螺纹联接的拧紧力矩计算M t＝K×P0×d×10－3 N.mK:拧紧力系数d：螺纹公称直径P0：预紧力P0＝σ0×A s A s也可由下面表查出A s＝π×d s2/4 d s:螺纹部分危险剖面的计算直径d s＝（d2＋d3）/2 d3= d1－H/6 H：螺纹牙的公称工作高度σ0＝（0.5～0.7）σs σs――――螺栓材料的屈服极限N/mm2（与强度等级相关，材质决定）K值查表：(K值计算公式略)K值摩擦表面状况有润滑无润滑精加工表面0.10 0.12一般加工表面0.13~0.15 0.18~0.21表面氧化0.20 0.24镀锌0.18 0.22 干燥的粗加工表面 0.26~0.3 σs查表：螺纹性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9σs 或σ0.2N/mm21802403203004004806407209001080As查表：螺纹公称直径d/mm3 3.545678101214161820222427303336公称应力截面积As/mm2 5.036.788.7814.220.128.936.65884.3115157192245303353459561694817通过计算得到螺栓联接拧紧力矩如下表所示：表面被氧化（无润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.330.460.430.610.580.810.540.760.72 1.010.87 1.22 1.16 1.62 1.30 1.83 1.63 2.28 1.96 2.74 3.50.510.720.680.960.91 1.280.85 1.20 1.14 1.59 1.37 1.91 1.82 2.55 2.05 2.87 2.56 3.59 3.08 4.31 40.76 1.06 1.01 1.42 1.35 1.89 1.26 1.77 1.69 2.36 2.02 2.83 2.70 3.78 3.03 4.25 3.79 5.31 4.55 6.375 1.53 2.15 2.04 2.86 2.73 3.82 2.56 3.58 3.41 4.77 4.09 5.73 5.457.63 6.138.597.6710.749.2012.886 2.60 3.65 3.47 4.86 4.63 6.48 4.34 6.08 5.798.10 6.959.739.2612.9710.4214.5913.0218.2315.6321.887 4.37 6.12 5.838.167.7710.887.2810.209.7113.5911.6516.3115.5421.7517.4824.4721.8530.5926.2236.718 6.328.858.4311.8111.2415.7410.5414.7614.0519.6816.8723.6122.4931.4825.3035.4231.6244.2737.9553.13 1012.5317.5416.7023.3922.2731.1820.8829.2327.8438.9833.4146.7744.5462.3650.1170.1662.6487.7075.17105.24 1221.8530.5929.1340.7938.8554.3836.4250.9848.5667.9858.2781.5877.69108.7787.40122.36109.25152.95131.10183.54 1434.7848.6946.3764.9261.8286.5557.9681.1477.28108.1992.74129.83123.65173.11139.10194.75173.88243.43208.66292.12 1654.2675.9672.35101.2896.46135.0590.43126.60120.58168.81144.69202.57192.92270.09217.04303.85271.30379.81325.56455.78 1874.65104.5199.53139.35132.71185.79124.42174.18165.89232.24199.07278.69265.42371.59298.60418.04373.25522.55447.90627.06 20105.84148.18141.12197.57188.16263.42176.40246.96235.20329.28282.24395.14376.32526.85423.36592.70529.20740.88635.04889.06 22143.99201.58191.98268.77255.97358.36239.98335.97319.97447.96383.96537.55511.95716.73575.94806.32719.931007.90863.911209.48 24183.00256.19243.99341.59325.32455.45304.99426.99406.66569.32487.99683.18650.65910.91731.981024.77914.981280.971097.971537.16 27267.69374.76356.92499.69475.89666.25446.15624.61594.86832.81713.84999.37951.781332.501070.761499.061338.441873.821606.132248.59 30363.53508.94484.70678.59646.27904.78605.88848.23807.841130.98969.411357.171292.541809.561454.112035.761817.642544.702181.173053.64 33494.68692.56659.58923.41879.441231.21824.471154.261099.301539.011319.161846.821758.872462.421978.732770.232473.423462.782968.104155.34 36635.30889.42847.071185.891129.421581.191058.831482.361411.781976.491694.132371.782258.843162.382541.203557.683176.504447.093811.805336.51表面被氧化（有润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.270.380.360.510.480.680.450.630.600.850.72 