英制螺纹标准对照表

1、不得用于商业用途不得用于商业用途Forpersonaluseonlyinstudyandresearch;notforcommercialuse英制螺纹标准对照表英制普通螺纹惠氏螺纹)一小螺纹系列(BA)名义尺寸BA牙型代号大径mmd=D螺距mmp每英寸牙数tpi中径mmd2=D2小径外螺纹d3牙型高H1底孔直径mmNo.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.10B

2、A1.70.3572.571.491.280.211.35No.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.2BA4.70.8131.354.2153.730.4853.9

3、No.1BA5.30.928.224.764.220.544.4No.0BA6125.45.44.80.65螺纹代号大径mmd=D55。圆锥管螺纹型式和尺寸牙型高度H1圆弧尺寸r底孔尺寸mm基本尺寸英寸螺距mmp每英寸牙数tpi中径mmd2=D2小径外螺纹d3R1/161/167.7230.907287.1426.5610.5810.1256.4R1/81/89.7280.907289.147&5660.5810.125&4R1/41/413.1571.3371912.30111.4450.8560.18411.2R3/83/816.6621.3371915.80614.950.8560.18

4、414.75R1/21/220.9551.8141419.79318.6311.1620.24918.25R3/43/426.4411.8141425.27924.1171.1620.24923.75R1133.2492.3091131.7730.2911.4790.31730R11/411/441.912.3091140.43138.9521.4790.31738.5R11/211/247.8032.3091146.32444.8451.4790.31744.5R2259.6142.3091158.13556.6561.4790.31756R21/221/275.1842.3091173.7

5、0572.2261.4790.31771R3387.8842.3091186.40584.9261.4790.31785.5R44113.032.30911111.551110.0721.4790.317110.5R55138.432.30911136.951135.4721.4790.317136R66163.832.30911162.351160.8721.4790.317161.555圆锥管螺纹型式和尺寸底孔尺寸mm螺纹代号基本尺寸英寸大径mmd=D螺距mmp每英寸牙数tpi中径mmd2=D2小径外螺纹d3牙型高度H1圆弧尺寸rR1/161/167.7230.907287.1426.56

6、10.5810.1256.4R1/81/89.7280.907289.1478.5660.5810.1258.4R1/41/413.1571.3371912.30111.4450.8560.18411.2R3/83/816.6621.3371915.80614.950.8560.18414.75R1/21/220.9551.8141419.79318.6311.1620.24918.25R3/43/426.4411.8141425.27924.1171.1620.24923.75R1133.2492.3091131.7730.2911.4790.31730R11/411/441.912.309

7、1140.43138.9521.4790.31738.5R11/211/247.8032.3091146.32444.8451.4790.31744.5R2259.6142.3091158.13556.6561.4790.31756R21/221/275.1842.3091173.70572.2261.4790.31771R3387.8842.3091186.40584.9261.4790.31785.5R44113.032.30911111.551110.0721.4790.317110.5R55138.432.30911136.951135.4721.4790.317136R66163.8

8、32.30911162.351160.8721.4790.317161.5制惠氏螺纹的型式尺寸英制普通螺纹惠氏螺纹）-谧牙（BSW）名义尺寸Ww牙型代号大径mmd=D螺距mmp每英寸牙数tpi中径mmd2=D2小径外螺纹d3牙型高H1底孔直径mm1/16BSW1.5870.423601.3151.050.271.153/32BSW2.3810.529482.0411.7030.3381.91/8BSW3.1750.635402.7682.3620.4062.55/32BSW3.9690.793323.4592.9520.5073.23/16BSW4.7621.058244.0843.4070.

9、6773.77/32BSW5.5561.058244.8784.2010.6774.51/4BSW6.351.27205.5374.7240.8135.15/16BSW7.9381.411187.0346.1310.9046.53/8BSW9.5251.588168.5097.4921.0177.97/16BSW11.1131.814149.9518.7891.1629.21/2BSW12.72.1171211.3459.991.35510.45/8BSW15.8762.3091114.39712.9181.47913.43/4BSW19.0512.541017.42415.7981.6271

10、6.257/8BSW22.2262.822920.41918.6111.80719.251BSW25.43.175823.36821.3352.0332211/8BSW28.5763.629726.25323.9292.32424.511/4BSW31.7513.629729.42827.1042.32427.2513/8BSW34.9264.233632.21529.5052.71130.2511/2BSW38.14.233635.39132.682.71133.515/8BSW41.2775.08538.02434.7713.25335.513/4BSW44.4525.08541.1993

11、7.9463.25338.517/8BSW47.6275.64541/244.01240.3983.61441.252BSW50.8025.64541/247.18743.5733.61444.521/4BSW57.1526.35453.08649.024.0665021/2BSW63.5026.35459.43655.374.0665623/4BSW69.8537.25731/265.20560.5584.64761.53BSW76.2037.25731/271.55666.9094.6476831/4BSW82.5537.81631/477.54872.5445.00573.7531/2B

