1、螺紋聯接的擰緊力矩計算M=KXPXdX10-3N.mt0K:擰緊力系數d：螺紋公稱直徑P：預緊力0P=oXA00sA也可由下面表查出sA=nXd2/4ssd:螺紋部分危險剖面的計算直徑sd=(d+d)/2d=dH/6H：螺紋牙的公稱工作高度s2331o=(0.50.7)o0so螺栓材料的屈服極限N/mm2（與強度等級相s關，材質決定）K值查表：（K值計算公式略）摩擦表面狀況K值有潤滑無潤滑精加工表面0.100.12一般加工表面0.130.150.180.21表面氧化0.200.24鍍鋅0.180.22干燥的粗加工表面0.260.3As查表：螺紋公稱直徑d/mm33.54567810121416

2、1820222427303336公稱應力截面積5.06.78.714.20.28.36.84.As/mm23882196583115157192245303353459561694817通過計算得到螺栓聯接擰緊力矩如下表所示：鋼結構連接用螺栓性能等級分3.6、4.6、4.8、5.6、6.8、8.8、9.8、10.9、12.9等10余個等級，其中8.8級及以上螺栓材質為低碳合金鋼或中碳鋼并經熱處理（淬火、回火），通稱為高強度螺栓，其余通稱為普通螺栓。螺栓性能等級標號有兩部分數字組成，分別表示螺栓材料的公稱抗拉強度值和屈強比值。例如，性能等級4.6級的螺栓，其含義是：1、螺栓材質公稱抗拉強度達40

3、0MPa級；2、螺栓材質的屈強比值為0.6；3、螺栓材質的公稱屈服強度達400X0.6=240MPa級性能等級10.9級高強度螺栓，其材料經過熱處理后，能達到1、螺栓材質公稱抗拉強度達1000MPa級；2、螺栓材質的屈強比值為0.9；3、螺栓材質的公稱屈服強度達1000X0.9=900MPa級表面被氧化（無潤滑）的螺紋聯接的擰緊力矩值（單位：N.m）性能等級3.64.64.85.65.86.88.89.810.912.9螺紋直徑d/mmminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmax30.330.460.430.610.5

4、80.810.540.760.721.010.871.221.161.621.301.831.632.281.962.743.50.510.720.680.960.911.280.851.201.141.591.371.911.822.552.052.872.563.593.084.3140.761.061.011.421.351.891.261.771.692.362.022.832.703.783.034.253.795.314.556.3751.532.152.042.862.733.822.563.583.414.774.095.735.457.636.138.597.6710.749

5、.2012.8862.603.653.474.864.636.484.346.085.798.106.959.739.2612.9710.4214.5913.0218.2315.6321.8874.376.125.838.167.7710.887.2810.209.7113.5911.6516.3115.5421.7517.4824.4721.8530.5926.2236.7186.328.858.4311.8111.2415.7410.5414.7614.0519.6816.8723.6122.4931.4825.3035.4231.6244.2737.9553.1312.517.516.7

6、105.21034023.3922.2731.1820.8829.2327.8438.9833.4146.7744.5462.3650.1170.1662.6487.7075.17421.830.529.1108.7122.3109.2152.9131.1183.51259340.7938.8554.3836.4250.9848.5667.9858.2781.5877.69787.406550434.748.646.3108.1129.8123.6173.1139.1194.7173.8243.4208.6292.11489764.9261.8286.5557.9681.1477.28992.

7、7435105836254.275.972.3101.2135.0126.6120.5168.8144.6202.5192.9270.0217.0303.8271.3379.8325.5455.716665896.46590.43081972945016874.6104.99.5139.3132.7185.7124.4174.1165.8232.2199.0278.6265.4371.5298.6418.0373.2522.5447.9627.018551351928947929045506105.148.141.197.5188.1263.4176.4246.9235.2329.2282.2

8、395.1376.3526.8423.3592.7529.2740.8635.0889.02084181276206084425600846143.201.191.268.7255.9358.3239.9335.9319.9447.9383.9537.5511.9716.7575.9806.3719.91007.863.91209.229958987768776655342390148183.256.243.341.5325.3455.4304.9426.9406.6569.3487.9683.1650.6910.9731.91024.914.91280.1097.1537.240019999

9、25996298518778979716267.374.356.499.6475.8666.2446.1624.6594.8832.8713.8999.3951.71332.1070.1499.1338.1873.1606.2248.27697692995516147850760644821359363.508.484.678.5646.2904.7605.8848.2807.81130.969.41357.1292.1809.1454.2035.1817.2544.2181.3053.30539470978834981175456117664701764494.692.659.923.487

10、9.41231.824.41154.1099.1539.1319.1846.1758.2462.1978.2770.2473.3462.2968.4155.336856581421726300116828742732342781034635.889.847.1185.1129.1581.1058.1482.1411.1976.1694.2371.2258.3162.2541.3557.3176.4447.3811.5336.363042078942198336784913788438206850098051表面被氧化（有潤滑）的螺紋聯接的擰緊力矩值（單位：N.m）性能等級3.64.64.85.

