都是按螺栓的扭矩值来定义的

注：螺栓锁紧的力量是介于屈服强度值的75%~90%

1、下表是负荷达到螺丝90%的屈服强度

2、摩擦系数为0.14

规格等级

3.64.65.65.86.88.89.810.912.9

推荐最大扭矩值

M1.60.050.070.090.110.140.180.210.260.31

M20.110.140.180.240.280.380.420.530.63

M2.50.220.290.360.480.580.780.871.091.31

M30.380.510.630.841.011.351.521.92.27

M40.710.951.191.591.912.542.863.574.29

M51.712.282.853.84.566.096.858.5610.3

M62.943.924.916.547.8510.511.814.717.7

M87.119.4811.915.81925.328.435.542.7

M1014.319.123.831.838.150.857.271.585.8

M1224.432.640.754.365.186.997.7122147

M1439526586.6104139156195234

M1659.979.999.8133160213240299359

M1882.5110138183220293330413495

M20117156195260312416468585702

M22158211264352422563634792950

M2420227033744953971980910111213

M272983984976637951060119314911789

M3040554067590010801440162020252430

M33550734917122314671956220127513301

M367089441180157318882517283235404248