螺丝攻下径对照表

60%100%60%100%M1 X0.250.750.840.73

M1 X0.20.80.870.78M1.1 X0.250.850.940.83

M1.1 X0.20.90.970.88M1.2 X0.250.95 1.040.93

M1.2 X0.21 1.070.98M1.4 X0.3 1.1 1.21 1.08

M1.4 X0.2 1.2 1.27 1.18M1.6 X0.35 1.25 1.37 1.22

M1.6 X0.2 1.4 1.47 1.38M1.7 X0.35 1.35 1.47 1.32

M1.8 X0.2 1.6 1.67 1.58M1.8 X0.35 1.45 1.57 1.42

M2 X0.25 1.75 1.84 1.73M2 X0.4 1.6 1.74 1.57

M2.2 X0.25 1.95 2.07 1.93M2.2 X0.45 1.75 1.01 1.71

M2.5 X0.35 2.15 2.27 2.12M2.3 X0.4 1.9 2.04 1.87

M3 X0.35 2.65 2.77 2.62M2.5 X0.45 2.05 2.21 2.01

M3.5 X0.35 3.15 3.27 3.12M2.6 X0.45 2.15 2.31 2.11

M4 X0.5 3.5 3.68 3.46M3 X0.5 2.5 2.68 2.46

M4.5 X0.54 4.18 3.96M3 X0.6 2.4 2.61 2.35

M5 X0.5 4.5 4.68 4.46M3.5 X0.6 2.9 3.11 2.85

M5.5 X0.55 5.18 4.96M4 X0.7 3.3 3.55 3.24

M6 X0.5 5.5 5.68 5.46M4 X0.75 3.25 3.51 3.19

M6 X0.75 5.25 5.51 5.19M4.5 X.75 3.75 4.01 3.69

M7 X0.75 6.25 6.51 6.19M5 X0.8 4.2 4.48 4.13

M8 X0.757.257.517.19M5 X0.9 4.1 4.7 4.03

M8 X1.077.35 6.92M6 X0.105 5.35 4.92

M9 X1.088.357.92M7 X0.106 6.35 5.92

M10 X0.759.259.519.19M8 X1.25 6.87.19 6.65

M10 X1.099.358.92M9 X1.257.88.197.65

M10 X1.258.759.198.65M10 X1.58.59.038.38

M11 X1.01010.359.92M11 X1.59.510.039.38

M12 X0.7511.2511.5111.19M12 X1.7510.210.8610.11

M12 X1.01111.3510.92M14 X2.01212.711.83

M12 X1.2510.7511.1910.65M16 X2.01414.713.83

M12 X1.510.511.0310.38M18 X2.515.516.3815.29

M14 X1.01313.3512.92M20 X2.517.518.3817.29

M14 X1.2512.7513.1912.65M22 X2.519.520.3819.29

M14 X1.512.513.0312.38M24 X3.02122.0520.75

M15 X1.01414.3513.92M27 X3.02425.0523.75

M15 X1.2513.7514.1913.65M30 X3.526.527.7326.21

M15 X1.513.514.0313.38M33 X3.529.530.7329.21

M16 X1.01515.3514.92M36 X4.03233.431.67

M16 X1.2514.7515.1914.65M39 X4.03536.434.67

M16 X1.514.515.0314.38M42 X4.537.539.0837.13

M18 X1.01717.3516.92M45 X4.540.542.0840.13

M18 X1.2516.7517.1916.65M48 X5.04344.7542.59

M18 X1.516.517.0316.38M52 X5.04748.7546.59

M18 X2.01616.715.83M56 X5.550.552.4350.05

M20 X1.01919.3518.92M60 X5.554.556.4354.05

M20 X1.2518.7519.1918.65M64 X65860.157.5M20 X1.518.519.0318.38

下孔径(%)

规格下孔径公制粗牙(M)

公制细牙(MF)规格下孔径下孔径(%)

M20 X2.01818.717.83 M22 X1.02121.3520.92 M22 X1.2520.7521.1920.65 M22 X1.520.521.0320.38 M22 X2.02020.0719.83 M24 X1.02323.3522.92 M24 X1.2522.7523.1922.65 M24 X1.522.523.0322.38 M24 X2.02222.721.83 M25 X1.02424.1923.92 M25 X1.523.524.0323.38 M25 X2.02323.722.83 M26 X1.524.525.0324.38 M27 X1.02626.3525.92

M27 X1.525.526.0325.38 M27 X2.02525.724.83 M28 X1.526.527.0326.38 M28 X2.02626.725.83 M30 X1.02929.3528.92 M30 X1.528.529.0328.38 M30 X2.02828.727.83 M32 X1.530.531.0330.38 M33 X1.531.532.0331.38 M33 X2.03131.730.83 M33 X3.03031.529.75 M35 X1.533.534.0333.38 M36 X1.534.535.0334.38 M36 X2.03434.733.83 M36 X3.03334.0532.75 M38 X1.536.537.0336.38 M39 X1.537.538.0337.38 M39 X2.03737.736.83 M39 X3.03637.0535.75 M40 X1.538.539.0338.38 M40 X2.03838.737.83 M40 X3.03738.0536.75 M42 X1.540.541.0340.38 M42 X2.04040.739.83 M42 X3.03940.538.75 M42 X4.03840.737.66 M45 X1.543.544.0343.38 M45 X2.04343.742.83 M45 X3.04243.0541.75 M45 X4.04142.440.67 M48 X2.04646.745.83 M48 X3.04546.0544.75 M48 X4.04445.443.67 M50 X1.548.549.0348.38 M50 X2.04848.747.83

60% Nr.1 -64 1.5 1.6 Nr.2 -56 1.8 1.89 Nr.3 -48 2.1 2.17

Nr.4 -40 2.3 2.43

Nr.5 -40 2.6 2.76

Nr.6 -32 2.75 2.99

Nr.8 -32 3.5 3.65

Nr.10 -24 3.8 4.14

Nr.12 -24 4.5 4.8

1/4 -20 5.1 5.53

5/16 -18 6.57.02

3/8 -167.98.49

7/16 -149.39.93

1/2 -1310.811.43

9/16 -1212.212.91

5/8 -1113.514.38

3/4 -1016.517.4

7/8 -919.520.39

1 -822.2523.34

1 1/4 -72829.39

1 3/8 -63132.18

1 1/

2 -634.535.35

1 3/4 -53941.15

2 -4.54547.13

美制粗牙(UNC)

规格下孔径

下孔径(

最小Nr.4 -40 3.1 2.98Nr.6 -32 3.8 3.68Nr.8 -32

4.4 4.34Nr.10 -24

5.2 5.051/4 -20

6.7 6.635/16 -188.48.243/8 -16109.877/16 -1411.611.511/2 -1313.213.129/16 -1214.914.755/8 -1116.516.383/4 -1019.819.6规格下孔径

100%

1.42

1.69

1.94

2.16

2.49

2.65

3.31

3.68

4.34

4.98

6.41

7.81

9.15

10.58

12

13.38

16.3

19.17

21.96

27.82

30.34

33.52

38.95

44.69

孔径(%)

最大

3.18

3.88

4.52

5.28

6.87

8.4910.1311.7813.3915.0316.6719.91