1.010.97 1.35 1.09 1.52 1.36 1.90 1.63 2.28 3.50.430.600.570.800.76 1.060.71 1.000.95 1.33 1.14 1.59 1.52 2.13 1.71 2.39 2.14 2.99 2.56 3.59 40.630.890.84 1.18 1.12 1.57 1.05 1.48 1.40 1.97 1.69 2.36 2.25 3.15 2.53 3.54 3.16 4.43 3.79 5.315 1.28 1.79 1.70 2.39 2.27 3.18 2.13 2.98 2.84 3.98 3.41 4.77 4.54 6.36 5.117.16 6.398.957.6710.746 2.17 3.04 2.89 4.05 3.86 5.40 3.62 5.07 4.82 6.75 5.798.107.7210.818.6812.1610.8515.2013.0218.237 3.64 5.10 4.86 6.80 6.479.06 6.078.508.0911.339.7113.5912.9518.1314.5720.3918.2125.4921.8530.598 5.277.387.039.849.3713.128.7812.3011.7116.4014.0519.6818.7426.2321.0829.5126.3536.8931.6244.27 1010.4414.6213.9219.4918.5625.9817.4024.3623.2032.4827.8438.9837.1251.9741.7658.4652.2073.0862.6487.70 1218.2125.4924.2833.9932.3745.3230.3542.4940.4656.6548.5667.9864.7490.6472.84101.9791.04127.46109.25152.95 1428.9840.5738.6454.1051.5272.1348.3067.6264.4090.1677.28108.19103.04144.26115.92162.29144.90202.86173.88243.43 1645.2263.3060.2984.4080.38112.5475.36105.50100.48140.67120.58168.81160.77225.08180.86253.21226.08316.51271.30379.81 1862.2187.0982.94116.12110.59154.83103.68145.15138.24193.54165.89232.24221.18309.66248.83348.36311.04435.46373.25522.55 2088.20123.48117.60164.64156.80219.52147.00205.80196.00274.40235.20329.28313.60439.04352.80493.92441.00617.40529.20740.88 22119.99167.98159.98223.98213.31298.64199.98279.97266.64373.30319.97447.96426.62597.27479.95671.93599.94839.92719.931007.90 24152.50213.49203.33284.66271.10379.55254.16355.82338.88474.43406.66569.32542.21759.09609.98853.98762.481067.47914.981280.97 27223.07312.30297.43416.40396.58555.21371.79520.51495.72694.01594.86832.81793.151110.41892.301249.211115.371561.521338.441873.82 30302.94424.12403.92565.49538.56753.98504.90706.86673.20942.48807.841130.981077.121507.971211.761696.461514.702120.581817.642544.70 33412.24577.13549.65769.51732.861026.01687.06961.88916.081282.511099.301539.011465.732052.021648.942308.522061.182885.652473.423462.78 36529.42741.18705.89988.24941.181317.66882.361235.301176.481647.071411.781976.491882.372635.322117.662964.732647.083705.913176.504447.09镀锌（无润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.300.420.400.560.530.740.500.700.660.930.80 1.12 1.06 1.49 1.20 1.67 1.49 2.09 1.79 2.51 3.50.470.660.630.880.84 1.170.78 1.10 1.04 1.46 1.25 1.75 1.67 2.34 1.88 2.63 2.35 3.29 2.82 3.95 40.700.970.93 1.30 1.24 1.73 1.16 1.62 1.55 2.16 1.85 2.60 2.47 3.46 2.78 3.89 3.48 4.87 4.17 5.845 1.41 1.97 1.87 2.62 2.50 3.50 2.34 3.28 3.12 4.37 3.75 5.25 5.007.00 5.627.877.039.848.4311.816 2.39 3.34 3.18 4.46 4.25 5.94 3.98 5.57 5.317.43 6.378.918.4911.899.5513.3711.9416.7214.3320.067 4.01 5.61 5.347.487.129.97 6.689.358.9012.4610.6814.9514.2419.9416.0222.4320.0328.0424.0333.658 5.808.127.7310.8210.3114.439.6613.5312.8818.0415.4621.6420.6128.8623.1932.4728.9940.5834.7848.70 1011.4816.0815.3121.4420.4228.5819.1426.8025.5235.7330.6242.8740.8357.1645.9464.3157.4280.3968.9096.47 