1、無1.各部位的尺寸各部位的尺寸單位：單位：mm螺紋的公稱直徑螺紋的公稱直徑(d)(2)M3M4M5M6M8M10M12(M14)螺栓的螺距螺栓的螺距(P)0.50.70.811.251.51.752b參考參考1820222428323640dk最大最大(基準尺寸基準尺寸)*5.578.51013161821最大最大*5.687.228.7210.2213.2716.2718.2721.33最小最小5.326.788.289.7812.7315.7317.7320.67da最大最大3.64.75.76.89.211.213.715.7ds最大最大(基準尺寸基準尺寸)34568101214最小最小

2、2.863.824.825.827.789.7811.7313.73e最小最小2.873.444.585.726.869.1511.4313.72f最大最大0.510.600.600.681.021.021.451.45k最大最大(基準尺寸基準尺寸)34568101214最小最小2.863.824.825.707.649.6411.5713.57r最小最小0.10.20.20.250.40.40.60.6無s公稱公稱(基準尺寸基準尺寸)2.5345681012最小最小2.523.024.025.026.028.02510.02512.032最大最大(1)1 欄欄2.5803.0804.0955

3、.1406.1408.17510.17512.2122 欄欄2.5603.0804.0955.0956.0958.11510.11512.142t最小最小1.322.534567v最大最大0.30.40.50.60.811.21.4dw最小最小5.076.538.039.3812.3315.3317.2320.17w最小最小1.151.41.92.33.344.85.8螺紋的公稱直徑螺紋的公稱直徑(d)(2)M16(M18)M20(M22)M24(M27)M30螺栓的螺距螺栓的螺距(P)22.52.52.5333.5b參考參考44485256606672dk最大最大(基準尺寸基準尺寸)*242

4、73033364045最大最大*24.3327.3330.3333.3936.3940.3945.39最小最小23.6726.6729.6732.6135.6139.6144.61da最大最大17.720.222.424.426.430.433.4ds最大最大(基準尺寸基準尺寸)16182022242730最小最小15.7317.7319.6721.6723.6726.6729.67e最小最小16.0016.0019.4419.4421.7321.7325.15f最大最大1.451.872.042.042.042.892.89k最大最大(基準尺寸基準尺寸)16182022242730最小最小1

5、5.5717.5719.4821.4823.4826.4829.48r最小最小0.60.60.80.80.811s公稱公稱(基準尺寸基準尺寸)14141717191922最小最小14.03214.03217.05017.05019.06519.06522.065最大最大(1)1 欄欄14.21214.21217.23017.23019.27519.27522.2752 欄欄14.14214.142t最小最小8910111213.515.5v最大最大1.61.822.22.42.73dw最小最小23.1725.8728.8731.8134.8138.6143.61w最小最小6.87.78.69.

6、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 A2-50、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。無注(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。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

7、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()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()-bs(最小)=g(最大)-5P2.內六角螺栓的內六角螺栓的 L 和和s 及及g單位：單位：mm螺紋的公稱直徑螺紋的公稱直徑(d)M3M4M5M6M8Ls min.及及g max.公稱長度公稱長度minmaxsmingmaxsmingmaxsmingmaxsmingmaxsmingmax54.765.2465.766.2487.718.29109.7110.291211.6512.351615.6516.352019.5820.42252

8、4.5825.424.573029.5830.429.5126.510483534.535.511.5159136114039.540.516.520141811165.75124544.545.51923162110.75175049.550.52428212615.75225554.455.6263120.75276059.460.6313625.75326564.465.630.75377069.470.635.75428079.480.645.75529089.390.710099.3100.7110109.3110.7120119.3120.7無130129.2130.8140139

9、.2140.8150149.2150.8160159.2160.8180179.2180.8200199.05200.95220219.05220.95240239.05240.95260258.95261.05280278.95281.05300298.95301.05螺紋的公稱直徑螺紋的公稱直徑(d)M10M12(M14)M16(M18)Ls min.及及g max.公稱長度公稱長度minmaxsmingmaxsmingmaxsmingmaxsmingmaxsmingmax54.765.2465.766.2487.718.29109.7110.291211.6512.351615.6516

10、.352019.5820.422524.5825.423029.5830.423534.535.54039.540.54544.545.55.5135049.550.510.5185554.455.615.52310.25196059.460.620.52815.252410206564.465.625.53320.2529152511214.5177069.470.630.53825.2534203016269.5228079.480.640.54835.25443040263619.532無9089.390.750.55845.25544050364629.54210099.3100.76

11、0.56855.25645060465639.552110109.3110.766.25746070566649.562120119.3120.775.25847080667659.572130129.2130.88090768669.582140139.2140.890100869679.592150149.2150.89610689.5102160159.2160.810611699.5112180179.2180.8119.5132200199.05200.95220219.05220.95240239.05240.95260258.95261.05280278.95281.053002

12、98.95301.05螺紋的公稱直徑螺紋的公稱直徑(d)M20(M22)M24(M27)M30Ls min.及及g max.公稱長度公稱長度minmaxsmingmaxsmingmaxsmingmaxsmingmaxsmingmax54.765.2465.766.2487.718.29109.7110.291211.6512.351615.6516.352019.5820.422524.5825.423029.5830.423534.535.54039.540.54544.545.55049.550.55554.455.6無6059.460.66564.465.67069.470.68079.

13、480.615.52811.5249089.390.725.53821.534153092410099.3100.735.54831.54425401934110109.3110.745.55841.5543550294420.538120119.3120.755.56851.5644560395430.548130129.2130.865.57861.5745570496440.558140139.2140.875.58871.5846580597450.568150149.2150.885.59881.5947590698460.578160159.2160.895.510891.5104

14、85100799470.588180179.2180.8115.5128111.51241051209911490.5108200199.05200.95135.5148131.5144125140119134110.5128220219.05220.95139154130.5148240239.05240.95159174150.5168260258.95261.05179194170.5188280278.95281.05199214190.5208300298.95301.05219234210.5228參考：內六角螺栓的沉頭孔及螺栓孔的尺寸單位：單位：mm螺紋螺紋的公稱的公稱直徑直徑(d)M3M4M5M6M8M10M12M14M16M18M20M22M24M27M30ds3456810121416182022242730d?3.44.55.56.6911141618202224263033dk5.578.510131618212427