11、65.86.88.89.810.912.9螺紋直徑d/mmminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmax30.270.380.360.510.480.680.450.630.600.850.721.010.971.351.091.521.361.901.632.283.50.430.600.570.800.761.060.711.000.951.331.141.591.522.131.712.392.142.992.563.5940.630.890.841.181.121.571.051.481.401.971.692.

12、362.253.152.533.543.164.433.795.3151.281.791.702.392.273.182.132.982.843.983.414.774.546.365.117.166.398.957.6710.7462.173.042.894.053.865.403.625.074.826.755.798.107.7210.818.6812.1610.8515.2013.0218.2373.645.104.866.806.479.066.078.508.0911.339.7113.5912.9518.1314.5720.3918.2125.4921.8530.5985.277

13、.387.039.849.3713.128.7812.3011.7116.4014.0519.6818.7426.2321.0829.5126.3536.8931.6244.2710.414.613.919.418.517.4104229625.98024.3623.2032.4827.8438.9837.1251.9741.7658.4652.2073.0862.6487.7018.225.424.233.932.330.3101.9127.4109.2152.9121989745.32542.4940.4656.6548.5667.9864.7490.6472.84791.0465528.

14、940.538.654.151.548.3108.1103.0144.2115.9162.2144.9202.8173.8243.4148740272.13067.6264.4090.1677.2894629068345.263.360.284.480.3112.575.3105.5100.4140.6120.5168.8160.7225.0180.8253.2226.0316.5271.3379.8162090846087817861810162.287.082.9116.110.154.8103.145.1138.2193.5165.8232.2221.1309.6248.8348.331

15、1.0435.4373.2522.5181941259368544948636465588.2123.117.164.156.219.5147.205.8196.0274.4235.2329.2313.6439.0352.8493.9441.0617.4529.2740.8200486064802000000804020008119.167.159.223.213.298.6199.279.9266.6373.3319.9447.9426.6597.2479.9671.9599.9839.9719.91007.22999898983149874076275342390152.213.203.2

16、84.271.379.5254.355.8338.8474.4406.6569.3542.2759.0609.9853.9762.41067.914.91280.245049336610516283621988847897223.312.297.416.396.555.2371.520.5495.7694.0594.8832.8793.11110.892.31249.1115.1561.1338.1873.2707304340581791216154102137524482302.424.403.565.538.753.9504.706.8673.2942.4807.81130.1077.15

17、07.1211.1696.1514.2120.1817.2544.3094129249568906084981297764670586470412.577.549.769.732.1026.687.961.8916.01282.1099.1539.1465.2052.1648.2308.2061.2885.2473.3462.3324136551860106885130017302945218654278529.741.705.988.941.1317.882.1235.1176.1647.1411.1976.1882.2635.2117.2964.2647.3705.3176.4447.36

18、4218892418663630480778493732667308915009鍍鋅（無潤滑）的螺紋聯接的擰緊力矩值（單位：N.m）性能等級3.64.64.85.65.86.88.89.810.912.9螺紋直徑d/mmminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmax30.300.420.400.560.530.740.500.700.660.930.801.121.061.491.201.671.492.091.792.513.50.470.660.630.880.841.170.781.101.041.461.251.

19、751.672.341.882.632.353.292.823.9540.700.970.931.301.241.731.161.621.552.161.852.602.473.462.783.893.484.874.175.8451.411.971.872.622.503.502.343.283.124.373.755.255.007.005.627.877.039.848.4311.8162.393.343.184.464.255.943.985.575.317.436.378.918.4911.899.5513.3711.9416.7214.3320.0674.015.615.347.4

20、87.129.976.689.358.9012.4610.6814.9514.2419.9416.0222.4320.0328.0424.0333.6585.808.127.7310.8210.3114.439.6613.5312.8818.0415.4621.6420.6128.8623.1932.4728.9940.5834.7848.7011.416.015.319.11088121.4420.4228.58426.8025.5235.7330.6242.8740.8357.1645.9464.3157.4280.3968.9096.4720.028.026.733.3112.1100.

