公制外螺纹(6g)常用规格极限尺寸表(粗牙)中径小径螺胚直径级

公称直径×螺螺纹精度等大径距M3×0.5

M4×0.7

M5×0.8

M6×1

M8×1.25

M10×1.5

M12×1.75

6g

M14×2

M16×2

M18×2.5

M20×2.5

M22×2.5

M24×3

M27×3最大最小最大最小最大

2.9802.8742.6552.5802.439

3.9783.83.5233.4333.220

4.9764.8264.4564.3614.110

5.9745.7945.3245.2124.891

7.9727.7607.1607.0426.619

9.9689.7328.9948.8628.3442.602.63

3.473.50

4.404.43

5.265.29

7.107.14

8.928.96

11.96611.70110.82910.67910.07210.7510.79

13.96213.68212.66312.50311.79712.5712.62

15.96215.68214.66314.50313.79714.5714.62

17.95817.62316.33416.16415.25216.2416.29

19.95819.62318.33418.16417.25218.2418.29

21.95821.62320.33420.16419.25220.2420.29

23.95223.57722.00321.80320.70421.8921.95

26.95226.57725.00324.80323.70424.8924.95

1.螺胚直径指滚丝前的尺寸，数值为依经验公式计算而得，在实践中需验证。

公制外螺纹(6g)常用规格极限尺寸表（粗牙）