螺丝精度尺寸????? 公制细牙内螺纹???????????????????????????????????? 公制粗牙内螺纹?规格???? 标准径???? 6H精度?????????????????? ?规格 ? ?标准径?????? 6H精度M2.5*0.35 2.15 2.184 2.121?????????????? ?M1.4*0.3 1.10 1.16 1.075M3.0*0.35 2.65 2.684 2.621??????????????? M1.6*0.35 1.25 1.321 1.221M3.5*0.35 3.15 3.221 3.121?????????????? ?M1.8*0.35 1.45 1.521 1.421M4.0*0.50 3.50 3.599 3.459??????????????? M2.0*0.4 1.60 1.679 1.567M4.5*0.50 4.00 4.099 3.959??????????????? M2.2*0.45 1.75 1.838 1.713M5.0*0.50 4.50 4.599 4.459??????????????