内六角螺栓及螺母尺寸表

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1、螺母六角螺母—C级I型六角螺母—A和B级六角薄螺母（GB/T41-2000）(GB/T6170-2000)(GB/T6172.1-2000)标记示例螺纹规格D=M12、性能级别为5级、不经表面处理、C级的六角螺母：螺母GB/T41-2000M12螺纹规格D=M12、性能级别为8级、不经表面处理、A级的I型六角螺母：螺母GB/T6170-2000M12mm螺纹规格DM3M4M5M6M8M10M12M16M20M24M30M36M42eGB/T418.6310.8914.2017.5919.8526.1732.9539.5550.8560.7972.07GB

2、/T61706.017.668.7911.0514.3817.7720.0326.7532.9539.5550.8560.7972.02GB/T6172.16.017.668.7911.0514.3817.7720.0326.7532.9539.5550.8560.7972.02sGB/T41810131618243036465565GB/T61705.57810131618243036465565GB/T6172.15.57810131618243036465565mGB/T415.66.17.99.512.215.918.722.325.431.53

3、4.9GB/T61702.43.24.75.26.88.410.814.81821.525.63134GB/T6172.11.82.22.73.245681012151821注：A级用于D≤16，B级用于D＞161.各部位的尺寸单位：mm螺纹的公称直径(d)(2)M3M4M5M6M8M10M12(M14)螺栓的螺距(P)0.50.70.811.251.51.752b参考1820222428323640dk最大(基准尺寸)*5.578.51013161821最大**5.687.228.7210.2213.2716.2718.2721.33最小5.326.7

4、88.289.7812.7315.7317.7320.67da最大3.64.75.76.89.211.213.715.7ds最大(基准尺寸)34568101214最小2.863.824.825.827.789.7811.7313.73e最小2.873.444.585.726.869.1511.4313.72f最大0.510.600.600.681.021.021.451.45k最大(基准尺寸)34568101214最小2.863.824.825.707.649.6411.5713.57r最小0.10.20.20.250.40.40.60.6s公称(基准尺

5、寸)2.5345681012最小2.523.024.025.026.028.02510.02512.032最大(1)1栏2.5803.0804.0955.1406.1408.17510.17512.2122栏2.5603.0804.0955.0956.0958.11510.11512.142t最小1.322.534567v最大0.30.40.50.60.811.21.4dw最小5.076.538.039.3812.3315.3317.2320.17w最小1.151.41.92.33.344.85.8螺纹的公称直径(d)(2)M16(M18)M20(M22

6、)M24(M27)M30螺栓的螺距(P)22.52.52.5333.5b参考44485256606672dk最大(基准尺寸)*24273033364045最大**24.3327.3330.3333.3936.3940.3945.39最小23.6726.6729.6732.6135.6139.6144.61da最大17.720.222.424.426.430.433.4ds最大(基准尺寸)16182022242730最小15.7317.7319.6721.6723.6726.6729.67e最小16.0016.0019.4419.4421.7321.732

7、5.15f最大1.451.872.042.042.042.892.89k最大(基准尺寸)16182022242730最小15.5717.5719.4821.4823.4826.4829.48r最小0.60.60.80.80.811s公称(基准尺寸)14141717191922最小14.03214.03217.05017.05019.06519.06522.065最大(1)1栏14.21214.21217.23017.23019.27519.27522.2752栏14.14214.142t最小8910111213.515.5v最大1.61.822.22.4

8、2.73dw最小23.1725.8728.8731.8134.8138.6143