常用管螺纹底孔及深度对照表.xls

RC螺纹深度检验用具螺纹深度检验用具钻孔直径 1/8“7管接头12堵头 8.2 1/4“10管接头14堵头 11 3/8“11管接头15堵头 14.5 1/2“14管接头18堵头 18 3/4“15管接头20堵头 23 1“18管接头25堵头 29 1+1/4“20管接头30堵头 38 1+1/2“22管接头32堵头 44 225管接头35堵头 55 NPT螺纹深度检验用具螺纹深度检验用具钻孔直径 1/8“7管接头12堵头 8.5 1/4“10管接头14堵头 11 3/8“11管接头15堵头 14.5 1/2“14管接头18堵头 18 3/4“15管接头20堵头 23 1“18管接头25堵头 29 1+1/4“20管接头30堵头 38 1+1/2“22管接头32堵头 44 225管接头35堵头 56 锥管螺纹钻底孔直径及检验方法锥管螺纹钻底孔直径及检验方法 锥管螺纹钻底孔直径及检验方法锥管螺纹钻底孔直径及检验方法 要求：要求：堵头孔要求堵头拧紧后端面低于外平面1mm左右；堵头孔要求堵头拧紧后端面低于外平面1mm左右； 管接头孔要求管接头拧紧后有2-3牙路在外面；管接头孔要求管接头拧紧后有2-3牙路在外面； G4-G6G7-G8G9G4-G6G7-G8G9 M1.0 0.250.860.88NO.2-56UNC1.94 M1.1 0.250.960.98NO.3-482.23 M1.2 0.251.061.08NO.4-402.50 M1.4 0.31.241.25NO.5-402.83 M1.6 0.351.411.43NO.6-323.07 M1.7 0.351.511.53NO.8-323.733.77 M1.8 0.351.611.63NO.10-244.244.3 M2.0 0.41.781.80NO.12-244.904.96 M2.2 0.451.951.981/4-205.72 M2.3 0.42.082.105/16-187.24 M2.5 0.452.252.283/8-168.748.81 M2.6 0.452.352.387/16-1410.2010.30 M3.0 0.52.732.751/2-1311.2711.82 M3.5 0.63.173.20NO.2-64UNF1.97 M4.0 0.73.623.653.69NO.3-562.27 M5.0 0.84.564.604.64NO.4-482.56 M6.0 1.05.455.505.55NO.5-442.86 M7.0 1.06.456.506.55NO.6-403.16 M8.0 1.257.317.387.44NO.8-363.78 M10 1.59.189.259.32NO.10-324.394.43 M10 1.259.319.389.44NO.12-284.995.04 M12 1.7511.0411.1211.211/4-285.855.90 M12 1.2511.3111.3811.445/16-247.367.41 3/8-249.00 7/16-2010.4810.54 螺丝攻牙钻孔径和滚造径对照表螺丝攻牙钻孔径和滚造径对照表 公制迫牙丝攻钻孔径美制迫牙丝攻钻孔径 精度等级精度等级 规格规格 1/2-2012.0712.13 最大最小 NO.12-324.704.8264.6232BA4.0-4.2 1/4 -325.605.6905.4863BA 5/16 -327.107.2647.0874BA3.0-3.2 3/8 -328.708.8658.6615BA2.7-2.8 7/16 -2810.2010.33810.1356BA2.4-2.5 1/2 -2811.8011.93811.709 9/16 -2413.2013.38613.132 5/8 -2414.8014.98614.732 3/4 -2017.8017.95817.678 7/8 -2021.0021.13320.853 1 -2024.0024.30824.028 美制特细螺纹英制电器螺纹 2级牙钻孔径 规格(UNEF)标准径规格钻孔径 使用绞刀时不用绞刀时 PS 1/16 - 286.506.6326.490PT 1/16 - 286.106.206.2446.3841/16 - 276.106.256.35 PS 1/8 - 288.508.6378.495PT 1/8 - 288.108.208.2498.3881/8 - 278.338.438.74 PS 1/4 - 1911.4011.54911.341PT 1/4 - 1910.7011.0010.96211.1741/4 - 1810.7211.1311.13 PS 3/8 - 1915.0015.05414.846PT 3/8 - 1914.2014.5014.44814.6583/8 - 1814.2714.2714.68 PS 1/2 - 1418.5018.77318.489PT 1/2 - 1417.6018.0017.97918.2631/2 - 1417.4817.8618.26 PS 3/4 -1424.0024.25923.975PT 3/4 - 1423.0023.5023.37823.6633/4 - 1422.6323.0123.42 PS 1 - 1130.2030.47130.111PT 1- 1129.0029.5029.45929.8221 - 11-1/228.5828.9829.36 PS 1-1/4 - 1138.8039.13238.772PT 1-1/4 - 1137.5038.0037.97638.3391-1/4-11-1/237.3137.6938.10 PS 1-1/2 - 1144.8045.02544.665PT 1-1/2 - 1143.4044.0043.86944.2321-1/2-11-1/243.6644.0444.45 PS 2 - 1156.5056.83656.476PT 2 - 1154.9055.5055.41255.8442 - 11 - 1/255.5855.9656.36 NPT Z 规格 G 标准径 最大最小 规格 Rc ZG使用纹刀 时 不用纹刀 时 有交牙部之 长度（最 小）中之毋 螺牙内径 标准长度 （最小）中 之毋螺牙内 径 螺丝攻牙钻孔径和滚造径对照表螺丝攻牙钻孔径和滚造径对照表 英制管螺纹英制管螺纹美制管螺纹 钻孔径标准径钻孔径 规格 NPS 硬材软材 W 1/8 - 402.652.60M3 0.52.63-2.60SM1/8-402.735-2.688 W 5/32 - 323.253.20M3.0 0.62.56-2.53SM1/8-442.769-2.722 W 3/16 - 243.753.70M3.5 0.63.06-3.03SM9/64-403.128-3.083 W 1/4 - 205.105.00M4.0 0.73.49-3.45SM11/64-403.855-3.805 W 5/16 - 186.606.50M4.0 0.753.45-3.41SM3/16-324.205-4.155 W 3/8 - 168.007.90M4.5 0.753.96-3.92SM3/16-284.143-4.093 W 7/16 - 149.409.30M5.0 0.84.43-4.38SM7/32-325.003-4.955 W 1/2 - 1210.7010.50M5.0 0.94.36-4.31SM15/64-285.325-5.570 W 9/16 - 1212.3012.00M6.0 1.05.30-5.25SM1/4-405.890-5.735 W 5/8 - 1113.7013.50M7.0 1.06.30-6.25SM1/4-285.721-5.366 W 3/4 - 1016.7016.50M8.0 1.07.28-7.23SM9/32-286.508-6.648 W 7/8 - 919.5019.30M8.0 1.257.12-7.07SM11/32-288.092-8.432 W1 - 822.4022.00SM3/8-288.880-8.015 W 1-1/8 - 725.002