Dimensioni filettatura metrica ISO
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The ISO Standardisation Authority defines strict specifications metric threads. This is to ensure compatibility with mating components. The table below shows various dimensions and the required tap drill diameter of coarse and fine threads M1 through to M68.
Tolerances should be considered when designing products. Values related to drilling and tapping can differ significantly depending on factors such as operating temperature and material.
Optimas are a full-service supply chain and manufacturing solutions provider. Before you design your next product or make updates to an existing product, consider partnering with Optimas to take advantage of our many capabilities.
All dimensions in millimeters (mm). For guidance only.
Filo |
Diametro maggiore (d=D) |
Pece
(P) |
Radice
Raggio (R) |
Pece
Diametro (d2=D2) |
Minore
Diametro Filetto maschio (d3) |
Minore
Diametro Filetto femminile (D1) |
Altezza della filettatura
Filetto maschio (h3) |
Altezza della filettatura
Filetto femminile (H1) |
Tocca Diametro foratura |
---|---|---|---|---|---|---|---|---|---|
M1 | 1 | 0.25 | 0.036 | 0.838 | 0.693 | 0.729 | 0.153 | 0.135 | 0.75 |
M1.1 | 1.1 | 0.25 | 0.036 | 0.938 | 0.793 | 0.829 | 0.153 | 0.135 | 0.85 |
M1.2 | 1.2 | 0.25 | 0.036 | 1.038 | 0.893 | 0.929 | 0.153 | 0.135 | 0.95 |
M1.4 | 1.4 | 0.3 | 0.043 | 1.205 | 1.032 | 1.075 | 0.184 | 0.162 | 1.1 |
M1.6 | 1.6 | 0.35 | 0.051 | 1.373 | 1.171 | 1.221 | 0.215 | 0.189 | 1.25 |
M1.8 | 1.8 | 0.35 | 0.051 | 1.573 | 1.371 | 1.421 | 0.215 | 0.189 | 1.45 |
M2 | 2 | 0.4 | 0.058 | 1.74 | 1.509 | 1.567 | 0.245 | 0.217 | 1.6 |
M2.2 | 2.2 | 0.45 | 0.065 | 1.908 | 1.648 | 1.713 | 0.276 | 0.244 | 1.75 |
M2.5 | 2.5 | 0.45 | 0.065 | 2.208 | 1.948 | 2.013 | 0.276 | 0.244 | 2.05 |
M3 | 3 | 0.5 | 0.072 | 2.675 | 2.387 | 2.459 | 0.307 | 0.271 | 2.5 |
M3.5 | 3.5 | 0.6 | 0.087 | 3.11 | 2.764 | 2.85 | 0.368 | 0.325 | 2.9 |
M4 | 4 | 0.7 | 0.101 | 3.545 | 3.141 | 3.242 | 0.429 | 0.379 | 3.3 |
M4.5 | 4.5 | 0.75 | 0.108 | 4.013 | 3.58 | 3.688 | 0.46 | 0.406 | 3.8 |
M5 | 5 | 0.8 | 0.115 | 4.48 | 4.019 | 4.134 | 0.491 | 0.433 | 4.2 |
M6 | 6 | 1 | 0.144 | 5.35 | 4.773 | 4.917 | 0.613 | 0.541 | 5 |
M7 | 7 | 1 | 0.144 | 6.35 | 5.773 | 5.917 | 0.613 | 0.541 | 6 |
M8 | 8 | 1.25 | 0.18 | 7.188 | 6.466 | 6.647 | 0.767 | 0.677 | 6.8 |
M9 | 9 | 1.25 | 0.18 | 8.188 | 7.466 | 7.647 | 0.767 | 0.677 | 7.8 |
M10 | 10 | 1.5 | 0.217 | 9.026 | 8.16 | 8.376 | 0.92 | 0.812 | 8.5 |
M11 | 11 | 1.5 | 0.217 | 10.026 | 9.16 | 9.376 | 0.92 | 0.812 | 9.5 |
M12 | 12 | 1.75 | 0.253 | 10.863 | 9.853 | 10.106 | 1.074 | 0.947 | 10.2 |
