标准螺栓的拧紧力矩 表2-2 标准螺栓拧紧力矩 分类螺栓尺寸直径(mm)螺距(mm)拧紧力矩(无润滑)六方螺栓(N·;m)六方凸缘螺栓(N·;m) 4TM66.01.05.16.1M88.01.2513151.01316M1010.01.525291.252530M1212.01.7542511.254656M1414.01.57488 7TM66.01.08.410M88.01.2521251.02226M1010.01.541481.254351M1212.01.7571841.257792M1414.01.5127147 9TM66.01.01215M88.01.2529351.03137M1010.01.559701.256274M1212.01.75981181.25108137M1414.01.5177206