


These hexagonal nuts are used for connections, which are often tightend and released. They are executed in a way that washers are not needed.
Designation of a hexagonal nut with collar with thread M 20
Hexagonal nut DIN 6331 M20
- Deliverable with fine pitch, higher grades, in stainless or other special material too.
- Material : up to M 36 – 8 or 10
Material : DIN EN 20898T2 > M 36
240 + 62 HV 30 (188 + 114 HV 30 tolerable)
Dimensions in mm
Sizes in [ ] not included in the standard
On client’s request we produce any of our (standard)-parts from heat-resisting steels, tough-at-sub-zero-steels, other special alloied materials, or stainless steels. Special kinds of threads, exacting tolerances or functional changes of standards can be considered immediately because of our complete storage of blanks.
Thread d | a | d1 h13 | da min. | e | m | s | kg/100 |
---|---|---|---|---|---|---|---|
M6 | 3 | 14 | 6 | 11,05 | 9 | 10 | 0,55 |
M8 | 3,5 | 18 | 8 | 14,38 | 12 | 13 | 1,24 |
M10 | 4 | 22 | 10 | 17,77 | 15 | 16 | 2,2 |
M12 | 4 | 25 | 12 | 20,03 | 18 | 18 | 3,0 |
[M 14] | 4 | 28 | 14 | 24,49 | 21 | 22 | 5,23 |
M 16 | 5 | 31 | 16 | 26,75 | 24 | 24 | 6,8 |
[M 18] | 5 | 34 | 18 | 29,56 | 27 | 27 | 9,4 |
M 20 | 6 | 37 | 20 | 33,53 | 30 | 30 | 12,4 |
[M 22] | 6 | 40 | 22 | 35,03 | 33 | 32 | 15,5 |
M 24 | 6 | 45 | 24 | 39,98 | 36 | 36 | 21,9 |
M 27 | 7 | 50 | 27 | 45,63 | 40 | 41 | 32 |
M 30 | 8 | 58 | 30 | 51,28 | 45 | 46 | 46,6 |
[M 33] | 10 | 60 | 33 | 55,37 | 50 | 50 | 60,6 |
M 36 | 10 | 68 | 36 | 61,31 | 54 | 55 | 79 |
[M 39] | 10 | 75 | 39 | 66,44 | 59 | 60 | 103 |
M 42 | 12 | 80 | 42 | 72,61 | 63 | 65 | 129 |
[M 45] | 12 | 85 | 45 | 76,59 | 68 | 70 | 162,5 |
M 48 | 14 | 92 | 48 | 83,91 | 72 | 75 | 197 |
[M 52] | 15 | 95 | 52 | 88,25 | 78 | 80 | 237 |
[M 56] | 16 | 100 | 56 | 93,56 | 84 | 85 | 281,6 |
[M 60] | 18 | 105 | 60 | 99,21 | 90 | 90 | 345 |
[M 64] | 20 | 110 | 64 | 104,86 | 96 | 95 | 395 |