1220.0328.0426.7137.3935.6149.8533.3846.7444.5162.3153.4174.7871.2299.7080.12112.17100.15140.21120.18168.25 1431.8844.6342.5059.5156.6779.3453.1374.3870.8499.1885.01119.01113.34158.68127.51178.52159.39223.15191.27267.78 1649.7469.6366.3292.8488.42123.7982.90116.05110.53154.74132.63185.69176.84247.58198.95278.53248.69348.16298.43417.80 1868.4395.8091.24127.73121.65170.31114.05159.67152.06212.89182.48255.47243.30340.62273.72383.20342.14479.00410.57574.80 2097.02135.83129.36181.10172.48241.47161.70226.38215.60301.84258.72362.21344.96482.94388.08543.31485.10679.14582.12814.97 22131.99184.78175.98246.38234.64328.50219.98307.97293.30410.63351.96492.75469.29657.00527.95739.13659.93923.91791.921108.69 24167.75234.84223.66313.13298.21417.50279.58391.41372.77521.88447.32626.25596.43835.00670.98939.38838.731174.221006.471409.06 27245.38343.53327.18458.05436.23610.73408.97572.56545.29763.41654.35916.09872.471221.45981.531374.141226.911717.671472.292061.20 30333.23466.53444.31622.04592.42829.38555.39777.55740.521036.73888.621244.071184.831658.761332.941866.111666.172332.641999.402799.17 33453.46634.84604.61846.46806.151128.61755.771058.071007.691410.761209.231692.921612.302257.221813.842539.372267.303174.222720.763809.06 36582.36815.30776.481087.071035.301449.42970.601358.831294.131811.781552.952174.142070.602898.852329.433261.202911.794076.503494.154891.80镀锌（有润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.240.340.330.460.430.610.410.570.540.760.650.910.87 1.220.98 1.37 1.22 1.71 1.47 2.05 3.50.380.540.510.720.680.960.640.900.85 1.20 1.03 1.44 1.37 1.91 1.54 2.15 1.92 2.69 2.31 3.23 40.570.800.76 1.06 1.01 1.420.95 1.33 1.26 1.77 1.52 2.12 2.02 2.83 2.28 3.19 2.84 3.98 3.41 4.785 1.15 1.61 1.53 2.15 2.04 2.86 1.92 2.68 2.56 3.58 3.07 4.29 4.09 5.73 4.60 6.44 5.758.05 6.909.666 1.95 2.74 2.60 3.65 3.47 4.86 3.26 4.56 4.34 6.08 5.217.29 6.959.737.8110.949.7713.6811.7216.417 3.28 4.59 4.37 6.12 5.838.16 5.467.657.2810.208.7412.2411.6516.3113.1118.3516.3922.9419.6627.538 4.74 6.64 6.328.858.4311.817.9111.0710.5414.7612.6517.7116.8723.6118.9726.5623.7233.2028.4639.84 109.4013.1512.5317.5416.7023.3915.6621.9220.8829.2325.0635.0833.4146.7737.5852.6246.9865.7756.3878.93 1216.3922.9421.8530.5929.1340.7927.3138.2436.4250.9843.7061.1858.2781.5865.5591.7781.94114.7298.33137.66 1426.0836.5134.7848.6946.3764.9243.4760.8657.9681.1469.5597.3792.74129.83104.33146.06130.41182.57156.49219.09 1640.6956.9754.2675.9672.35101.2867.8294.9590.43126.60108.52151.93144.69202.57162.78227.89203.47284.86244.17341.83 1855.9978.3874.65104.5199.53139.3593.31130.64124.42174.18149.30209.02199.07278.69223.95313.53279.94391.91335.92470.29 2079.38111.13105.84148.18141.12197.57132.30185.22176.40246.96211.68296.35282.24395.14317.52444.53396.90555.66476.28666.79 22107.99151.18143.99201.58191.98268.77179.98251.97239.98335.97287.97403.16383.96537.55431.96604.74539.95755.92647.94907.11 