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METRIC THREAD CONVERSION

WHEN YOU DON'T HAVE A METRIC SCREW PITCH GAGE

THIS GUIDE HELPS TO CONVERT METRIC PITCH TO NUMBER OF THREADS PER INCH.

METRIC PITCHES CONVERSION CHART

Below is a chart of Metric Pitches in comparison to U. S. threads. Just count the number threads per inch and refer to this chart.

THREADS
PER INCH

MM
PITCH

THREADS
PER INCH

MM
PITCH

56.4

0.45

20.3

1.25

50.7

0.50

16.9

1.50

46.2

0.55

14.5

1.75

42.3

0.60

12.7

2.00

36.3

0.70

10.1

2.50

33.8

0.75

08.4

3.00

31.7

0.80

07.2

3.50

30.0

0.85

06.3

4.00

28.8

0.90

05.6

4.50

26.7

0.95

05.1

5.00

25.4

1.00

 

 


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Copyright 2001 METALWORKING BOOKS
Last modified: December 08, 2001