最大 最小 最大 最小 G4-G6 G7-G8 G9 G4-G6 G7-G8 硬 材 软 材 M1.0*0.25 0.75 0.785 0.729 M12*1.0 11.00 11.153 10.917 M1.0*0.25 0.86 0.88 No.2-56UNC 1.94 2.65 2.60 M1.1*0.25 0.85 0.885 0.829 M12*0.5 11.50 11.520 11.400 M1.1*0.25 0.96 0.98 No.3-48 2.23 3.25 3.20 M1.2*0.25 0.95 0.985 0.929 M14*1.5 12.50 12.676 12.376 M1.2*0.25 1.06 1.08 No.4-40 2.50 3.75 3.70 M1.4*0.3 1.10 1.142 1.075 M14*1.0 13.00 13.153 12.917