DIN 1587 defines blind nuts, which feature a closed (blind) head structure. This design protects the threaded portion of the nut from external elements and provides an aesthetically pleasing appearance. The closed structure prevents the screw end from protruding, thereby enhancing safety. Blind nuts are commonly used in mechanical engineering, furniture construction, and the automotive industry. They are manufactured from durable materials such as steel and stainless steel, available in various size options. These nuts serve as ideal fastening elements for both functional and decorative purposes.
| d | m | h | s | e | dk | ⬢ |
|---|---|---|---|---|---|---|
| M3 | 2,4 | 7 | 5,5 | 6,01 | 5,5 | 5,5 |
| M4 | 3,2 | 8 | 7,0 | 7,66 | 6,5 | 7,0 |
| M5 | 4,0 | 10 | 8,0 | 8,79 | 7,5 | 8,0 |
| M6 | 5,0 | 12 | 10,0 | 11,05 | 9,5 | 10,0 |
| M8 | 6,5 | 15 | 13,0 | 14,38 | 12,5 | 13,0 |
| M10 | 8,0 | 18 | 17,0 | 18,90 | 16,0 | 17,0 |
| M12 | 10,0 | 22 | 19,0 | 21,10 | 18,0 | 19,0 |
| M14 | 11,0 | 25 | 22,0 | 24,49 | 21,0 | 22,0 |
| M16 | 13,0 | 28 | 24,0 | 26,75 | 23,0 | 24,0 |
| M18 | 15,0 | 32 | 27,0 | 30,14 | 26,0 | 27,0 |
| M20 | 16,0 | 34 | 30,0 | 33,53 | 28,0 | 30,0 |
| M22 | 18,0 | 39 | 34,0 | 37,72 | 33,0 | 34,0 |
| M24 | 19,0 | 42 | 36,0 | 39,98 | 34,0 | 36,0 |
| M27 | 20,0 | 47 | 41,0 | 47,30 | 40,0 | 41,0 |
| M30 | 24,0 | 52 | 46,0 | 52,00 | 42,0 | 46,0 |