24137.25192.14183.00256.19243.99341.59228.74320.24304.99426.99365.99512.39487.99683.18548.99768.58686.23960.72823.481152.87 27200.77281.07267.69374.76356.92499.69334.61468.46446.15624.61535.38749.53713.84999.37803.071124.291003.831405.371204.601686.44 30272.65381.70363.53508.94484.70678.59454.41636.17605.88848.23727.061017.88969.411357.171090.581526.821363.231908.521635.882290.23 33371.01519.42494.68692.56659.58923.41618.35865.70824.471154.26989.371385.111319.161846.821484.052077.671855.062597.092226.073116.50 36476.47667.06635.30889.42847.071185.89794.121111.771058.831482.361270.601778.841694.132371.781905.902668.262382.373335.322858.854002.38干燥的粗加工表面的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.350.570.470.760.63 1.010.590.950.78 1.270.94 1.52 1.26 2.03 1.41 2.28 1.77 2.85 2.12 3.42 3.50.560.900.74 1.200.99 1.590.93 1.49 1.23 1.99 1.48 2.39 1.97 3.19 2.22 3.59 2.78 4.48 3.33 5.38 40.82 1.33 1.10 1.77 1.46 2.36 1.37 2.21 1.83 2.95 2.19 3.54 2.92 4.72 3.29 5.31 4.11 6.64 4.937.975 1.66 2.68 2.22 3.58 2.95 4.77 2.77 4.47 3.69 5.96 4.437.16 5.919.54 6.6510.748.3113.429.9716.106 2.82 4.56 3.76 6.08 5.028.10 4.707.60 6.2710.137.5312.1610.0316.2111.2918.2314.1122.7916.9327.357 4.737.65 6.3110.208.4213.597.8912.7410.5216.9912.6220.3916.8327.1918.9430.5923.6738.2328.4045.888 6.8511.079.1414.7612.1819.6811.4218.4515.2324.6018.2729.5124.3639.3527.4144.2734.2655.3441.1166.41 1013.5721.9218.1029.2324.1338.9822.6236.5430.1648.7236.1958.4648.2677.9554.2987.7067.86109.6281.43131.54 1223.6738.2431.5650.9842.0867.9839.4563.7352.6084.9763.12101.9784.17135.9694.69152.95118.36191.19142.03229.43 1437.6760.8650.2381.1466.98108.1962.79101.4383.72135.24100.46162.29133.95216.38150.70243.43188.37304.29226.04365.15 1658.7894.9578.37126.60104.50168.8197.97158.26130.62211.01156.75253.21209.00337.61235.12379.81293.90474.77352.68569.72 1880.87130.64107.83174.18143.77232.24134.78217.73179.71290.30215.65348.36287.54464.49323.48522.55404.35653.18485.22783.82 20114.66185.22152.88246.96203.84329.28191.10308.70254.80411.60305.76493.92407.68658.56458.64740.88573.30926.10687.961111.32 22155.98251.97207.98335.97277.31447.96259.97419.96346.63559.94415.96671.93554.61895.91623.941007.90779.921259.87935.911511.85 24198.24320.24264.33426.99352.44569.32330.41533.74440.54711.65528.65853.98704.871138.64792.981280.97991.221601.211189.471921.45 27290.00468.46386.66624.61515.55832.81483.33780.76644.441041.01773.321249.211031.101665.621159.981873.821449.982342.281739.982810.73 30393.82636.17525.10848.23700.131130.98656.371060.29875.161413.721050.191696.461400.262261.951575.292544.701969.113180.872362.933817.04 33535.91865.70714.541154.26952.721539.01893.181442.831190.901923.771429.082308.521905.453078.032143.633462.782679.534328.483215.445194.17 