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1、公制螺紋基本直徑內(nèi)螺紋公差等級(jí)外螺紋公差6H7H6G大徑中徑小徑中徑公差小徑公差中徑公0差小徑公差中徑公差小徑公差M101109.358.91700.15000.23600.19000.3000.0260.1380.0260.206M1211211.3510.91700.16000.23600.20000.3000.0260.1440.0260.206M1411413.35122.91700.16000.23600.20000.3000

2、.0260.1440.0260.206M121.251211.18810.64700.18000.26500.22400.3350.0280.1600.0280.240M141.251413.18812.64700.18000.26500.22400.3350.0280.1600.0280.240M121.51211.02610.37600.19000.30000.23600.3750.0320.1720.0320.268M141.51

3、413.02612.37600.19000.30000.23600.3750.0320.1720.0320.268M161.51615.02614.37600.19000.30000.23600.3750.0320.1720.0320.268M181.51817.02616.37600.19000.30000.23600.3750.0320.1720.0320.268M201.52019.02618.37600.19000.30000.

4、23600.3750.0320.1720.0320.268M221.52221.02620.37600.19000.30000.23600.3750.0320.1720.0320.268M241.51423.02622.37600.20000.30000.25000.3750.0320.1820.0320.268M261.52625.02624.37600.20000.30000.25000.3750.0320.1820.0320.26

5、8M271.52726.02625.37600.20000.30000.25000.3750.0320.1820.0320.268M301.53029.02628.37600.20000.30000.25000.3750.0320.1820.0320.268M331.53332.02631.37600.20000.30000.25000.3750.0320.1820.0320.268M36&1.53635.02634.37600.200

6、00.30000.25000.3750.0320.1820.0320.268M391.53938.02637.37600.20000.30000.25000.3750.0320.1820.0320.268M421.54241.02640.37600.20000.30000.25000.3750.0320.1820.0320.268M2722725.70124.83500.22400.37500.28000.4750.0380.2080.

7、0380.318M3023028.70127.83500.22400.37500.28000.4750.0380.2080.0380.318M3323331.70130.83500.22400.37500.28000.4750.0380.2080.0380.318M3623634.70133.83500.22400.37500.28000.4750.0380.2080.0380.318M3923937.70136.83500.22400

8、.37500.28000.4750.0380.2080.0380.318M4224240.70139.83500.22400.37500.28000.4750.0380.2080.0380.318M4524543.70142.83500.22400.37500.28000.4750.0380.2080.0380.318M5225250.70149.83500.23600.37500.30000.4750.0380.2180.0380.3

9、18M6026058.70157.83500.23600.37500.30000.4750.0380.2180.0380.318M6426462.70161.83500.23600.37500.30000.4750.0380.2180.0380.318M7227270.70169.83500.23600.37500.30000.4750.0380.2180.0380.318美制NPSM螺紋（美國(guó)標(biāo)準(zhǔn)ANSIB1.20.1機(jī)械連接用直管螺

10、紋60度）外螺紋（2A級(jí)）內(nèi)螺紋（2B級(jí)）大徑中徑小徑中徑標(biāo)號(hào)螺紋代號(hào)最大值最小值最大值最小值最小值最大值最小值最大值32G21159.61458.13556.6560.180，00.640，00，0.1800，0.3600，0.3600，0.36040G2.121175.18473.70572.2260.217，00.640，00，0.2170，0.4340，0.4340，0.43448G31187.88486.40584.9260.

11、217，00.640，00，0.2170，0.4340，0.4340，0.43455度英錐管螺紋基面上的直徑基準(zhǔn)長(zhǎng)度有效螺紋長(zhǎng)度標(biāo)號(hào)螺紋代號(hào)大徑中徑小徑基本最大最小基本最大最小圓錐內(nèi)螺紋基面軸向位移的極限偏差端面大徑02R18289.7289.1478.56644.93.16.57.45.61.19.47804R141913.15712.30111.44567.34.79.7118.41.712.78206R381916.66215.8

12、0614.9506.47.75.110.111.48.81.716.26208R121420.95519.79318.6318.2106.413.21511.42.320.44312R341426.44125.27924.1179.511.37.714.516.312.72.325.84716R11133.24931.77030.29110.412.78.116.819.114.52.932.59920R1.141141.91040.4

13、3138.95212.71510.419.121.416.82.941.11624R1.121147.80346.32444.84512.71510.419.121.416.82.947.00932R21159.61458.13556.65615.918.213.623.425.721.12.958.62040R2.121175.18473.70572.22617.5211426.730.223.23.574.09048R31187.8

14、8486.40584.92620.624.117.129.833.326.33.586.597美制螺紋外螺紋內(nèi)螺紋公差等級(jí)2A公差等級(jí)2B大徑中徑小徑中徑標(biāo)號(hào)螺紋代號(hào)最大最小最大最小小徑最大最小最大最小最大大徑最小JIC螺紋0251624UNF7.9107.7277.2217.1276.6506.7827.0367.2497.3717.938033824UNF9.4979.3148.8098.7128.2378.3828.6368.83

15、78.9619.5250471620UNF11.07910.87410.25410.1479.5689.72810.03310.28710.42411.113051220UNF12.66712.46111.84111.73211.15611.32811.60811.87512.01712.70691618UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.28808341

16、6UNF19.01218.77317.98117.85417.1217.32317.67818.01918.18419.05107814UNF22.18421.92321.00620.86920.02520.26920.67621.04621.22422.225121.11612UNF26.94426.65525.5725.42524.42524.68925.14625.61325.80126.988161.51612UNF33.294

17、33.00531.9231.77330.77531.03931.49631.96332.15433.338201.5812UNF41.22940.9439.85539.70538.7138.98939.44639.90140.09441.275241.7812UNF47.57947.2946.20546.05345.0645.33945.79646.25146.44947.625322.1212UNF63.45263.16262.078

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