21、1140.2120.1168.21234137.3935.6149.85846.7444.5162.3153.4174.7871.2299.7080.127518531.844.642.553.1119.0113.3158.6127.5178.5159.3223.1191.2267.71483059.5156.6779.34374.3870.8499.1885.0114812957849.769.666.3123.782.9116.0110.5154.7132.6185.6176.8247.5198.9278.5248.6348.1298.4417.81643292.8488.42905343

22、94853963068.495.891.2127.7121.6170.3114.159.6152.0212.8182.4255.4243.3340.6273.7383.2342.1479.0410.5574.81830435105769870220407097.0135.129.181.1172.4241.4161.226.3215.6301.8258.7362.2344.9482.9388.0543.3485.1679.1582.1814.92028336087708042164810427131.184.175.246.3234.6328.5219.307.9293.3410.6351.9

23、492.7469.2657.0527.9739.1659.9923.9791.91108.229978988409870365905331269167.234.223.313.1298.2417.5279.391.4372.7521.8447.3626.2596.4835.0670.9939.3838.71174.1006.1409.24758466310581782530883224706245.343.327.458.0436.2610.7408.572.5545.2763.4654.3916.0872.41221.981.51374.1226.1717.1472.2061.2738531

24、8533976915974531491672920333.466.444.622.0592.4829.3555.777.5740.51036.888.61244.1184.1658.1332.1866.1666.2332.1999.2799.302353314283952732078376941117644017453.634.604.846.4806.11128.755.1058.1007.1410.1209.1692.1612.2257.1813.2539.2267.3174.2720.3809.3346846165617707697623923022843730227606582.815

25、.776.1087.1035.1449.970.1358.1294.1811.1552.2174.2070.2898.2329.3261.2911.4076.3494.4891.363630480730426083137895146085432079501580鍍鋅（有潤滑）的螺紋聯接的擰緊力矩值（單位：N.m）性能等級3.64.64.85.65.86.88.89.810.912.9螺紋直徑d/mmminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmax30.240.340.330.460.430.610.410.570.540.

26、760.650.910.871.220.981.371.221.711.472.053.50.380.540.510.720.680.960.640.900.851.201.031.441.371.911.542.151.922.692.313.2340.570.800.761.061.011.420.951.331.261.771.522.122.022.832.283.192.843.983.414.7851.151.611.532.152.042.861.922.682.563.583.074.294.095.734.606.445.758.056.909.6661.952.742.60

27、3.653.474.863.264.564.346.085.217.296.959.737.8110.949.7713.6811.7216.4173.284.594.376.125.838.165.467.657.2810.208.7412.2411.6516.3113.1118.3516.3922.9419.6627.5384.746.646.328.858.4311.817.9111.0710.5414.7612.6517.7116.8723.6118.9726.5623.7233.2028.4639.8413.117.516.715.6109.40512.534023.39621.922

28、0.8829.2325.0635.0833.4146.7737.5852.6246.9865.7756.3878.9316.322.930.529.127.3114.7137.6129421.859340.79138.2436.4250.9843.7061.1858.2781.5865.5591.7781.94298.33626.036.548.646.343.4129.8104.3146.0130.4182.5156.4219.0148134.789764.92760.8657.9681.1469.5597.3792.74336179940.656.975.972.3101.267.8126

29、.6108.5151.9144.6202.5162.7227.8203.4284.8244.1341.8169754.26658294.9590.430239789767355.978.3104.99.5139.393.3130.6124.4174.1149.3209.0199.0278.6223.9313.5279.9391.9335.9470.2189874.6551351428027953412979.3111.105.8148.141.197.5132.185.2176.4246.9211.6296.3282.2395.1317.5444.5396.9555.6476.2666.720

30、813418127302068544230689107.151.143.9201.191.268.7179.251.9239.9335.9287.9403.1383.9537.5431.9604.7539.9755.9647.9907.1229918958987987877665645241137.192.183.0256.243.341.5228.320.2304.9426.9365.9512.3487.9683.1548.9768.5686.2960.7823.41152.2425140199997449999989832887200.281.267.6374.356.499.6334.4

31、68.4446.1624.6535.3749.5713.8999.3803.01124.1003.1405.1204.1686.27770797692961651834772983376044272.381.363.5508.484.678.5454.636.1605.8848.2727.01017.969.41357.1090.1526.1363.1908.1635.2290.30657039470941783688117588223528823371.519.494.6692.659.923.4618.865.7824.41154.989.31385.1319.1846.1484.2077