36688.241111.77917.651482.361223.541976.491147.071852.961529.422470.611835.312964.732447.083952.972752.964447.093441.205558.874129.446670.64精加工表面（无润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.160.230.220.300.290.410.270.380.360.510.430.610.580.810.650.910.81 1.140.98 1.37 3.50.260.360.340.480.460.640.430.600.570.800.680.960.91 1.28 1.03 1.44 1.28 1.79 1.54 2.15 40.380.530.510.710.670.940.630.890.84 1.18 1.01 1.42 1.35 1.89 1.52 2.12 1.90 2.66 2.28 3.19 50.77 1.07 1.02 1.43 1.36 1.91 1.28 1.79 1.70 2.39 2.04 2.86 2.73 3.82 3.07 4.29 3.83 5.37 4.60 6.446 1.30 1.82 1.74 2.43 2.32 3.24 2.17 3.04 2.89 4.05 3.47 4.86 4.63 6.48 5.217.29 6.519.127.8110.947 2.18 3.06 2.91 4.08 3.88 5.44 3.64 5.10 4.86 6.80 5.838.167.7710.888.7412.2410.9215.2913.1118.358 3.16 4.43 4.22 5.90 5.627.87 5.277.387.039.848.4311.8111.2415.7412.6517.7115.8122.1418.9726.56 10 6.268.778.3511.6911.1415.5910.4414.6213.9219.4916.7023.3922.2731.1825.0635.0831.3243.8537.5852.62 1210.9315.3014.5720.3919.4227.1918.2125.4924.2833.9929.1340.7938.8554.3843.7061.1854.6376.4865.5591.77 1417.3924.3423.1832.4630.9143.2828.9840.5738.6454.1046.3764.9261.8286.5569.5597.3786.94121.72104.33146.06 1627.1337.9836.1750.6448.2367.5245.2263.3060.2984.4072.35101.2896.46135.05108.52151.93135.65189.91162.78227.89 1837.3252.2549.7769.6766.3692.9062.2187.0982.94116.1299.53139.35132.71185.79149.30209.02186.62261.27223.95313.53 2052.9274.0970.5698.7894.08131.7188.20123.48117.60164.64141.12197.57188.16263.42211.68296.35264.60370.44317.52444.53 2271.99100.7995.99134.39127.99179.18119.99167.98159.98223.98191.98268.77255.97358.36287.97403.16359.96503.95431.96604.74 2491.50128.10122.00170.80162.66227.73152.50213.49203.33284.66243.99341.59325.32455.45365.99512.39457.49640.48548.99768.58 27133.84187.38178.46249.84237.95333.12223.07312.30297.43416.40356.92499.69475.89666.25535.38749.53669.22936.91803.071124.29 30181.76254.47242.35339.29323.14452.39302.94424.12403.92565.49484.70678.59646.27904.78727.061017.88908.821272.351090.581526.82 33247.34346.28329.79461.70439.72615.61412.24577.13549.65769.51659.58923.41879.441231.21989.371385.111236.711731.391484.052077.67 36317.65444.71423.53592.95564.71790.59529.42741.18705.89988.24847.071185.891129.421581.191270.601778.841588.252223.551905.902668.26精加工表面（有润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.140.190.180.250.240.340.230.320.300.420.360.510.480.680.540.760.680.950.81 1.14 3.50.210.300.280.400.380.530.360.500.470.660.570.800.76 1.060.85 1.20 1.07 1.49 1.28 1.79 40.320.440.420.590.560.790.530.740.700.980.84 1.18 1.12 1.57 1.26 1.77 1.58 2.21 1.90 2.66 50.640.890.85 1.19 1.14 1.59 1.07 1.49 1.42 1.99 1.70 2.39 2.27 3.18 2.56 3.58 3.20 4.47 3.83 5.376 1.09 1.52 1.45 2.03 1.93 2.70 1.81 2.53 2.41 3.38 2.89 4.05 3.86 5.40 4.34 6.08 5.437.60 6.519.127 1.82 2.55 2.43 3.40 3.24 4.53 3.03 4.25 4.05 5.66 4.86 6.80 6.479.067.2810.209.1012.7410.9215.298 2.64 3.69 3.51 4.92 4.68 6.56 4.39 6.15 5.868.207.039.849.3713.1210.5414.7613.1818.4515.8122.14 