傻大方摘要：【螺纹|螺纹基本尺寸对照表17272|基本|尺寸|对照|17272】2、95519.79318.63100-0.142-0.284-0.284-0.284+0.142+0.5410000G5/8 X 1422.91121.74920.58700-0.142-0.284-0.284-0.284+0.142+0.5410000G3/4 X 1426.44125.27924.11700-0.142-0.284-0.284-0.284+0.180+0.6400000G1 X 1133.24931.77030.29100-0.180-0.360-0....

1、英制管螺纹基本尺寸及公差（牙形角 55o ） BSPP螺纹代号基本直径内螺纹外螺纹大径中径小径中径公差小径公差A级B级中径公差大径公差中径公差大径公差+0.170+0.2820000G1/8 X 289.7289.1478.5660-0.107-0.214-0.214-0.214G1/4X 1913.15712.30111.445+0.125+0.445-0.125-0.250-0.2500-0.250+0.125+0.4450000G3/8 X 1916.66215.80614.95000-0.125-0.250-0.250-0.250+0.142+0.5410000G1/2 X 1420. 。

2、95519.79318.63100-0.142-0.284-0.284-0.284+0.142+0.5410000G5/8 X 1422.91121.74920.58700-0.142-0.284-0.284-0.284+0.142+0.5410000G3/4 X 1426.44125.27924.11700-0.142-0.284-0.284-0.284+0.180+0.6400000G1 X 1133.24931.77030.29100-0.180-0.360-0.360-0.360+0.180+0.6400000G1.1/4 X 1141.91040.43138.95200-0.180- 。

3、0.360-0.360-0.360+0.180+0.6400000G1.1/2 X 1147.80346.32444.85400-0.180-0.360-0.360-0.360+0.180+0.6400000G2X 1159.61458.13556.65600-0.180-0.360-0.360-0.360+0.217+0.6400000G2.1/2” X1175.18473.70572.22600-0.217-0.434-0.434-0.434+0.217+0.6400000G3”X1187.88486.40584.92600-0.217-0.434-0.434-0.434+0.217+0. 。

4、6400000G3.1/2” X11100.33098.85197.37200-0.217-0.434-0.434-0.434英制锥管螺纹基本尺寸及公差（牙形角55o） BSPT螺纹代号基面上的直径基准长度有效螺纹长度圆锥内螺纹基面轴向 位移偏差（土 mm）大径中径小径基本最大最小基本最大最小R1/8 X 289.7289.1478.5664.04.93.16.57.45.61.1R1/4 X 1913.15712.30111.4456.07.34.79.711.08.41.7R3/8 X 1916.66215.80614.9506.47.75.110.111.48.81.7R1/2 X 14 。

5、20.95519.79318.6318.210.06.413.215.011.42.3R3/4 X 1426.44125.27924.1179.511.37.714.516.312.72.3R1 X 1133.24931.77030.29110.412.78.116.819.114.52.9R1.1/4 X 1141.91040.43138.95212.715.010.419.121.416.82.9R1.1/2 X 1147.80346.32444.84512.715.010.419.121.416.82.9R2 X 1159.61458.13556.65615.918.213.623.42 。

6、5.721.12.9R2.1/2” X1175.18473.70572.22617.521.014.026.730.223.23.5R3” X1187.88486.40584.92620.624.117.129.833.326.33.5R3.1/2” X11100.33098.85197.37222.225.718.731.434.927.93.5美制管螺纹基本尺寸及公差（牙形角 60o） UN（F）螺纹代号外螺纹内螺纹公差等级公差等级2A2B大径中径小径小径中径大径最大最小最大最小最小最大最小最大JIC螺纹7/16 X 20UNF11.07910.87410.25410.1479.5689. 。

7、72810.03310.28710.42411.1131/2 X 20UNF12.66712.46111.84111.73211.15611.32811.60811.87512.01712.79/16 X 18UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.2883/4 X 16UNF19.01218.77317.98117.85417.1217.32317.67818.01918.18419.057/8 X 14UNF22.18421.92321.00620.86920.02520.26920.67621.04621.22 。

8、422.2251-1/16 X 12UN26.94426.65525.5725.42524.42524.68925.14625.61325.80126.9881-5/16 X 12UN33.29433.00531.9231.77330.77531.03931.49631.96332.15433.3381-5/8 X 12UN41.22940.9439.88539.70538.7138.98939.44639.90140.09441.2751-7/8 X 12UN47.57947.2946.20546.05345.0645.33945.79646.25146.44947.6252-1/2 X 1 。

9、2UN63.45263.16262.07861.9260.93261.21461.67162.12662.33263.5ORFS螺纹 /9/16 X 18UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.28811/16 X 16UN17.42717.18816.39616.27415.53515.74816.10416.43116.58917.46313/16 X 16UN20.59920.36119.56819.44418.70718.92319.27919.60619.76620.6381 X 14UNF25.35725 。

10、.09524.17824.03623.19523.44423.82524.22124.40725.41-3/16 X 12UN30.11929.8328.74528.59827.627.86428.32128.78828.97930.1631-7/16 X 12UN36.46736.17735.09334.94333.94734.21434.67135.13835.33136.5131-11/16 X 12UN42.81742.52741.44341.2940.29740.56441.02141.48841.68642.8632 X 12UN50.75450.46549.3849.22548. 。

11、23548.51448.97149.42649.62750.8SAE螺纹5/8 X 18UNF15.83915.61814.92314.80314.16114.35114.68114.95815.1115.8751-1/16 X 14UN26.94726.68325.74325.60824.7424.96825.37525.78325.96126.987其它美制螺纹f! /9/16 X 16UN14.25214.01313.22113.10112.3612.57312.92913.25613.41114.2887/8 X 12UN22.18221.89220.80820.66819.66219 。

12、.93920.39620.85121.03422.2252-1/4 X 12UN57.10456.81555.7355.57554.58554.86455.32155.77655.97657.15注：UNC粗牙螺纹系列 ， UNF细牙螺纹系列 ，UNEF超细牙螺纹系列 ， UN不变螺距系列布锥管螺纹基本尺寸及公差（牙形角600）NPT螺纹代号基面上的直径螺纹长度大径中径小径有效长度管端至基面长Z1/8 X 2710.2729.5198.76674.572Z1/4 X 1813.57212.44311.3149.55.080Z3/8 X 1817.05515.92614.79710.56.096Z1/2 。

13、 X 1421.22319.77218.32113.58.028Z3/4 X 1426.56825.11723.666148.611Z1 X 11.533.22831.46129.69417.510.160Z1.1/4 X 11.541.98540.21838.4511810.688Z1.1/2 X 11.548.05446.28744.52018.510.688Z2 X 11.560.09258.32556.5581911.074公制螺纹基本尺寸及公差（牙形角600） M螺纹代号基本直径内螺纹外螺纹大径中径小径公差等级公差等级6H7H6g中径公差小径公差中径公差小径公差中径公差大径公差M10 。

14、X1109.3508.917+0.150+0.236+0.190+0.300-0.026-0.0260000-0.138-0.206M12X11211.35010.917+0.160+0.236+0.200+0.300-0.026-0.0260000-0.144-0.206M14X11413.35012.917+0.160+0.236+0.200+0.300-0.026-0.0260000-0.144-0.206M12X1.251211.18810.647+0.180+0.265+0.224+0.335-0.028-0.0280000-0.160-0.240M14X1.251413.18812 。

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标题：螺纹|螺纹基本尺寸对照表17272