Metric Thread Forms and Pitch

Metric Thread Forms and Pitch

Metric Thread Forms and Pitch


Metric Diameter
(mm)
Pitch (mm)
Coarse (standard) Fine
2 0.40
2.5 0.45
3 0.50 0.35
4 0.70 0.50
5 0.80 0.75
6 1.00 0.75
8 1.25 0.50, 1.00
10 1.50 1.00, 1.25
12 1.75 1.00, 1.25, 1.50
14 2.00 1.50
16 2.00 1.50
18 2.50 1.50
20 2.50 1.50, 2.00
22 2.50 1.50
24 3.00 1.50, 2.00
27 3.00 1.50, 2.00
30 3.50 1.50, 2.00
33 3.50 2.00
36 4.00 1.50, 2.00
39 4.00 1.50, 2.00
42 4.50 2.00

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