标准件拧紧力矩

标准件拧紧力矩一、标准螺栓、螺母螺纹参数拧紧力矩N.m螺纹直径螺纹间距4T级7T级8T级M50.82.5±0.55±1.06±1.0M61.05±1.09±2.010±2.0M81.2512±222±