10 5.227.31 6.969.749.2812.998.7012.1811.6016.2413.9219.4918.5625.9820.8829.2326.1036.5431.3243.85 129.1012.7512.1416.9916.1922.6615.1721.2420.2328.3224.2833.9932.3745.3236.4250.9845.5263.7354.6376.48 1414.4920.2919.3227.0525.7636.0624.1533.8132.2045.0838.6454.1051.5272.1357.9681.1472.45101.4386.94121.72 1622.6131.6530.1442.2040.1956.2737.6852.7550.2470.3460.2984.4080.38112.5490.43126.60113.04158.26135.65189.91 1831.1043.5541.4758.0655.3077.4151.8472.5869.1296.7782.94116.12110.59154.83124.42174.18155.52217.73186.62261.27 2044.1061.7458.8082.3278.40109.7673.50102.9098.00137.20117.60164.64156.80219.52176.40246.96220.50308.70264.60370.44 2259.9983.9979.99111.99106.66149.3299.99139.99133.32186.65159.98223.98213.31298.64239.98335.97299.97419.96359.96503.95 2476.25106.75101.66142.33135.55189.77127.08177.91169.44237.22203.33284.66271.10379.55304.99426.99381.24533.74457.49640.48 27111.54156.15148.72208.20198.29277.60185.90260.25247.86347.00297.43416.40396.58555.21446.15624.61557.69780.76669.22936.91 30151.47212.06201.96282.74269.28376.99252.45353.43336.60471.24403.92565.49538.56753.98605.88848.23757.351060.29908.821272.35 33206.12288.57274.82384.75366.43513.00343.53480.94458.04641.26549.65769.51732.861026.01824.471154.261030.591442.831236.711731.39 36264.71370.59352.94494.12470.59658.83441.18617.65588.24823.54705.89988.24941.181317.661058.831482.361323.541852.961588.252223.55一般表面（无润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.240.400.330.530.430.710.410.670.540.890.65 1.060.87 1.420.98 1.60 1.22 2.00 1.47 2.40 3.50.380.630.510.840.68 1.120.64 1.050.85 1.40 1.03 1.67 1.37 2.23 1.54 2.51 1.92 3.14 2.31 3.77 40.570.930.76 1.24 1.01 1.650.95 1.55 1.26 2.07 1.52 2.48 2.02 3.30 2.28 3.72 2.84 4.65 3.41 5.585 1.15 1.88 1.53 2.50 2.04 3.34 1.92 3.13 2.56 4.17 3.07 5.01 4.09 6.68 4.607.51 5.759.39 6.9011.276 1.95 3.19 2.60 4.25 3.47 5.67 3.26 5.32 4.347.09 5.218.51 6.9511.357.8112.769.7715.9611.7219.157 3.28 5.35 4.377.14 5.839.52 5.468.927.2811.908.7414.2711.6519.0313.1121.4116.3926.7619.6632.128 4.747.75 6.3210.338.4313.777.9112.9110.5417.2212.6520.6616.8727.5518.9730.9923.7238.7428.4646.48 109.4015.3512.5320.4616.7027.2815.6625.5820.8834.1025.0640.9233.4154.5737.5861.3946.9876.7356.3892.08 1216.3926.7721.8535.6929.1347.5927.3144.6136.4259.4843.7071.3858.2795.1765.55107.0781.94133.8398.33160.60 1426.0842.6034.7856.8046.3775.7343.4771.0057.9694.6769.55113.6092.74151.47104.33170.40130.41213.00156.49255.60 1640.6966.4754.2688.6272.35118.1667.82110.7890.43147.71108.52177.25144.69236.33162.78265.87203.47332.34244.17398.81 1855.9991.4574.65121.9399.53162.5793.31152.41124.42203.21149.30243.86199.07325.14223.95365.78279.94457.23335.92548.67 2079.38129.65105.84172.87141.12230.50132.30216.09176.40288.12211.68345.74282.24460.99317.52518.62396.90648.27476.28777.92 