英制螺纹规格详细

名义尺寸

BA

No. 14

No. 13

No. 12

No. 11

No. 10

No. 9

No. 8

No. 7

No. 6

No. 5

No. 4

No. 3

No. 2

No. 1

No. 0牙型代号BABABABABABABABABABABABABABABA英制普通螺纹 (惠氏螺纹) -- 小螺纹系列 (BA)每英寸牙大径螺距数中径小径mmmmtpimm外螺纹d=Dpd2=D2d310.23110.40.860.721.20.25101.61.050.91.30.2890.711.130.961.50.3181.931.3151.131.70.3572.571.491.281.90.3965.121.6651.432.20.4359.071.941.682.50.4852.922.211.922.80.5347.922.482.163.20.5943.052.8452.493.60.6638.483.2052.814.10.7334.793.663.224.70.8131.354.2153.735.30.928.224.764.226125.45.44.8牙型高H10.140.150.170.1850.210.2350.260.290.320.3550.3950.440.4850.540.6底孔直径mm0.750.9511.21.351.51.822.32.62.953.43.94.45

55°圆锥管螺纹型式和尺寸

（2006-03-13 14:38:47 ）

基本尺寸

英 寸

螺纹代号

R 1/16

R 1/8

R 1/4

R 3/8

R 1/2

R 3/4

R 1

R 1 1/4

R 1 1/2

R 2

R 2 1/2

R 3

R 4

R 5

R 61/16＂1/8＂1/4＂3/8＂1/2＂3/4＂1＂1 1/4＂1 1/2＂2＂2 1/2＂3＂4＂5＂6＂大径mmd=D7.7239.72813.15716.66220.95526.44133.24941.9147.80359.61475.18487.884113.03138.43163.83螺距mmp0.9070.9071.3371.3371.8141.8142.3092.3092.3092.3092.3092.3092.3092.3092.309每英寸牙数tpi282819191414111111111111111111中径mmd2=D27.1429.14712.30115.80619.79325.27931.7740.43146.32458.13573.70586.405111.551136.951162.351小径外螺纹d36.5618.56611.44514.9518.63124.11730.29138.95244.84556.65672.22684.926110.072135.472160.872牙型高度圆弧尺寸底孔尺寸H1rmm0.5810.5810.8560.8561.1621.1621.4791.4791.4791.4791.4791.4791.4791.4791.4790.1250.1250.1840.1840.2490.2490.3170.3170.3170.3170.3170.3170.3170.3170.3176.48.411.214.7518.2523.753038.544.5567185.5110.5136161.5

制惠氏螺纹的型式尺寸

英制普通螺纹 (惠氏螺纹) -- 粗牙 (BSW)