MARYLAND METRICS
THREAD DATA CHARTS

METRIC THREAD -- FINE PITCH -- M (1 mm - 28 mm)

60 deg

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MARYLAND METRICS -- THREAD DATA CHART: Metric Thread -- Fine Pitch
Nominal
Size
ISO MF
Thread
Form
Type
Major
Diameter
mm
d=D
Pitch
mm
p
Root
Radius
mm
r
Pitch
Diameter
mm
d2=D2
Minor
Diameter
Male Thd.
d3
Minor
Diameter
Female Thd.
D1
Thread
Height
Male Thd.
h3
Thread
Height
Female Thd.
H1
Tap
Drill
Diameter
mm
1.0x0.2 M 1.00 0.20 0.029 0.870 0.755 0.783 0.123 0.108 0.80
1.1x0.2 M 1.10 0.20 0.029 0.970 0.855 0.883 0.123 0.108 0.90
1.2x0.2 M 1.20 0.20 0.029 1.070 0.955 0.983 0.123 0.108 1.00
1.4z0.2 M 1.40 0.20 0.029 1.270 1.155 1.183 0.123 0.108 1.20
1.6x0.2 M 1.60 0.20 0.029 1.470 1.355 1.383 0.123 0.108 1.40
1.8x0.2 M 1.80 0.20 0.029 1.670 1.555 1.583 0.123 0.108 1.60
2x0.25 M 2.00 0.25 0.036 1.838 1.693 1.729 0.153 0.135 1.75
2.2x0.25 M 2.20 0.25 0.036 2.038 1.893 1.929 0.153 0.135 1.95
2.5x0.35 M 2.50 0.35 0.051 2.273 2.071 2.121 0.215 0.189 2.10
3x0.35 M 3.00 0.35 0.051 2.773 2.571 2.621 0.215 0.189 2.60
3.5x0.35 M 3.50 0.35 0.051 3.273 3.071 3.121 0.215 0.189 3.10
4x0.5 M 4.00 0.50 0.072 3.675 3.387 3.459 0.307 0.271 3.50
4.5x0.5 M 4.50 0.50 0.072 4.175 3.887 3.959 0.307 0.271 4.00
5x0.5 M 5.00 0.50 0.072 4.675 4.387 4.459 0.307 0.271 4.50
5.5x0.5 M 5.50 0.50 0.072 5.175 4.887 4.959 0.307 0.271 5.00
6x0.75 M 6.00 0.75 0.108 5.513 5.080 5.188 0.460 0.406 5.20
7x0.75 M 7.00 0.75 0.108 6.513 6.080 6.188 0.460 0.406 6.20
8x0.75 M 8.00 0.75 0.108 7.513 7.080 7.188 0.460 0.406 7.20
8x1.0 M 8.00 1.00 0.144 7.350 6.773 6.917 0.613 0.541 7.00
9x0.75 M 9.00 0.75 0.108 8.513 8.080 8.188 0.460 0.406 8.20
9x 1 M 9.00 1.00 0.144 8.350 7.773 7.917 0.613 0.541 8.00
10x0.75 M 10.00 0.75 0.108 9.513 9.080 9.188 0.460 0.406 9.20
10x1 M 10.00 1.00 0.144 9.350 8.773 8.917 0.613 0.541 9.00
10x1.25 M 10.00 1.25 0.180 9.188 8.466 8.647 0.767 0.677 8.80
11x0.75 M 11.00 0.75 0.108 10.513 10.080 10.188 0.460 0.406 10.20
11x1 M 11.00 1.00 0.144 10.350 9.773 9.917 0.613 0.541 10.00
12x1 M 12.00 1.00 0.144 11.350 10.773 10.917 0.613 0.541 11.00
12x1.25 M 12.00 1.25 0.180 11.188 10.466 10.647 0.767 0.677 10.80
12x1.5 M 12.00 1.50 0.217 11.026 10.160 10.376 0.920 0.812 10.50
14x1.0 M 14.00 1.00 0.144 13.350 12.773 12.917 0.613 0.541 13.00
14x1.25 M 14.00 1.25 0.180 13.188 12.466 12.647 0.767 0.677 12.80
14x1.5 M 14.00 1.50 0.217 13.026 12.160 12.376 0.920 0.812 12.50
15x1 M 15.00 1.00 0.144 14.350 13.773 13.917 0.613 0.541 14.00
15x1.5 M 15.00 1.50 0.217 14.026 13.160 13.376 0.920 0.812 13.50
16x1 M 16.00 1.00 0.144 15.350 14.773 14.917 0.613 0.541 15.00
16x1.5 M 16.00 1.50 0.217 15.026 14.160 14.376 0.920 0.812 14.50
17x1.0 M 17.00 1.00 0.144 16.350 15.773 15.917 0.613 0.541 16.00
17x1.5 M 17.00 1.50 0.217 16.026 15.160 15.376 0.920 0.812 15.50
18x1.0 M 18.00 1.00 0.144 17.350 16.773 16.917 0.613 0.541 17.00
18x1.5 M 18.00 1.50 0.217 17.026 16.160 16.376 0.920 0.812 16.50
18x2.0 M 18.00 2.00 0.289 16.701 15.546 15.835 1.227 1.083 16.00
20x1.0 M 20.00 1.00 0.144 19.350 18.773 18.917 0.613 0.541 19.00
20x1.5 M 20.00 1.50 0.217 19.026 18.160 18.376 0.920 0.812 18.50
20x2.0 M 20.00 2.00 0.289 18.701 17.546 17.835 1.227 1.083 18.00
22x1.0 M 22.00 1.00 0.144 21.350 20.773 20.917 0.613 0.541 21.00
22x1.5 M 22.00 1.50 0.217 21.026 20.160 20.376 0.920 0.812 20.50
22x2.0 M 22.00 2.00 0.289 20.701 19.546 19.835 1.227 1.083 20.00
24x1.0 M 24.00 1.00 0.144 23.350 22.773 22.917 0.613 0.541 23.00
24x1.5 M 24.00 1.50 0.217 23.026 22.160 22.376 0.920 0.812 22.50
24x2.0 M 24.00 2.00 0.289 22.701 21.546 21.835 1.227 1.083 22.00
25x1.0 M 25.00 1.00 0.144 24.350 23.773 23.917 0.613 0.541 24.00
25x1.5 M 25.00 1.50 0.217 24.026 23.160 23.376 0.920 0.812 23.50
25x2.0 M 25.00 2.00 0.289 23.701 22.546 22.835 1.227 1.083 23.00
27x1.0 M 27.00 1.00 0.144 26.350 25.773 25.917 0.613 0.541 26.00
27x1.5 M 27.00 1.50 0.217 26.026 25.160 25.376 0.920 0.812 25.50
27x2.0 M 27.00 2.00 0.289 25.701 24.546 24.835 1.227 1.083 25.00
28x1.0 M 28.00 1.00 0.144 27.350 26.773 26.917 0.613 0.541 27.00
28x1.5 M 28.00 1.50 0.217 27.026 26.160 26.376 0.920 0.812 26.50
28x2.0 M 28.00 2.00 0.289 26.701 25.546 25.835 1.227 1.083 26.00
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