Metric Coarse Thread Dimensions

Metric Thread Drawing
Thread 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 Column 11
M1 1 0.25 0.036 0.838 0.693 0.729 0.153 0.135 0.75 Column 11 Value
M1.1 1.1 0.25 0.036 0.938 0.793 0.829 0.153 0.135 0.85 Column 11 Value 2
M1.2 1.2 0.25 0.036 1.038 0.893 0.929 0.153 0.135 0.95 Column 11 Value 3
M1.4 1.4 0.3 0.043 1.205 1.032 1.075 0.184 0.162 1.1 Column 11 Value 4
M1.6 1.6 0.35 0.051 1.373 1.171 1.221 0.215 0.189 1.25 Column 11 Value 5
M1.8 1.8 0.35 0.051 1.573 1.371 1.421 0.215 0.189 1.45 Column 11 Value 6
M2 2 0.4 0.058 1.74 1.509 1.567 0.245 0.217 1.6 Column 11 Value 7
M2.2 2.2 0.45 0.065 1.908 1.648 1.713 0.276 0.244 1.75 Column 11 Value 8
M2.5 2.5 0.45 0.065 2.208 1.948 2.013 0.276 0.244 2.05 Column 11 Value 9
M3 3 0.5 0.072 2.675 2.387 2.459 0.307 0.271 2.5 Column 11 Value 10
M3.5 3.5 0.6 0.087 3.11 2.764 2.85 0.368 0.325 2.9 Column 11 Value 11
M4 4 0.7 0.101 3.545 3.141 3.242 0.429 0.379 3.3 Column 11 Value 12
M4.5 4.5 0.75 0.108 4.013 3.58 3.688 0.46 0.406 3.8 Column 11 Value 13
M5 5 0.8 0.115 4.48 4.019 4.134 0.491 0.433 4.2 Column 11 Value 14
M6 6 1 0.144 5.35 4.773 4.917 0.613 0.541 5 Column 11 Value 15
M7 7 1 0.144 6.35 5.773 5.917 0.613 0.541 6 Column 11 Value 16
M8 8 1.25 0.18 7.188 6.466 6.647 0.767 0.677 6.8 Column 11 Value 17
M9 9 1.25 0.18 8.188 7.466 7.647 0.767 0.677 7.8 Column 11 Value 18
M10 10 1.5 0.217 9.026 8.16 8.376 0.92 0.812 8.5 Column 11 Value 19
M11 11 1.5 0.217 10.026 9.16 9.376 0.92 0.812 9.5 Column 11 Value 20
M12 12 1.75 0.253 10.863 9.853 10.106 1.074 0.947 10.2 Column 11 Value 21
M14 14 2 0.289 12.701 11.564 11.835 1.227 1.083 12 Column 11 Value 22
M16 16 2 0.289 14.701 13.546 13.835 1.227 1.083 14 Column 11 Value 23
M18 18 2.5 0.361 16.376 14.933 15.394 1.534 1.353 15.5 Column 11 Value 24
M20 20 2.5 0.361 18.376 16.933 17.294 1.534 1.353 17.5 Column 11 Value 25
M22 22 2.5 0.361 20.376 18.933 19.294 1.534 1.353 19.5 Column 11 Value 26
M24 24 3 0.433 22.051 20.319 20.752 1.84 1.624 21 Column 11 Value 27
M27 27 3 0.433 25.051 23.319 23.752 1.84 1.624 24 Column 11 Value 28
M30 30 3.5 0.505 27.727 25.706 26.211 2.147 1.894 26.5 Column 11 Value 29
M33 33 3.5 0.505 30.727 28.706 29.211 2.147 1.894 29.5 Column 11 Value 30
M36 36 4 0.577 33.402 31.093 31.67 2.454 2.165 32 Column 11 Value 31
M39 39 4 0.577 36.402 34.093 34.67 2.454 2.165 35 Column 11 Value 32
M42 42 4.5 0.65 39.077 36.479 37.129 2.76 2.436 37.5 Column 11 Value 33
M45 45 4.5 0.65 42.077 39.479 40.129 2.76 2.436 40.5 Column 11 Value 34
M48 48 5 0.722 44.752 41.866 42.857 3.067 2.706 43 Column 11 Value 35
M52 52 5 0.722 48.752 45.866 46.857 3.067 2.706 47 Column 11 Value 36
M56 56 5.5 0.794 52.428 49.252 50.046 3.374 2.977 50.5 Column 11 Value 37
M60 60 5.5 0.794 56.428 53.252 54.046 3.374 2.977 54.5 Column 11 Value 38
M64 64 6 0.866 60.103 56.639 57.505 3.681 3.248 58 Column 11 Value 39
M68 68 6 0.866 64.103 60.639 61.505 3.681 3.248 62 Column 11 Value 40