螺纹尺寸及公差

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1、M米制粗牙螺纹基本牙型与尺寸和公差带代号（大径）d=D螺距P螺纹中径d2=D2外螺纹小径d1内螺纹小径D1外螺纹全齿高H2配合齿高H1螺纹中径尺寸（6H公差带级别）丝锥螺纹中径(H2公差带级别为例)minmaxminmaxM30.52.6722.3872.4590.3070.2712.6752.7752.6992.714M3.50.63.1102.7642.8500.3680.3253.1103.2223.1373.155M40.73.5453.1413.2420.4290.3793.5453.6633.5743.593M50.84.4804

2、.0194.1340.4910.4334.4804.6054.5105.530M61.05.3504.7734.9370.6130.5415.3505.5005.3855.408M71.06.3505.7735.9370.6130.5416.3506.5006.3856.408M81.257.1886.4666.6470.7670.6777.1887.3487.2267.251M101.59.0268.1608.3760.9200.8129.0269.2069.0689.096M121.7510.8639.85310.1061.0740.94

3、710.86311.06310.91110.943M142.012.70111.54611.8351.2271.08312.70112.91312.75212.786M162.014.70113.54613.8351.2271.08314.70114.91314.75214.786M182.516.37314.93315.2941.5341.35316.37616.60016.43016.466M202.518.37616.93317.2941.5341.35318.37618.60018.43018.466M222.520.37618.93

4、319.2941.5341.35320.37620.60020.43020.466MF米制细牙螺纹基本牙型与尺寸和公差带代号（大径）d=D螺距P螺纹中径d2=D2外螺纹小径d1内螺纹小径D1外螺纹全齿高H2配合齿高H1螺纹中径尺寸（6H公差带级别）丝锥螺纹中径(H2公差带级别为例)minmaxminmaxM30.352.7732.5712.6210.2150.1892.7732.8632.7942.809M3.50.352.2733.0713.1210.2150.1893.2733.3633.2943.309M40.53.6753.3873.

5、4590.3070.2713.6753.7753.6993.714M50.54.6754.3874.4590.3070.2714.6754.7754.6994.714M60.755.5135.0805.1880.4600.4065.5135.6455.5455.566M81.07.3506.7736.9170.6130.5417.3507.5007.3857.408M101.09.3508.7738.9170.6130.5419.3509.5009.3859.408M101.259.1888.4668.6470.7670.6779.1889.

6、3489.2269.251M121.2511.18810.46610.6470.7670.67711.18811.36811.22611.251M121.511.02610.16010.3760.9200.81211.02611.21611.06811.096M141.513.02612.16012.3760.9200.81213.02613.21613.06813.096M161.515.02614.16014.3760.9200.81215.02615.21615.06815.096M181.517.02616.16016.3760.92

7、00.81217.02617.21617.06817.096M182.016.70115.54615.8351.2271.08316.70116.91316.75216.786M201.519.02618.16018.3760.9200.81219.02619.21619.06819.096M202.018.70117.54617.8351.2271.08318.70118.91318.75218.786M221.521.02620.16020.3760.9200.81221.02621.21621.06821.096M222.020.701

8、19.54619.8351.2271.08320.70120.91320.75220.786UNC统一粗牙螺纹基本牙型与尺寸和公差带代号（螺纹直径—25.4m内牙数