英制螺纹规格表.doc

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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H1mm 　d=Dp　d2=D2d3　　 No.14BA10.23110.40.860.720.140.75 No.13BA1.20.25101.61.050.90.150.95 No.12BA1.30.2890.711.130.960.171 No.11BA1.50.3181.931.3151.130.1851.2 No.10BA1.70.3572.571.491.280.21

2、1.35 No.9BA1.90.3965.121.6651.430.2351.5 No.8BA2.20.4359.071.941.680.261.8 No.7BA2.50.4852.922.211.920.292 No.6BA2.80.5347.922.482.160.322.3 No.5BA3.20.5943.052.8452.490.3552.6 No.4BA3.60.6638.483.2052.810.3952.95 No.3BA4.10.7334.793.663.220.443.4 No.2BA4.70.8131.35

3、4.2153.730.4853.9 No.1BA5.30.928.224.764.220.544.4 No.0BA6125.45.44.80.65 　           55°圆锥管螺纹型式和尺寸　（2006-03-1314:38:47）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圆弧尺寸底孔尺寸英寸mmmmtpimm外螺纹H1rmm　d=Dp　d2=D2d3　　　R1/161/16＂7.7230.907287.1426.5610.5810.1256.4R1/81/8＂9.7280.907289.1478.5660.5

4、810.1258.4R1/41/4＂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＂41.912.3091140.4

5、3138.9521.4790.31738.5R11/211/2＂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＂138.432.309111

6、36.951135.4721.4790.317136R66＂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　Wwmmmmtpimm外螺纹H1mm　d=Dp　d2=D2d3　　1/16＂BSW1.5870.423601.3151.050.271.15　3/32＂BSW2.3810.529482.0411.7030.3381.9　1/8＂

7、BSW3.1750.635402.7682.3620.4062.5　5/32＂BSW3.9690.793323.4592.9520.5073.2　3/16＂BSW4.7621.058244.0843.4070.6773.7　7/32＂BSW5.5561.058244.8784.2010.6774.5　1/4＂BSW6.351.27205.5374.7240.8135.1　5/16＂BSW7.9381.411187.0346.1310.9046.5　3/8＂BSW9.5251.588168.5097.4921.0177.9　7/

8、16＂BSW11.1131.814149.9518.7891.1629.2　1/2＂BSW12.72.1171211.3459.991.35510.4　5/8＂BSW15.8762.3091114.39712.9181.47913.4　3/4＂BSW19.0512.54101