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1、英制普通螺纹规格表英制普通螺纹（惠氏螺纹）-小螺纹系列（BA）名义尺寸BA牙型代号大径mm d=D螺距mmp每英寸牙数tpi中径mm d2=D2小径外螺纹d3牙型高H1底孔直径mmNo. 14BA1 -0.23110.40.860.720.140.75No. 13BA1.20.25101.61.050.90.150.95No. 12BA1.30.2890.711.130.960.171No. 11BA1.50.3181.931.3151.130.1851.2No. 10BA70.3572.571.491.280.211.35No. 9BA1.90.3965.121.6651.430.2351.
2、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. 0BA6125.45.44.80.65
3、55 °圆锥管螺纹型式和尺寸(2006-03-13 14:38:47)螺纹代号基本尺寸英寸大径mm d=D螺距mmp每英寸牙 数tpi中径mm d2=D2小径外螺纹d3牙型高度H1圆弧尺寸r底孔尺寸mmR 1/161/16 "7.7230.907287.14216.5610.5810.1256.4R 1/81/8 "9.7280.907289.1478.5660.5810.1258.4R 1/41/4 "13.1571.3371912.301:11.4450.8560.18411.2R 3/83/8 "16.662 1.3371915.806
4、:14.950.8560.18414.75R 1/21/2 "20.9551.8141419.79318.6311.1620.24918.25R 3/43/4 ''26.4411.8141425.27924.1171.1620.24923.75R 11"33.2492.3091131.7730.2911.4790.31730R 1 1/41 1/4 "41.912.3091140.43138.9521.4790.31738.5R 1 1/21 1/2 "47.8032.3091146.32444.8451.4790.31744.5R 22
5、"59.6142.3091158.13556.6561.4790.31756R 2 1/22 1/2 "75.1842.3091173.70572.2261.4790.31771R 33"87.8842.3091186.40584.9261.4790.31785.5R 44"113.032.30911111.551110.0721.4790.317110.5R 55 “138.432.30911136.951 1135.4721.4790.317136R 66 "163.832.30911162.351160.8721.4790.317161.
6、5制惠氏螺纹的型式尺寸英制普通螺纹(惠氏螺纹)-粗牙(BSW)名义尺寸Ww牙型代号大径mm d=D螺距mmp每英寸牙 数tpi中径mm d2=D2小径外螺纹d3牙型高H1底孔直径mm1/16 "BSW1.5870.423601.3151.050.271.153/32 "BSW2.38110.529482.0411.7030.3381.91/8 “BSW3.1750.635402.7682.3620.4062.55/32 "BSW3.9690.793323.4592.9520.5073.23/16 “BSW4.7621.058244.0843.4070.6773.7
7、7/32 "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 “BSW19.0512.54
8、1017.42415.7981.62716.257/8 ''BSW22.2262.822920.41918.6111.80719.251"BSW25.43.175823.36821.3352.033221 1/8 "BSW28.5763.629726.25323.9292.32424.51 1/4 "BSW31.7513.629729.42827.1042.32427.251 3/8 "BSW34.9264.233f632.21529.5052.71130.251 1/2 "BSW38.14.233f635.39132.682.
9、71133.51 5/8 "BSW41.2775.08538.02434.7713.25335.51 3/4 "BSW44.4525.08541.199 :37.9463.25338.51 7/8 "BSW47.6275.6454 1/244.01240.3983.61441.252"BSW50.8025.6454 1/247.18743.5733.61444.52 1/4 "BSW57.1526.35453.08649.024.066502 1/2 "BSW63.5026.35459.43655.374.066562 3/4 &qu
10、ot;BSW69.8537.2573 1/265.20560.5584.64761.53"BSW76.2037.2573 1/271.55666.9094.647683 1/4 "BSW82.5537.8163 1/477.54872.5445.00573.753 1/2 "BSW88.9037.8163 1/483.89978.8945.005803 3/4 "BSW95.2548.467389.83284.415.42285.54"BSW101.6048.467396.182 :90.765.422924 1/4 “BSW107.9548.