M14 | 14 | 2 | 0.289 | 12.701 | 11.564 | 11.835 | 1.227 | 1.083 | 12 |
M16 | 16 | 2 | 0.289 | 14.701 | 13.546 | 13.835 | 1.227 | 1.083 | 14 |
M18 | 18 | 2.5 | 0.361 | 16.376 | 14.933 | 15.394 | 1.534 | 1.353 | 15.5 |
M20 | 20 | 2.5 | 0.361 | 18.376 | 16.933 | 17.294 | 1.534 | 1.353 | 17.5 |
M22 | 22 | 2.5 | 0.361 | 20.376 | 18.933 | 19.294 | 1.534 | 1.353 | 19.5 |
M24 | 24 | 3 | 0.433 | 22.051 | 20.319 | 20.752 | 1.84 | 1.624 | 21 |
M27 | 27 | 3 | 0.433 | 25.051 | 23.319 | 23.752 | 1.84 | 1.624 | 24 |
M30 | 30 | 3.5 | 0.505 | 27.727 | 25.706 | 26.211 | 2.147 | 1.894 | 26.5 |
M33 | 33 | 3.5 | 0.505 | 30.727 | 28.706 | 29.211 | 2.147 | 1.894 | 29.5 |
M36 | 36 | 4 | 0.577 | 33.402 | 31.093 | 31.67 | 2.454 | 2.165 | 32 |
M39 | 39 | 4 | 0.577 | 36.402 | 34.093 | 34.67 | 2.454 | 2.165 | 35 |
M42 | 42 | 4.5 | 0.65 | 39.077 | 36.479 | 37.129 | 2.76 | 2.436 | 37.5 |
M45 | 45 | 4.5 | 0.65 | 42.077 | 39.479 | 40.129 | 2.76 | 2.436 | 40.5 |
M48 | 48 | 5 | 0.722 | 44.752 | 41.866 | 42.857 | 3.067 | 2.706 | 43 |
M52 | 52 | 5 | 0.722 | 48.752 | 45.866 | 46.857 | 3.067 | 2.706 | 47 |
M56 | 56 | 5.5 | 0.794 | 52.428 | 49.252 | 50.046 | 3.374 | 2.977 | 50.5 |
M60 | 60 | 5.5 | 0.794 | 56.428 | 53.252 | 54.046 | 3.374 | 2.977 | 54.5 |
M64 | 64 | 6 | 0.866 | 60.103 | 56.639 | 57.505 | 3.681 | 3.248 | 58 |
M68 | 68 | 6 | 0.866 | 64.103 | 60.639 | 61.505 | 3.681 | 3.248 | 62 |
Filo
Misurare |
Maggiore
Diametro d=D |
Pece
P |
Radice
Raggio R |
Pece
Diametro d2=D2 |
Minore
Diametro Maschio Filo d3 |
Minore
Diametro Femmina Filo D1 |
Filo
Altezza Maschio Filo h3 |
Filo
Altezza Femmina Filo H1 |
Rubinetto
Trapano Diametro |
---|---|---|---|---|---|---|---|---|---|
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 |
M1,2×0,2 | 1.2 | 0.2 | 0.029 | 1.07 | 0.955 | 0.983 | 0.123 | 0.108 | 1 |
M1,4×0,2 | 1.4 | 0.2 | 0.029 | 1.27 | 1.155 | 1.183 | 0.123 | 0.108 | 1.2 |
M1,6×0,2 | 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 |
M2×0,25 | 2 | 0.25 | 0.036 | 1.838 | 1.693 | 1.729 | 0.153 | 0.135 | 1.75 |
M2,2×0,25 | 2.2 | 0.25 | 0.036 | 2.038 | 1.893 | 1.929 | 0.153 | 0.135 | 1.95 |
M2,5×0,35 | 2.5 | 0.35 | 0.051 | 2.273 | 2.071 | 2.121 | 0.215 | 0.189 | 2.1 |
M3×0,35 | 3 | 0.35 | 0.051 | 2.773 | 2.571 | 2.621 | 0.215 | 0.189 | 2.6 |
M3,5×0,35 | 3.5 | 0.35 | 0.051 | 3.273 | 3.071 | 3.121 | 0.215 | 0.189 | 3.1 |
M4×0,5 | 4 | 0.5 | 0.072 | 3.675 | 3.387 | 3.459 | 0.307 | 0.271 | 3.5 |
M4,5×0,5 | 4.5 | 0.5 | 0.072 | 4.175 | 3.887 | 3.959 | 0.307 | 0.271 | 4 |
M5×0,5 | 5 | 0.5 | 0.072 | 4.675 | 4.387 | 4.459 | 0.307 | 0.271 | 4.5 |
