DIN 985 defines hexagonal locking nuts with a nylon (fiber) insert at the top, which helps prevent loosening due to vibrations and impacts. The hexagonal head design allows for easy tightening and loosening with standard tools. These nuts are commonly preferred in automotive, mechanical engineering, and industrial applications to ensure secure connections. They are made from durable materials such as steel and stainless steel and are available in various sizes and thread options, providing long-lasting and reliable connections.
| d | ⬢ | m | h | s | e |
|---|---|---|---|---|---|
| M2,5 | 5 | 3,5 | 2,3 | 5 | 5,50 |
| M3 | 5,5 | 2,4 | 2,4 | 5,5 | 6,01 |
| M4 | 7 | 2,9 | 2,9 | 7 | 7,66 |
| M5 | 8 | 3,2 | 3,2 | 8 | 8,79 |
| M6 | 10 | 4,0 | 6,0 | 10 | 11,05 |
| M8 | 13 | 5,5 | 8,0 | 13 | 14,38 |
| M10 | 17 | 6,5 | 10,0 | 17 | 18,90 |
| M12 | 19 | 8,0 | 12,0 | 19 | 21,10 |
| M14 | 22 | 9,5 | 14,0 | 22 | 24,49 |
| M16 | 24 | 10,5 | 16,0 | 24 | 26,75 |
| M18 | 27 | 13,0 | 18,5 | 27 | 29,56 |
| M20 | 30 | 14,0 | 20,0 | 30 | 32,95 |
| M22 | 32 | 15,0 | 22,0 | 32 | 35,03 |
| M24 | 36 | 15,0 | 24,0 | 36 | 39,55 |
| M27 | 41 | 17,0 | 27,0 | 41 | 45,20 |
| M30 | 46 | 19,0 | 30,0 | 46 | 50,85 |