1、英制普通螺紋 (惠氏螺紋 ) - 小螺紋系列 (BA)名義尺每英寸底孔直寸牙型代大徑螺距牙數中徑小徑牙型高徑BA號mmmmtpimm外螺紋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. 8

2、BA2.20.4359.071.941.680.261.8No. 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英制惠氏螺紋

3、的型式尺寸英制普通螺紋(惠氏螺紋 ) - 粗牙 (BSW)名義尺每英寸底孔直寸大徑螺距牙數中徑小徑牙型高徑Ww牙型代mmmmtpimm外螺紋H1mm號d=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

4、.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 BSW22.2262.82292

5、0.41918.6111.80719.251BSW25.43.175823.36821.3352.0332211/8BSW28.5763.629726.25323.9292.32424.511/4BSW31.7513.629729.42827.1042.32427.2513/8BSW34.9264.233632.21529.5052.71130.2511/2BSW38.14.233635.39132.682.71133.515/8BSW41.2775.08538.02434.7713.25335.513/4BSW44.4525.08541.19937.9463.25338.517/8BSW47

6、.6275.6454 1/244.01240.3983.61441.252BSW50.8025.6454 1/247.18743.5733.61444.521/4BSW57.1526.35453.08649.024.0665021/2BSW63.5026.35459.43655.374.0665623/4BSW69.8537.2573 1/265.20560.5584.64761.53BSW76.2037.2573 1/271.55666.9094.6476831/4BSW82.5537.8163 1/477.54872.5445.00573.7531/2BSW88.9037.8163 1/4

7、83.89978.8945.0058033/4BSW95.2548.467389.83284.415.42285.54BSW101.68.467396.18290.765.4229241/4BSW107.958.8352 7/8102.396.6395.6579841/2BSW114.38.8352 7/8108.65102.995.657104.243/4BSW120.679.2372 3/4114.74108.635.9151105BSW127.019.2372 3/4121.09115.185.915116.551/4BSW133.369.6772 5/8127.16120.966.19

8、6122.551/2BSW139.719.6772 5/8133.51127.316.196128.553/4BSW146.0610.162 1/2139.55133.046.506134.56BSW152.4110.162 1/2145.9139.396.506141英制普通螺紋 - 細牙 - BSF英制普通螺紋(惠氏螺紋 ) - 細牙 (BSW)名義尺每英寸底孔直寸大徑螺距牙數中徑小徑牙型高徑BSF牙型代mmmmtpimm外螺紋H1mm號d=Dpd2=D2d33/16BSF4.7630.794324.2553.7470.50847/32BSF5.5560.907284.9754.3940.

9、5814.61/4BSF6.350.977265.7255.10.6255.39/32BSF7.1420.977266.5185.8930.6256.15/16BSF7.9381.156227.1996.4590.7396.83/8BSF9.5251.27208.7127.8990.8138.37/16BSF11.1131.4111810.2099.3040.9049.71/2BSF12.71.5881611.68410.6681.01711.19/16BSF14.2881.5881613.27212.2561.01712.75/8BSF15.8751.8141414.71213.5491.1

10、621411/16BSF17.4631.8141416.315.1371.16215.53/4BSF19.052.1171217.69316.3361.35516.7513/16BSF20.6382.1171219.28117.9241.35518.257/8BSF22.2252.3091120.74719.2691.47919.751.00BSF25.42.541023.77422.1481.62722.751 1/8BSF28.5752.822926.76924.9631.80726.51 1/4BSF31.752.822929.94428.1381.80728.751 3/8BSF34.

