80719.251＂BSW25.43.175823.36821.3352.0332211/8＂BSW28.5763.629726.25323.9292.32424.511/4＂BSW31.7513.629729.42827.1042.32427.2513/8＂BSW34.9264.233632.21529.5052.71130.2511/2＂BSW38.14.233635.39132.682.71133.515/8＂BSW41.2775.08538.02434.7713.25335.513/4＂BSW44.4525.08541.19937.9463.25338.517/8＂BSW47.6275.64541/244.01240.3983.61441.252＂BSW50.8025.64541/247.18743.5733.61444.521/4＂BSW57.1526.35453.08649.024.0665021/2＂BSW63.5026.35459.43655.374.0665623/4＂BSW69.8537.25731/265.20560.5584.64761.53＂BSW76.2037.25731/271.55666.9094.6476831/4＂BSW82.5537.81631/477.54872.5445.00573.7531/2＂BSW88.9037.81631/483.89978.8945.0058033/4＂BSW95.2548.467389.83284.415.42285.54＂BSW101.6048.467396.18290.765.4229241/4＂BSW107.9548.83527/8102.29796.6395.6579841/2＂BSW114.3048.83527/8108.647102.995.657104.243/4＂BSW120.6659.23723/4114.74108.6255.9151105＂BSW127.0059.23723/4121.09115.1765.915116.551/4＂BSW133.3559.67725/8127.159120.9636.196122.551/2＂BSW139.7059.67725/8133.509127.3136.196128.553/4＂BSW146.05510.1621/2139.549133.0436.506134.56＂BSW152.40610.1621/2145.9139.3946.506141英制普通螺纹--细牙--BSF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底孔直径BSFmmmmtpimm外螺纹H1mmd=Dpd2=D2d33/16BSF4.7630.794324.2553.7470.50847/32BSF5.5560.907284.9754.3940.5814.61/4BSF6.350.977265.7255.10.6255.39/32BSF7.1420.977266.5185.8930.6256.15/16BSF7.9381.156227.1996.4590.7396.83/8BSF9.5251.27208.7127.8990.8138.37/16BSF11.1131.4111810.2099.3040.9049.71/2BSF12.71.5881611.68410.6681.01711.19/16BSF14.2881.5881613.27212.2561.01712.75/8BSF15.8751.8141414.71213.5491.1621411/16BSF17.4631.8141416.315.1371.16215.53/4BSF19.052.1171217.69316.3361.35516.7513/16BSF20.6382.1171219.28117.9241.35518.257/8BSF22.2252.3091120.74719.2691.47919.751.00BSF25.42.541023.77422.1481.62722.7511/8BSF28.5752.822926.76924.9631.80726.511/4BSF31.752.822929.94428.1381.80728.7513/8BSF34.9253.175832.89330.8612.03331.511/2BSF38.13.175836.06834.0362.03334.515/8BSF41.2753.175839.24337.2112.0333813/4BSF44.453.629742.12639.8022.32440.52BSF50.83.629748.47646.1522.3244721/4BSF57.154.234654.4451.732.7115321/2BSF63.54.234660.7958.082.7115923/4BSF69.854.234667.1464.432.711-3BSF76.25.08572.94669.6923.253-31/4BSF82.555.08579.29676.0423.253-31/2BSF88.95.64541/285.28581.673.614-33/4BSF95.255.64541/291.63588.023.614-4BSF101.65.64541/297.98594.373.614-41/4BSF107.956.354103.88699.8224.066-55°圆柱管螺纹的型式和尺寸BritishPipeThread(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底孔尺寸mmmmtpimm外螺纹H1mmd=Dpd2=D2d3G1/81/8＂9.7280.907289.1478.5660.5818.7G1/41/4＂13.1571.3371912.30111.4450.85611.6G3/83/8＂16.6621.3371915.80614.950.85615G1/21/2＂20.9551.8141419.79318.6311.16219G5/85/8＂22.9111.8141421.74920.5871.16220.75G3/43/4＂26.4411.8141425.27924.1171.16224.5G7/87/8＂30.2011.8141429.03927.8771.16228G11＂33.2492.3091131.7730.2911.47930.5G11/811/8＂37.8972.3091136.41834.9391.47935G11/411/4＂41.912.3091140.43138.9521.47939.5G13/813/8＂44.3232.3091142.84441.3651.47941.5G11/211/2＂47.8032.3091146.32444.8451.47945G13/413/4＂53.7462.3091152.26750.7881.47951G22＂59.6142.3091158.13556.6561.47957G21/421/4＂65.712.3091164.23162.7521.47963G21/221/2＂75.1842.3091173.70572.2261.47972.5G23/423/4＂81.5342.3091180.05578.5761.47979G33＂87.8842.3091186.40584.9261.47985.5G31/431/4＂93.982.3091192.50191.0221.47991G31/231/2＂100.332.3091198.35197.3721.47997.75G33/433/4＂106.682.30911105.201103.7221.479104G44＂113.032.30911111.55110.0721.479110.5G41/241/2＂125.732.30911124.251122.7721.479123G55＂138.432.30911136.951135.4721.479136G51/251/2＂151.132.30911149.651148.1721.479148.5G66＂163.832.30911162.351160.8721.479161.5',)