12、SW88.9037.81631/483.89978.8945.0058033/4BSW95.2548.467389.83284.415.42285.54BSW101.6048.467396.18290.765.4229241/4BSW107.9548.83527/8102.29796.6395.6579841/2BSW114.3048.83527/8108.647102.995.657104.243/4BSW120.6659.23723/4114.74108.6255.9151105BSW127.0059.23723/4121.09115.1765.915116.551/4BSW133.355

13、9.67725/8127.159120.9636.196122.551/2BSW139.7059.67725/8133.509127.3136.196128.553/4BSW146.05510.1621/2139.549133.0436.506134.56BSW152.40610.1621/2145.9139.3946.506141制惠氏螺纹的型式尺寸名义尺寸Ww牙型代号英制普通螺纹（惠氏螺纹）-粗牙（BSW）牙型高H1底孔直径mm大径mmd=D螺距mmp每英寸牙数tpi中径mmd2=D2小径外螺纹d31/16BSW1.5870.423601.3151.050.271.153/32BSW2.3

14、810.529482.0411.7030.3381.91/8BSW3.1750.635402.7682.3620.4062.55/32BSW3.9690.793323.4592.9520.5073.23/16BSW4.7621.058244.0843.4070.6773.77/32BSW5.5561.058244.8784.2010.6774.51/4BSW6.351.27205.5374.7240.8135.15/16BSW7.9381.411187.0346.1310.9046.53/8BSW9.5251.588168.5097.4921.0177.97/16BSW11.1131.8141

15、49.9518.7891.1629.2不得用于商业用途不得用于商业用途1/2BSW12.72.1171211.3459.991.35510.45/8BSW15.8762.3091114.39712.9181.47913.43/4BSW19.0512.541017.42415.7981.62716.257/8BSW22.2262.822920.41918.6111.80719.251BSW25.43.175823.36821.3352.0332211/8BSW28.5763.629726.25323.9292.32424.511/4BSW31.7513.629729.42827.1042.324

16、27.2513/8BSW34.9264.233632.21529.5052.71130.2511/2BSW38.14.233635.39132.682.71133.515/8BSW41.2775.08538.02434.7713.25335.513/4BSW44.4525.08541.19937.9463.25338.517/8BSW47.6275.64541/244.01240.3983.61441.252BSW50.8025.64541/247.18743.5733.61444.521/4BSW57.1526.35453.08649.024.0665021/2BSW63.5026.3545

17、9.43655.374.0665623/4BSW69.8537.25731/265.20560.5584.64761.53BSW76.2037.25731/271.55666.9094.6476831/4BSW82.5537.81631/477.54872.5445.00573.7531/2BSW88.9037.81631/483.89978.8945.0058033/4BSW95.2548.467389.83284.415.42285.54BSW101.6048.467396.18290.765.4229241/4BSW107.9548.83527/8102.29796.6395.65798

18、41/2BSW114.3048.83527/8108.647102.995.657104.243/4BSW120.6659.23723/4114.74108.6255.9151105BSW127.0059.23723/4121.09115.1765.915116.551/4BSW133.3559.67725/8127.159120.9636.196122.551/2BSW139.7059.67725/8133.509127.3136.196128.553/4BSW146.05510.1621/2139.549133.0436.506134.56BSW152.40610.1621/2145.91

19、39.3946.50614155。圆柱管螺纹的型式和尺寸BritishPipeThrea惠氏管螺纹)一圆柱(BSPP/BSPF)螺纹代号基本尺寸大径mmd=D螺距mmp每英寸牙数tpi中径mmd2=D2小径外螺纹d3牙型高度H1底孔尺寸mmG1/81/89.7280.907289.1478.5660.5818.7G1/41/413.1571.3371912.30111.4450.85611.6G3/83/816.6621.3371915.80614.950.85615G1/21/220.9551.8141419.79318.6311.16219G5/85/822.9111.8141421.74

20、920.5871.16220.75G3/43/426.4411.8141425.27924.1171.16224.5G7/87/830.2011.8141429.03927.8771.16228G1133.2492.3091131.7730.2911.47930.5仅供个人参考仅供个人参考不得用于商业用途不得用于商业用途G11/811/837.8972.3091136.41834.9391.47935G11/411/441.912.3091140.43138.9521.47939.5G13/813/844.3232.3091142.84441.3651.47941.5G11/211/247.8032.3091146.32444.8451.47945G13/413/453.7462.3091152.26750.7881.47951G2259.6142.3091158.13556.6561.47957G21/421/465.712.3091164.23162.7521.47963G21/221/275.1842.3091173.70572.2261.47972.5G23/423/481.5342.3091180.05578.5761.47979G3387.8842.3091