


These hexagonal nuts are used for connections, which are often tightend and released. The spherical surface in combination with a 120° countersink or a conical socket DIN 6319 allows to compensate deviations of form or position.
Designation of a hexagonal nut form B with thread M 20:
Hexagonal nut DIN 6330 – B M20
Form B with one spherical surface
- The nuts are countersunk on both sides with 120° to the diameter d2.
- Deliverable with fine pitch, higher grades, in stainless or other special material too.
- Material : up to M 36 – 8 or 10
Materia : DIN EN 20898T2 > M 36
240 + 62 HV 30 (188 + 114 HV 30 tolerable)
Dimensions in mm
Sizes in [ ] not included in the standard
Thread d | d1 | d2 max. | e min. | m | r | s | kg/100 |
---|---|---|---|---|---|---|---|
M6 | 7 | 7 | 11,05 | 9 | 9 | 10 | 0,44 |
M8 | 9 | 9 | 14,38 | 12 | 11 | 13 | 0,96 |
M10 | 11,5 | 11 | 17,77 | 15 | 15 | 16 | 1,7 |
M12 | 14 | 13 | 20,03 | 18 | 17 | 18 | 2,4 |
[M 14] | 16 | 15 | 24,49 | 21 | 20 | 22 | 4,77 |
M 16 | 18 | 17 | 26,75 | 24 | 22 | 24 | 5,7 |
[M 18] | 20 | 19 | 29,56 | 27 | 25 | 27 | 8,8 |
M 20 | 22 | 21 | 33,53 | 30 | 27 | 30 | 10,7 |
[M 22] | 25 | 23 | 35,03 | 33 | 29 | 32 | 14 |
M 24 | 26 | 25 | 39,98 | 36 | 32 | 36 | 18,7 |
M 27 | 29 | 28 | 45,63 | 40 | 37 | 41 | 30 |
M 30 | 32 | 31 | 51,28 | 45 | 41 | 46 | 39,5 |
[M 33] | 45 | 35 | 55,37 | 50 | 45,5 | 50 | 47 |
M 36 | 38 | 37 | 61,31 | 54 | 50 | 55 | 67,9 |
[M 39] | 54 | 41 | 66,44 | 58 | 54 | 60 | 93 |
M 42 | 44 | 43 | 72,61 | 63 | 58 | 65 | 114 |
[M 45] | 66 | 47 | 76,59 | 68 | 63 | 70 | 158 |
M 48 | 52 | 50 | 83,91 | 72 | 67 | 75 | 178 |
[M 52] | 76 | 54 | 88,25 | 78 | 72 | 80 | 195 |
[M 56] | 81 | 58 | 93,56 | 84 | 78 | 85 | 267 |
[M 60] | 85 | 62 | 99,21 | 90 | 85 | 90 | 315 |
[M 64] | 90 | 70 | 104,86 | 102 | 95 | 95 | 368 |