11、8352 7/8102.29796.6395.657984 1/2 “BSW114.3048.8352 7/8108.647102.995.657104.24 3/4 “1BSW120.6659.2372 3/4114.74 :108.6255.9151105 “BSW127.0059.2372 3/4121.09115.1765.915116.55 1/4 “BSW133.3559.6772 5/8127.159120.9636.196122.55 1/2 “BSW139.7059.6772 5/8133.509127.3136.196128.55 3/4 “BSW146.05510.162
12、 1/2139.549：133.0436.506134.56”BSW152.40610.162 1/2145.9139.3946.506141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BSF牙型代号大径mm d=D螺距mm每英寸牙数tpi中径mm d2=D2小径外螺纹d3牙型高H1底孔直径mm3/16BSF4.763:0.794324.2553.7470.50847/32BSF5.5560.907284.9754.3940.5814.61/4BSF6.350.977265.7255.10.6255.39/32BSF7.1420.977266.5185.8930.
13、6256.15/16BSF7.9381.156227.199 :6.4590.7396.83/8BSF9.5251.27208.7127.8990.8138.37/16BSF11.1131.4111810.2099.3040.9049.71/2BSF12.71.5881611.68410.6681.01711.19/16BSF14.2881.5881613.27212.2561.01712.75/8BSF15.8751.8141414.71213.5491.1621411/16BSF17.4631.8141416.315.1371.16215.53/4BSF19.052.1171217.693
14、16.3361.35516.7513/16BSF20.6382.1171219.28117.9241.35518.257/8BSF22.2252.3091120.74719.2691.47919.751.00BSF25.42.541023.77422.1481.62722.751 1/8BSF28.5752.822926.76924.9631.80726.51 1/4BSF31.752.822929.94428.1381.80728.751 3/8BSF34.9253.175832.89330.8612.03331.51 1/2BSF38.13.175836.06834.0362.03334.
15、51 5/8BSF41.2753.175839.24337.2112.033381 3/4BSF44.453.629742.12639.8022.32440.52BSF50.83.629748.47646.1522.324472 1/4BSF57.154.234c654.4451.732.711532 1/2 BSF63.54.234c660.7958.082.711592 3/4BSF69.854.234c667.1464.432.711-3BSF76.25.08572.94669.6923.253-3 1/4BSF82.555.08579.29676.0423.253 -3 1/2BSF8
16、8.95.6454 1/285.28581.673.614-3 3/4BSF95.255.6454 1/291.63588.023.614-4BSF101.65.6454 1/297.98594.373.614 -4 1/4BSF107.956.354103.88699.8224.066-55 °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mm d=D螺距mmp每英寸牙 数tpi中径mm d2=D2小径外螺纹d3牙型高度H1底孔尺寸mmG 1/81/8 "9.728:0.907289.1478.
17、5660.5818.7G 1/41/4 "13.1571.3371912.30111.4450.85611.6G 3/83/8 "16.6621.3371915.80614.950.85615G 1/21/2 "20.9551.8141419.793:18.6311.16219G 5/85/8 "22.9111.8141421.749 :20.5871.16220.75G 3/43/4 ''26.4411.8141425.27924.1171.16224.5G 7/87/8 ''30.2011.8141429.039 :2
18、7.8771.16228G 11"33.2492.3091131.7730.2911.47930.5G 1 1/81 1/8 "37.8972.3091136.41834.9391.47935G 1 1/41 1/4 "41.912.3091140.43138.9521.47939.5G 1 3/81 3/8 "44.3232.3091142.84441.3651.47941.5G 1 1/21 1/2 "47.8032.3091146.32444.8451.47945G 1 3/41 3/4 "53.7462.3091152.267
19、50.7881.47951G 22 ''59.6142.3091158.13556.6561.47957G 2 1/42 1/4 "65.712.3091164.23162.7521.47963G 2 1/22 1/2 "75.1842.3091173.70572.2261.47972.5G 2 3/42 3/4 "81.5342.3091180.05578.5761.47979G 33"87.8842.3091186.40584.9261.47985.5G 3 1/43 1/4 "93.982.3091192.50191.02
20、21.47991G 3 1/23 1/2 “100.332.3091198.35197.3721.47997.75G 3 3/43 3/4 “106.682.30911105.201103.7221.479104G 44 "113.032.30911111.55110.0721.479110.5G 4 1/24 1/2 “125.732.30911124.251122.7721.479123G 55 “138.432.30911136.951135.4721.479136G 5 1/25 1/2 “151.132.30911149.651 :148.1721.479148.5G 66 "163.832.30911162.351160.8721.479161.5