1、精選優質文檔-傾情為你奉上螺 母六角螺母C級 I型六角螺母A和B級 六角薄螺母（GB/T41-2000） (GB/T6170-2000) (GB/T6172.1-2000) 標記示例螺紋規格 D=M12、性能級別為5級、不經表面處理、C級的六角螺母： 螺母 GB/T41-2000 M12螺紋規格 D=M12、性能級別為8級、不經表面處理、A級的I型六角螺母： 螺母 GB/T6170-2000 M12mm螺紋規格DM3M4M5M6M8M10M12M16M20M24M30M36M42e GB/T41 8.6310.8914.2017.5919.8526.1732.9539.5550.8560.79

2、72.07GB/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/T415.66.17.99.512.215.918.722.325.431.534.9GB/T61702.

3、43.24.75.26.88.410.814.81821.525.63134GB/T6172.11.82.22.73.245681012151821注：A級用于D16，B級用于D161.各部位的尺寸 單位：mm 螺紋的公稱直徑(d)(2)M3 M4 M5 M6M8M10M12 (M14) 螺栓的螺距(P)0.50.70.811.251.51.752b參考1820222428323640dk最大(基準尺寸)*5.578.51013161821最大*5.687.228.7210.2213.2716.2718.2721.33最小5.326.788.289.7812.7315.7317.7320.67

4、da最大3.64.75.76.89.211.213.715.7ds最大(基準尺寸)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(基準尺寸)34568101214最小2.863.824.825.707.649.6411.5713.57r最小0.10.20.20.250.40.40.60.6s公稱(基準尺寸)2.5345681012最小2.523.024.025.026.028.02510.02512

5、.032最大(1)1欄2.5803.0804.0955.1406.1408.17510.17512.2122欄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螺紋的公稱直徑(d)(2)M16 (M18) M20 (M22) M24 (M27) M30 螺栓的螺距(P)22.52.52.5333.5b參考44485256606672dk最大(基準尺寸)

6、*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(基準尺寸)16182022242730最小15.7317.7319.6721.6723.6726.6729.67e最小16.0016.0019.4419.4421.7321.7325.15f最大1.451.872.042.042.042.892.89k最大(基準尺寸)16182022242730最小15.5717.5719.4821.4823.

7、4826.4829.48r最小0.60.60.80.80.811s公稱(基準尺寸)14141717191922最小14.03214.03217.05017.05019.06519.06522.065最大(1)1欄14.21214.21217.23017.23019.27519.27522.2752欄14.14214.142t最小8910111213.515.5v最大1.61.822.22.42.73dw最小23.1725.8728.8731.8134.8138.6143.61w最小6.87.78.69.510.412.113.1注(1)：s(最大)的1欄適用于強度8.8及10.9及性狀A2-5

8、0、A2-70的內容，2欄適用于強度12.9的內容。但根據雙方當事人之間協議，強度12.9的內容也可以適用1欄。            螺紋的公稱直徑M20以上的s(最大)適用于所有的強度及性狀內容。注(2)：螺紋的公稱直徑中帶括號的盡量不要使用。 備注：1.頭部的側面帶有直紋或網紋參照JIS B 0951(滾花)。此時，dk(最大)為該表中的帶*的數值。           

9、  此外，需要沒有滾花的貨時，訂貨人必須指定。但該dk(最大)為該表中帶*的數值。          2.對于螺紋的公稱直徑建議使用的公稱長度()為粗線框內的內容。             如果比虛線位置短的為全螺紋，桿部的不完全螺紋長度約為3P。         3.公稱長度(

10、)比虛線位置長的話，g(最大)及s(最小)根據下式決定。             g(最大)=公稱長度()-b            s(最小)=g(最大)-5P 2.內六角螺栓的L和s及g 單位：mm 螺紋的公稱直徑(d)M3M4M5M6M8Ls min.及g max.公稱長度minmaxsmingmaxsmingmaxsmingmaxsmingmaxsm

11、ingmax54.765.2465.766.2487.718.29109.7110.291211.6512.351615.6516.352019.5820.422524.5825.424.573029.5830.429.5126.510483534.535.511.5159136114039.540.516.520141811165.75124544.545.51923162110.75175049.550.52428212615.75225554.455.6263120.75276059.460.6313625.75326564.465.630.75377069.470.635.754280

12、79.480.645.75529089.390.710099.3100.7110109.3110.7120119.3120.7130129.2130.8140139.2140.8150149.2150.8160159.2160.8180179.2180.8200199.05200.95220219.05220.95240239.05240.95260258.95261.05280278.95281.05300298.95301.05螺紋的公稱直徑(d)M10M12(M14)M16(M18)Ls min.及g max.公稱長度minmaxsmingmaxsmingmaxsmingmaxsming

13、maxsmingmax54.765.2465.766.2487.718.29109.7110.291211.6512.351615.6516.352019.5820.422524.5825.423029.5830.423534.535.54039.540.54544.545.55.5135049.550.510.5185554.455.615.52310.25196059.460.620.52815.252410206564.465.625.53320.2529152511214.5177069.470.630.53825.2534203016269.5228079.480.640.54835

14、.25443040263619.5329089.390.750.55845.25544050364629.54210099.3100.760.56855.25645060465639.552110109.3110.766.25746070566649.562120119.3120.775.25847080667659.572130129.2130.88090768669.582140139.2140.890100869679.592150149.2150.89610689.5102160159.2160.810611699.5112180179.2180.8119.5132200199.052

15、00.95220219.05220.95240239.05240.95260258.95261.05280278.95281.05300298.95301.05螺紋的公稱直徑(d)M20(M22)M24(M27)M30Ls min.及g max.公稱長度minmaxsmingmaxsmingmaxsmingmaxsmingmaxsmingmax54.765.2465.766.2487.718.29109.7110.291211.6512.351615.6516.352019.5820.422524.5825.423029.5830.423534.535.54039.540.54544.545.

16、55049.550.55554.455.66059.460.66564.465.67069.470.68079.480.615.52811.5249089.390.725.53821.534153092410099.3100.735.54831.54425401934110109.3110.745.55841.5543550294420.538120119.3120.755.56851.5644560395430.548130129.2130.865.57861.5745570496440.558140139.2140.875.58871.5846580597450.568150149.215

17、0.885.59881.5947590698460.578160159.2160.895.510891.510485100799470.588180179.2180.8115.5128111.51241051209911490.5108200199.05200.95135.5148131.5144125140119134110.5128220219.05220.95139154130.5148240239.05240.95159174150.5168260258.95261.05179194170.5188280278.95281.05199214190.5208300298.95301.05219234210.5228參考：內六角螺栓的沉頭孔及螺栓孔的尺寸單位：mm 螺紋的公稱直徑(d)M3M4M5M6M8M10M12M14M16M18M20M22M24M27M30ds3456810121416182022242730d´3.44.55.56.6911141618202224263033dk5.