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 BAmmmmtpimm外螺纹H1d=Dpd2=D2d3No. 14BA10.23110.40.860.720.14No. 13BA1.20.25101.61.050.90.15No. 12BA1.30.2890.711.130.960.17No. 11BA1.50.3181.931.3151.130.185No. 10BA1.70.3572.571.491.280.21No. 9BA1.90.3965.121.6651.430.235No. 8BA2.20.4359.071.941.680.26No. 7BA2.50.4852.922.211.920.29No. 6BA2.80.5347.922.482.160.32No. 5BA3.20.5943.052.8452.490.355No. 4BA3.60.6638.483.2052.810.395No. 3BA4.10.7334.793.663.220.44No. 2BA4.70.8131.354.2153.730.485No. 1BA5.30.928.224.764.220.54No. 0 BA 6125.45.44.8 0.6 5555° °圆锥管螺纹型式和尺寸(2006-03-13 14:38:47 ) 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英 寸 mmmmtpimm外螺纹H1d=Dpd2=D2d3R 1/161/16"7.7230.907287.1426.5610.581R 1/81/8"9.7280.907289.1478.5660.581R 1/41/4"13.1571.3371912.30111.4450.856R 3/83/8"16.6621.3371915.80614.950.856R 1/21/2"20.9551.8141419.79318.6311.162R 3/43/4"26.4411.8141425.27924.1171.162R 11"33.2492.3091131.7730.2911.479R 1 1/41 1/4"41.912.3091140.43138.9521.479R 1 1/21 1/2"47.8032.3091146.32444.8451.479R 22"59.6142.3091158.13556.6561.479R 2 1/22 1/2"75.1842.3091173.70572.2261.479R 33"87.8842.3091186.40584.9261.479R 44"113.032.30911111.551110.0721.479R 55"138.432.30911136.951135.4721.479R 6 6"163.832.309 11 162.351160.872 1.479
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 Wwmmmmtpimm外螺纹H1d=Dpd2=D2d31/16"BSW1.5870.423601.3151.050.273/32"BSW2.3810.529482.0411.7030.3381/8"BSW3.1750.635402.7682.3620.4065/32"BSW3.9690.793323.4592.9520.5073/16"BSW4.7621.058244.0843.4070.6777/32"BSW5.55