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Metric Thread Info

Drilling sizes, taps and dies, for metric threads 0.30mm to 2.00mm.  All values in mm

Thread size

Pitch

For screws
raw rod dia.

For threaded holes
drill dia.

0.30

0.075

0.24

0.24

0.35

0.075

0.28

0.28

0.40

0.100

0.32

0.32

0.45

0.100

0.43

0.37

0.50

0.125

0.48

0.40

0.55

0.125

0.53

0.45

0.60

0.150

0.58

0.48

0.65

0.150

0.63

0.53

0.70

0.175

0.68

0.56

0.75

0.175

0.73

0.61

0.80

0.200

0.78

0.64

0.85

0.200

0.83

0.69

0.90

0.225

0.88

0.72

0.95

0.225

0.93

0.77

1.00

0.250

0.97

0.80

1.05

0.250

1.02

0.85

1.10

0.250

1.07

0.90

1.20

0.250

1.17

1.00

1.30

0.300

1.27

1.06

1.40

0.300

1.37

1.16

1.50

0.350

1.47

1.26

1.60

0.350

1.56

1.32

1.70

0.350

1.66

1.42

1.80

0.350

1.76

1.52

2.00

0.400

1.96

1.68

Source: Catalog, Bergeon & Cie., Le Locle

For more info on metric threads see : http://en.wikipedia.org/wiki/ISO_metric_screw_thread

 

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