22107.99176.38143.99235.18191.98313.57179.98293.97239.98391.96287.97470.35383.96627.14431.96705.53539.95881.91647.941058.29 24137.25224.17183.00298.89243.99398.52228.74373.62304.99498.15365.99597.78487.99797.05548.99896.68686.231120.85823.481345.01 27200.77327.92267.69437.23356.92582.97334.61546.53446.15728.71535.38874.45713.841165.93803.071311.681003.831639.591204.601967.51 30272.65445.32363.53593.76484.70791.68454.41742.20605.88989.60727.061187.52969.411583.371090.581781.291363.232226.611635.882671.93 33371.01605.99494.68807.98659.581077.31618.351009.98824.471346.64989.371615.971319.162154.621484.052423.951855.063029.932226.073635.92 36476.47778.24635.301037.66847.071383.54794.121297.071058.831729.431270.602075.311694.132767.081905.903112.972382.373891.212858.854669.45一般表面(有润滑) 的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max30.180.290.240.380.310.510.290.480.390.630.470.760.63 1.010.71 1.140.88 1.43 1.06 1.71 3.50.280.450.370.600.490.800.460.750.62 1.000.74 1.200.99 1.59 1.11 1.79 1.39 2.24 1.67 2.6940.410.660.550.890.73 1.180.68 1.110.91 1.48 1.10 1.77 1.46 2.36 1.64 2.66 2.05 3.32 2.47 3.9850.83 1.34 1.11 1.79 1.48 2.39 1.38 2.24 1.85 2.98 2.22 3.58 2.95 4.77 3.32 5.37 4.15 6.71 4.988.056 1.41 2.28 1.88 3.04 2.51 4.05 2.35 3.80 3.14 5.07 3.76 6.08 5.028.10 5.649.127.0611.408.4713.687 2.37 3.82 3.16 5.10 4.21 6.80 3.94 6.37 5.268.50 6.3110.208.4213.599.4715.2911.8319.1214.2022.948 3.43 5.53 4.577.38 6.099.84 5.719.227.6112.309.1414.7612.1819.6813.7022.1417.1327.6720.5533.20 10 6.7910.969.0514.6212.0619.4911.3118.2715.0824.3618.1029.2324.1338.9827.1443.8533.9354.8140.7265.77 1211.8419.1215.7825.4921.0433.9919.7331.8726.3042.4931.5650.9842.0867.9847.3476.4859.1895.6071.01114.72 1418.8430.4325.1240.5733.4954.1031.4050.7241.8667.6250.2381.1466.98108.1975.35121.7294.19152.15113.02182.57 1629.3947.4839.1963.3052.2584.4048.9879.1365.31105.5078.37126.60104.50168.81117.56189.91146.95237.38176.34284.86 1840.4465.3253.9187.0971.88116.1267.39108.8689.86145.15107.83174.18143.77232.24161.74261.27202.18326.59242.61391.91 2057.3392.6176.44123.48101.92164.6495.55154.35127.40205.80152.88246.96203.84329.28229.32370.44286.65463.05343.98555.66 2277.99125.99103.99167.98138.65223.98129.99209.98173.32279.97207.98335.97277.31447.96311.97503.95389.96629.94467.95755.92 2499.12160.12132.16213.49176.22284.66165.20266.87220.27355.82264.33426.99352.44569.32396.49640.48495.61800.60594.73960.72 27145.00234.23193.33312.30257.77416.40241.66390.38322.22520.51386.66624.61515.55832.81579.99936.91724.991171.14869.991405.37 30196.91318.09262.55424.12350.06565.49328.19530.15437.58706.86525.10848.23700.131130.98787.641272.35984.561590.441181.471908.52 33267.95432.85357.27577.13476.36769.51446.59721.41595.45961.88714.541154.26952.721539.011071.811731.391339.772164.241607.722597.09 36344.12555.89458.83741.18611.77988.24573.53926.48764.711235.30917.651482.361223.541976.491376.482223.551720.602779.432064.723335.32。