(单位: mm) M 1 × 0.25 1.1 × 0.25 1.2 × 0.25 1.4 × 0.3 1.6 × 0.35 1.8 × 0.35 2 × 0.4 2.2 × 0.45 2.5 × 0.45 3 × 0.5 3.5 × 0.6 4 × 0.7 4.5 × 0.75 5 × 0.8 6 × 1 7 × 1 8 × 1.25 9 × 1.25 10 × 1.5 11 × 1.5 12 × 1.75 14 × 2 16 × 2 18 × 2.5 20 × 2.5 22 × 2.5 24 × 3 27 × 3 30 × 3.5 33 × 3.5 36 × 4 39 × 4 42 × 4.5 45 × 4.5 48 × 5 崁合度区分:中 2 级 内螺纹小径 最小直径 最大直径 0.729 0.785 0.829 0.885 0.929 0.985 1.075 1.142 1.221 1.321 1.421 1.521 1.567 1.679 1.713 1.838 2.013 2.138 2.459 2.599 2.850 3.010 3.242 3.422 3.688 3.878 4.134 4.334 4.917 5.153 5.917 6.153 6.647 6.912 7.647 7.912 8.376 8.676 9.376 9.676 10.106 10.441 11.835 12.210 13.835 14.210 15.294 15.744 17.294 17.744 19.294 19.744 20.752 21.252 23.752 24.252 26.211 26.771 29.211 29.771 31.670 32.270 34.670 35.270 37.129 37.799 40.129 40.799 42.587 43.297 注(1)M1.4 以下等级:5H、M1.6 以上等级:6H (2)基於 JIS B 0209-1982 标准