11、9253.175832.89330.8612.03331.51 1/2BSF38.13.175836.06834.0362.03334.51 5/8BSF41.2753.175839.24337.2112.033381 3/4BSF44.453.629742.12639.8022.32440.52BSF50.83.629748.47646.1522.324472 1/4BSF57.154.234654.4451.732.711532 1/2BSF63.54.234660.7958.082.711592 3/4BSF69.854.234667.1464.432.711-3BSF76.25.085

12、72.94669.6923.253-3 1/4BSF82.555.08579.29676.0423.253-3 1/2BSF88.95.6454 1/285.28581.673.614-3 3/4BSF95.255.6454 1/291.63588.023.614-4BSF101.65.6454 1/297.98594.373.614-4 1/4BSF107.956.354103.8999.8224.066-55°圓柱管螺紋的型式和尺寸British Pipe Thread (惠氏管螺紋 ) - 圓柱 (BSPP/BSPF)每英寸牙型高底孔尺大徑螺距牙數中徑小徑度寸螺紋代基本尺mmm

13、mtpimm外螺紋H1mm號寸d=Dpd2=D2d3G 1/81/8 9.7280.907289.1478.5660.5818.7G 1/41/4 13.1571.3371912.30111.4450.85611.6G 3/83/8 16.6621.3371915.80614.950.85615G 1/21/2 20.9551.8141419.79318.6311.16219G 5/85/8 22.9111.8141421.74920.5871.16220.75G 3/43/4 26.4411.8141425.27924.1171.16224.5G 7/87/8 30.2011.8141429

14、.03927.8771.16228G 1133.2492.3091131.7730.2911.47930.5G11/811/837.8972.3091136.41834.9391.47935G11/411/441.912.3091140.43138.9521.47939.5G13/813/844.3232.3091142.84441.3651.47941.5G11/211/247.8032.3091146.32444.8451.47945G13/413/453.7462.3091152.26750.7881.47951G 2259.6142.3091158.13556.6561.47957G2

15、1/421/465.712.3091164.23162.7521.47963G21/221/275.1842.3091173.70572.2261.47972.5G23/423/481.5342.3091180.05578.5761.47979G 3387.8842.3091186.40584.9261.47985.5G31/431/493.982.3091192.50191.0221.47991G31/231/2100.332.3091198.35197.3721.47997.75G33/433/4106.682.30911105.2103.721.479104G 44113.032.309

16、11111.55110.071.479110.5G41/241/2125.732.30911124.25122.771.479123G 55138.432.30911136.95135.471.479136G51/251/2151.132.30911149.65148.171.479148.5G 66163.832.30911162.35160.871.479161.555°圓錐管螺紋型式和尺寸基本尺每英寸牙型高圓弧尺底孔尺寸大徑螺距牙數中徑小徑度寸寸螺紋代英 寸mmmmtpimm外螺紋H1rmm號d=Dpd2=D2d3R 1/161/16 7.7230.907287.1426.56

17、10.5810.1256.4R 1/81/8 9.7280.907289.1478.5660.5810.1258.4R 1/41/4 13.1571.3371912.30111.4450.8560.18411.2R 3/83/8 16.6621.3371915.80614.950.8560.18414.75R 1/21/2 20.9551.8141419.79318.6311.1620.24918.25R 3/43/4 26.4411.8141425.27924.1171.1620.24923.75R 1133.2492.3091131.7730.2911.4790.31730R11/411/

18、441.912.3091140.43138.9521.4790.31738.5R11/211/247.8032.3091146.32444.8451.4790.31744.5R 2259.6142.3091158.13556.6561.4790.31756R21/221/275.1842.3091173.70572.2261.4790.31771R 3387.8842.3091186.40584.9261.4790.31785.5R 44113.032.30911111.55110.071.4790.317110.5R 55138.432.30911136.95135.471.4790.317136R 66163.832.30911162.35160.871.4790.317161.5左旋螺紋的旋對密封管螺、2非密封管英制非密封管標記 :英制非密封管螺紋的完整標記由螺紋特征代號，螺紋尺寸代號，中徑公差等級代號和旋向代號組成. 英制非密封圓對英制非密封圓柱內螺紋，其中徑公差等級代號省略不標；而英制非密封圓柱外螺