Metric Fine Thread Dimensions

Metric Thread Drawing
Thread

Size

Major

Diameter

mm

d=D

Pitch

mm

p

Root

Radius

mm

r

Pitch

Diameter

mm

d2=D2

Minor

Diameter

Male

Thread

d3

Minor

Diameter

Female

Thread

D1

Thread

Height

Male

Thread

h3

Thread

Height

Female

Thread

H1

Tap

Drill

Diameter

mm

M1.0 x 0.2 1 0.2 0.029 0.87 0.755 0.783 0.123 0.108 0.8
M1.1 x 0.2 1.1 0.2 0.029 0.97 0.855 0.883 0.123 0.108 0.9
M1.2 x 0.2 1.2 0.2 0.029 1.07 0.955 0.983 0.123 0.108 1
M1.4 x 0.2 1.4 0.2 0.029 1.27 1.155 1.183 0.123 0.108 1.2
M1.6 x 0.2 1.6 0.2 0.029 1.47 1.355 1.383 0.123 0.108 1.4
M1.8 x 0.2 1.8 0.2 0.029 1.67 1.555 1.583 0.123 0.108 1.6
M2 x 0.25 2 0.25 0.036 1.838 1.693 1.729 0.153 0.135 1.75
M2.2 x 0.25 2.2 0.25 0.036 2.038 1.893 1.929 0.153 0.135 1.95
M2.5 x 0.35 2.5 0.35 0.051 2.273 2.071 2.121 0.215 0.189 2.1
M3 x 0.35 3 0.35 0.051 2.773 2.571 2.621 0.215 0.189 2.6
M3.5 x 0.35 3.5 0.35 0.051 3.273 3.071 3.121 0.215 0.189 3.1
M4 x 0.5 4 0.5 0.072 3.675 3.387 3.459 0.307 0.271 3.5
M4.5 x 0.5 4.5 0.5 0.072 4.175 3.887 3.959 0.307 0.271 4
M5 x 0.5 5 0.5 0.072 4.675 4.387 4.459 0.307 0.271 4.5
M5.5 x 0.5 5.5 0.5 0.072 5.175 4.887 4.959 0.307 0.271 5
M6 x 0.75 6 0.75 0.108 5.513 5.08 5.188 0.46 0.406 5.2
M7 x 0.75 7 0.75 0.108 6.513 6.08 6.188 0.46 0.406 6.2
M8 x 0.75 8 0.75 0.108 7.513 7.08 7.188 0.46 0.406 7.2
M8 x 1.0 8 1 0.144 7.35 6.773 6.917 0.613 0.541 7
M9 x 0.75 9 0.75 0.108 8.513 8.08 8.188 0.46 0.406 8.2
M9 x 1 9 1 0.144 8.35 7.773 7.917 0.613 0.541 8
M10 x 0.75 10 0.75 0.108 9.513 9.08 9.188 0.46 0.406 9.2
M10 x 1 10 1 0.144 9.35 8.773 8.917 0.613 0.541 9
M10 x 1.25 10 1.25 0.18 9.188 8.466 8.647 0.767 0.677 8.8
M11 x 0.75 11 0.75 0.108 10.513 10.08 10.188 0.46 0.406 10.2
M11 x 1 11 1 0.144 10.35 9.773 9.917 0.613 0.541 10
M12 x 1 12 1 0.144 11.35 10.773 10.917 0.613 0.541 11
M12 x 1.25 12 1.25 0.18 11.188 10.466 10.647 0.767 0.677 10.8
M12 x 1.5 12 1.5 0.217 11.026 10.16 10.376 0.92 0.812 10.5
M14 x 1 14 1 0.144 13.35 12.773 12.917 0.613 0.541 13
M14 x 1.25 14 1.25 0.18 13.188 12.466 12.647 0.767 0.677 12.8
M14 x 1.5 14 1.5 0.217 13.026 12.16 12.376 0.92 0.812 12.5
M15 x 1 15 1 0.144 14.35 13.773 13.917 0.613 0.541 14
M15 x 1.5 15 1.5 0.217 14.026 13.16 13.376 0.92 0.812 13.5
M16 x 1 16 1 0.144 15.35 14.773 14.917 0.613 0.541 15
M16 x 1.5 16 1.5 0.217 15.026 14.16 14.376 0.92 0.812 14.5
M17 x 1 17 1 0.144 16.35 15.733 15.917 0.613 0.541 16
M17 x 1.5 17 1.5 0.217 16.026 15.16 15.376 0.92 0.812 15.5
M18 x 1 18 1 0.144 17.35 16.773 16.917 0.613 0.541 17
M18 x 1.5 18 1.5 0.217 17.026 16.16 16.376 0.92 0.812 16.5
M18 x 2 18 2 0.289 16.701 15.546 15.835 1.227 1.083 16
M20 x 1.0 20 1 0.144 19.35 18.773 18.917 0.613 0.541 19
M20 x 1.5 20 1.5 0.217 19.026 18.16 18.376 0.92 0.812 18.5
M20 x 2.0 20 2 0.289 18.701 17.546 17.835 1.227 1.083 18
M22 x 1.0 22 1 0.144 21.35 20.773 20.917 0.613 0.541 21
M22 x 1.5 22 1.5 0.217 21.026 20.16 20.376 0.92 0.812 20.5
M22 x 2.0 22 2 0.289 20.701 19.546 19.835 1.227 1.083 20
M24 x 1.0 24 1 0.144 23.35 22.773 22.917 0.613 0.541 23
M24 x 1.5 24 1.5 0.217 23.026 22.16 22.376 0.92 0.812 22.5
M24 x 2.0 24 2 0.289 22.701 21.546 21.835 1.227 1.083 22
M25 x1.0 25 1 0.144 24.35 23.773 23.917 0.613 0.541 24
M25 x 1.5 25 1.5 0.217 24.026 23.16 23.376 0.92 0.812 23.5
M25 x 2.0 25 2 0.289 23.701 22.546 22.835 1.227 1.083 23
M27 x 1.0 27 1 0.144 26.35 25.773 25.917 0.613 0.541 26
M27 x 1.5 27 1.5 0.217 26.026 25.16 25.376 0.92 0.812 25.5
M27 x 2.0 27 2 0.289 25.701 24.546 24.835 1.227 1.083 25
M28 x 1.0 28 1 0.144 27.35 26.773 26.917 0.613 0.541 27
M28 x 1.5 28 1.5 0.217 27.026 26.16 26.376 0.92 0.812 26.5
M28 x 2.0 28 2 0.289 26.701 25.546 25.835 1.227 1.083 26