1.各部位的尺寸 单位:mm 螺纹的公称直径(d)(2)M3 M4 M5 M6M8M10M12 (M14) 螺栓的螺距(P)0.50.70.811.251.51.752b参考1820222428323640dk最大(基准尺寸)*5.578.51013161821最大**5.687.228.7210.2213.2716.2718.2721.33最小5.326.788.289.7812.7315.7317.7320.67da最大3.64.75.76.89.211.213.715.7ds最大(基准尺寸)34568101214最小2.863.824.825.827.789.7811.7313.73e最小2.873.444.5...