M5,5×0,5 | 5.5 | 0.5 | 0.072 | 5.175 | 4.887 | 4.959 | 0.307 | 0.271 | 5 |
M6×0,75 | 6 | 0.75 | 0.108 | 5.513 | 5.08 | 5.188 | 0.46 | 0.406 | 5.2 |
M7×0,75 | 7 | 0.75 | 0.108 | 6.513 | 6.08 | 6.188 | 0.46 | 0.406 | 6.2 |
M8×0,75 | 8 | 0.75 | 0.108 | 7.513 | 7.08 | 7.188 | 0.46 | 0.406 | 7.2 |
M8×1,0 | 8 | 1 | 0.144 | 7.35 | 6.773 | 6.917 | 0.613 | 0.541 | 7 |
M9×0,75 | 9 | 0.75 | 0.108 | 8.513 | 8.08 | 8.188 | 0.46 | 0.406 | 8.2 |
M9×1 | 9 | 1 | 0.144 | 8.35 | 7.773 | 7.917 | 0.613 | 0.541 | 8 |
M10×0,75 | 10 | 0.75 | 0.108 | 9.513 | 9.08 | 9.188 | 0.46 | 0.406 | 9.2 |
M10×1 | 10 | 1 | 0.144 | 9.35 | 8.773 | 8.917 | 0.613 | 0.541 | 9 |
M10×1,25 | 10 | 1.25 | 0.18 | 9.188 | 8.466 | 8.647 | 0.767 | 0.677 | 8.8 |
M11×0,75 | 11 | 0.75 | 0.108 | 10.513 | 10.08 | 10.188 | 0.46 | 0.406 | 10.2 |
M11×1 | 11 | 1 | 0.144 | 10.35 | 9.773 | 9.917 | 0.613 | 0.541 | 10 |
M12×1 | 12 | 1 | 0.144 | 11.35 | 10.773 | 10.917 | 0.613 | 0.541 | 11 |
M12×1,25 | 12 | 1.25 | 0.18 | 11.188 | 10.466 | 10.647 | 0.767 | 0.677 | 10.8 |
M12×1,5 | 12 | 1.5 | 0.217 | 11.026 | 10.16 | 10.376 | 0.92 | 0.812 | 10.5 |
M14×1 | 14 | 1 | 0.144 | 13.35 | 12.773 | 12.917 | 0.613 | 0.541 | 13 |
M14×1,25 | 14 | 1.25 | 0.18 | 13.188 | 12.466 | 12.647 | 0.767 | 0.677 | 12.8 |
M14×1,5 | 14 | 1.5 | 0.217 | 13.026 | 12.16 | 12.376 | 0.92 | 0.812 | 12.5 |
M15×1 | 15 | 1 | 0.144 | 14.35 | 13.773 | 13.917 | 0.613 | 0.541 | 14 |
M15×1,5 | 15 | 1.5 | 0.217 | 14.026 | 13.16 | 13.376 | 0.92 | 0.812 | 13.5 |
M16×1 | 16 | 1 | 0.144 | 15.35 | 14.773 | 14.917 | 0.613 | 0.541 | 15 |
M16×1,5 | 16 | 1.5 | 0.217 | 15.026 | 14.16 | 14.376 | 0.92 | 0.812 | 14.5 |
M17×1 | 17 | 1 | 0.144 | 16.35 | 15.733 | 15.917 | 0.613 | 0.541 | 16 |
M17×1,5 | 17 | 1.5 | 0.217 | 16.026 | 15.16 | 15.376 | 0.92 | 0.812 | 15.5 |
M18×1 | 18 | 1 | 0.144 | 17.35 | 16.773 | 16.917 | 0.613 | 0.541 | 17 |
M18×1,5 | 18 | 1.5 | 0.217 | 17.026 | 16.16 | 16.376 | 0.92 | 0.812 | 16.5 |
M18×2 | 18 | 2 | 0.289 | 16.701 | 15.546 | 15.835 | 1.227 | 1.083 | 16 |
M20×1,0 | 20 | 1 | 0.144 | 19.35 | 18.773 | 18.917 | 0.613 | 0.541 | 19 |
M20×1,5 | 20 | 1.5 | 0.217 | 19.026 | 18.16 | 18.376 | 0.92 | 0.812 | 18.5 |
M20×2,0 | 20 | 2 | 0.289 | 18.701 | 17.546 | 17.835 | 1.227 | 1.083 | 18 |
M22×1,0 | 22 | 1 | 0.144 | 21.35 | 20.773 | 20.917 | 0.613 | 0.541 | 21 |
M22×1,5 | 22 | 1.5 | 0.217 | 21.026 | 20.16 | 20.376 | 0.92 | 0.812 | 20.5 |
M22×2,0 | 22 | 2 | 0.289 | 20.701 | 19.546 | 19.835 | 1.227 | 1.083 | 20 |
M24×1,0 | 24 | 1 | 0.144 | 23.35 | 22.773 | 22.917 | 0.613 | 0.541 | 23 |
M24×1,5 | 24 | 1.5 | 0.217 | 23.026 | 22.16 | 22.376 | 0.92 | 0.812 | 22.5 |
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