Dimensions in mm – source DIN 931-1 grade A and B | |||||||||||
Publication date: 09/1987 – Supersedes DIN 931-1: 03/1963 – DIN 931: 11/1970 | |||||||||||
d Thread size | P | s nom=max. | e min. | ds min | A | B | b (l<=125) | b (l>125<=200) | b (l>200) | ||
k min | k max | k min | k max | ||||||||
M 1.6 | 0.35 | 3.2 | 3.41 | 1.46 | 0.98 | 1.22 | – | – | 9 | 15 | 28 |
M 2 | 0.4 | 4 | 4.32 | 1.88 | 1.28 | 1.52 | – | – | 10 | 16 | 29 |
M 2.5 | 0.45 | 5 | 5.45 | 2.36 | 1.58 | 1.82 | – | – | 11 | 17 | 30 |
M 3 | 0.5 | 5.5 | 6.01 | 2.86 | 1.88 | 2.12 | – | – | 12 | 18 | 31 |
M3.5 | 0.6 | 6 | 6.58 | 3.32 | 2.28 | 2.52 | – | – | 13 | 19 | 32 |
M 4 | 0.7 | 7 | 7.66 | 3.82 | 2.68 | 2.92 | – | – | 14 | 20 | 33 |
M 5 | 0.8 | 8 | 8.87 | 4.82 | 3.35 | 3.65 | – | – | 16 | 22 | 35 |
M 6 | 1 | 10 | 11.05 | 5.82 | 3.85 | 4.15 | – | – | 18 | 24 | 37 |
M 7 | 1 | 7 | 12.12 | 5.82 | 4.65 | 4.95 | – | – | 20 | 26 | 41 |
M 8 | 1.25 | 13 | 14.38 | 6.78 | 5.15 | 5.45 | – | – | 22 | 28 | 41 |
M 10 | 1.5 | 17 | 18.90 | 9.78 | 6.22 | 6.58 | – | – | 26 | 32 | 45 |
M 12 | 1.75 | 19 | 21.10 | 11.7 | 7.32 | 7.68 | – | – | 30 | 36 | 45 |
M 14 | 2 | 22 | 24.49 | 13.7 | 8.62 | 8.98 | – | – | 34 | 40 | 53 |
M 16 | 2 | 24 | 26.75 | 15.7 | 9.82 | 10.2 | 9.71 | 10.3 | 38 | 44 | 57 |
M 18 | 2.5 | 27 | 30.14 | 17.7 | 11.3 | 11.7 | 11.2 | 11.9 | 42 | 48 | 61 |
M 20 | 2.5 | 30 | 33.53 | 19.7 | 12.3 | 12.7 | 12.2 | 12.9 | 46 | 52 | 65 |
M 22 | 2.5 | 32 | 35.72 | 21.7 | 13.8 | 14.2 | 13.7 | 14.4 | 50 | 56 | 69 |
M 24 | 3 | 36 | 39.98 | 23.7 | 14.8 | 15.2 | 14.7 | 15.4 | 54 | 60 | 73 |
M 27 | 3 | 41 | 45.2 | 26.5 | – | – | 16.7 | 17.4 | 60 | 66 | 79 |
M 30 | 3.5 | 46 | 50.85 | 29.5 | – | – | 18.3 | 19.1 | 66 | 72 | 85 |
M 33 | 3.5 | 50 | 55.37 | 32.4 | – | – | 20.6 | 21.4 | 72 | 78 | 91 |
M 36 | 4 | 55 | 60.79 | 35.4 | – | – | 22.1 | 22.9 | 78 | 84 | 97 |
M 39 | 4 | 60 | 66.44 | 38.4 | – | – | 24.6 | 25.4 | 84 | 90 | 103 |