32、.1855.2597.2226.3116.3301428565813507267111682056706090750476.667.635.3889.847.1185.794.1111.1058.1482.1270.1778.1694.2371.1905.2668.2382.3335.2858.4002.36470604207891277833660841378902637328538干燥的粗加工表面的螺紋聯接的擰緊力矩值（單位：N.m）性能等級3.64.64.85.65.86.88.89.810.912.9螺紋直徑d/mmminmaxminmaxminmaxminmaxminmaxminma

33、xminmaxminmaxminmaxminmax30.350.570.470.760.631.010.590.950.781.270.941.521.262.031.412.281.772.852.123.423.50.560.900.741.200.991.590.931.491.231.991.482.391.973.192.223.592.784.483.335.3840.821.331.101.771.462.361.372.211.832.952.193.542.924.723.295.314.116.644.937.9751.662.682.223.582.954.772.774

34、.473.695.964.437.165.919.546.6510.748.3113.429.9716.1062.824.563.766.085.028.104.707.606.2710.137.5312.1610.0316.2111.2918.2314.1122.7916.9327.3574.737.656.3110.208.4213.597.8912.7410.5216.9912.6220.3916.8327.1918.9430.5923.6738.2328.4045.8886.8511.079.1414.7612.1819.6811.4218.4515.2324.6018.2729.51

35、24.3639.3527.4144.2734.2655.3441.1166.4113.518.1109.6131.510721.92029.2324.1338.9822.6236.5430.1648.7236.1958.4648.2677.9554.2987.7067.86281.43423.631.5101.9135.9152.9118.3191.1142.0229.412738.24650.9842.0867.9839.4563.7352.6084.9763.12784.17694.695693337.650.2108.1101.4135.2100.4162.2133.9216.3150.

36、7243.4188.3304.2226.0365.114760.86381.1466.98962.79383.724695803794558.778.3126.6104.5168.8158.2130.6211.0156.7253.2209.0337.6235.1379.8293.9474.7352.6569.716894.95700197.97621510121078280.8130.6107.174.1143.7232.2134.7217.7179.7290.3215.6348.3287.5464.4323.4522.5404.3653.1485.2783.81874838748310564

37、9855822114.185.2152.246.9203.8329.2191.1308.7254.8411.6305.7493.9407.6658.5458.6740.8573.3926.1687.91111.2066288648000062864800632155.251.9207.335.9277.3447.9259.9419.9346.6559.9415.9671.9554.6895.9623.91007.779.91259.935.91511.229879871676346311490287185198.320.2264.426.9352.4569.3330.4533.7440.571

38、1.6528.6853.9704.81138.792.91280.991.21601.1189.1921.24244339421445587648972214745290.468.4386.624.6515.5832.8483.3780.7644.41041.773.31249.1031.1665.1159.1873.1449.2342.1739.2810.2700666151364012211062988298289873393.636.1525.848.2700.11130.656.31060.875.11413.1050.1696.1400.2261.1575.2544.1969.318

39、0.2362.3817.3082710339872967219462695297011879304535.865.7714.1154.952.71539.893.11442.1190.1923.1429.2308.1905.3078.2143.3462.2679.4328.3215.5194.339105426201883907708524503637853484417688.1111.917.1482.1223.1976.1147.1852.1529.2470.1835.2964.2447.3952.2752.4447.3441.5558.4129.6670.3624776536544907

40、96426131730897960920874464精加工表面（無潤滑）的螺紋聯接的擰緊力矩值（單位：N.m）性能等級3.64.64.85.65.86.88.89.810.912.9螺紋直徑d/mmminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmax30.160.230.220.300.290.410.270.380.360.510.430.610.580.810.650.910.811.140.981.373.50.260.360.340.480.460.640.430.600.570.800.680.960.911.281

41、.031.441.281.791.542.1540.380.530.510.710.670.940.630.890.841.181.011.421.351.891.522.121.902.662.283.1950.771.071.021.431.361.911.281.791.702.392.042.862.733.823.074.293.835.374.606.4461.301.821.742.432.323.242.173.042.894.053.474.864.636.485.217.296.519.127.8110.9472.183.062.914.083.885.443.645.10

42、4.866.805.838.167.7710.888.7412.2410.9215.2913.1118.3583.164.434.225.905.627.875.277.387.039.848.4311.8111.2415.7412.6517.7115.8122.1418.9726.5611.611.115.510.414.613.919.416.7106.268.778.359494229023.3922.2731.1825.0635.0831.3243.8537.5852.6210.915.314.520.319.427.118.225.424.233.929.11230792919893

43、40.7938.8554.3843.7061.1854.6376.4865.5591.7717.324.323.132.430.943.228.940.538.654.146.3121.7104.3146.0149486188740764.9261.8286.5569.5597.3786.9423627.137.936.150.648.267.545.263.360.284.472.3101.2135.0108.5151.9135.6189.9162.7227.81638743220905896.46523518937.352.249.769.666.392.962.287.082.9116.

44、99.5139.3132.7185.7149.3209.0186.6261.2223.9313.51825776019412351902275352.974.070.598.794.0131.88.2123.117.164.141.197.5188.1263.4211.6296.3264.6370.4317.5444.520296887104860641276285042371.9100.95.9134.127.179.119.167.159.223.191.268.7255.9358.3287.9403.1359.9503.9431.9604.722979939991899989898987

45、7676656491.5128.122.170.162.227.152.213.203.284.243.341.5325.3455.4365.9512.3457.4640.4548.9768.524010008066735049336699925999898133.187.178.249.237.333.223.312.297.416.356.499.6475.8666.2535.3749.5669.2936.9803.01124.2784384684951207304340929958321729181.254.242.339.323.452.302.424.403.565.484.678.

46、5646.2904.7727.01017.908.81272.1090.1526.3076473529143994129249709786882355882247.346.329.461.439.615.412.577.549.769.659.923.4879.41231.989.31385.1236.1731.1484.2077.333428797072612413655158142171171390567317.444.423.592.564.790.529.741.705.988.847.1185.1129.1581.1270.1778.1588.2223.1905.2668.36657

47、1539571594218892407894219608425559026精加工表面（有潤滑）的螺紋聯接的擰緊力矩值（單位：N.m）性能等級3.64.64.85.65.86.88.89.810.912.9螺紋直徑d/mmminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmax30.140.190.180.250.240.340.230.320.300.420.360.510.480.680.540.760.680.950.811.143.50.210.300.280.400.380.530.360.500.470.660.570.

48、800.761.060.851.201.071.491.281.7940.320.440.420.590.560.790.530.740.700.980.841.181.121.571.261.771.582.211.902.6650.640.890.851.191.141.591.071.491.421.991.702.392.273.182.563.583.204.473.835.3761.091.521.452.031.932.701.812.532.413.382.894.053.865.404.346.085.437.606.519.1271.822.552.433.403.244.

49、533.034.254.055.664.866.806.479.067.2810.209.1012.7410.9215.2982.643.693.514.924.686.564.396.155.868.207.039.849.3713.1210.5414.7613.1818.4515.8122.1412.912.111.616.213.919.418.5105.227.316.969.749.2898.7080429625.9820.8829.2326.1036.5431.3243.8512.712.116.916.122.615.121.220.228.324.233.932.3129.10

50、54996743289745.3236.4250.9845.5263.7354.6376.4814.420.219.327.025.736.024.133.832.245.038.654.151.5101.4121.714992566510840272.1357.9681.1472.45386.94222.631.630.142.240.156.237.652.750.270.360.284.480.3112.5126.6113.0158.2135.6189.9161540978544908490.430465131.143.541.458.055.377.451.872.569.196.78

51、2.9116.110.154.8124.4174.1155.5217.7186.6261.218057601482741259328232744.161.758.882.378.4109.73.5102.98.0137.117.164.156.219.5176.4246.9220.5308.7264.6370.4200402076090020606480206000459.983.979.9111.106.149.99.9139.133.186.159.223.213.298.6239.9335.9299.9419.9359.9503.92299999663299932659898314877

52、66576.2106.101.142.135.189.127.177.169.237.203.284.271.379.5304.9426.9381.2533.7457.4640.42457566335577089144223366105994498111.156.148.208.198.277.185.260.247.347.297.416.396.555.2446.1624.6557.6780.7669.2936.927541572202960902586004340581519621151.212.201.282.269.376.252.353.336.471.403.565.538.75

53、3.9605.8848.2757.31060.908.81272.3047069674289945436024924956883529235206.288.274.384.366.513.343.480.458.641.549.769.732.1026.824.41154.1030.1442.1236.1731.33125782754300539404266551860172659837139264.370.352.494.470.658.441.617.588.823.705.988.941.1317.1058.1482.1323.1852.1588.2223.367159941259831

54、865245489241866833654962555一般表面（無潤滑）的螺紋聯接的擰緊力矩值（單位：N.m）性能等級3.64.64.85.65.86.88.89.810.912.9螺紋直徑d/mmminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmaxminmax30.240.400.330.530.430.710.410.670.540.890.651.060.871.420.981.601.222.001.472.403.50.380.630.510.840.681.120.641.050.851.401.031.671.372.231.542.511.923.142.313.7740.570.930.761.241.011.650.951.551.262.071.522.482.023.302.283.722.844.