In the variety of metal fasteners, DIN 553 Slotted Set Screws occupies a special position due to its use. DIN 553 Screw Fastening element attracts attention not only by its appearance, but also by its function application. It stops the separation of planes, assemblies and parts. The original solution for a strong connection between the two structural elements was found by a somewhat unconventional method, using a cylindrical rod with a conical tip. On the outer side of the cylindrical rod, metric thread is cut.
| D | M2 | M2,5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 |
|---|---|---|---|---|---|---|---|---|---|
| P 1) | 0,4 | 0,45 | 0,5 | 0,7 | 0,8 | 1 | 1,25 | 1,5 | 1,75 |
| N | 0,25 | 0,4 | 0,4 | 0,6 | 0,8 | 1 | 1,2 | 1,6 | 2 |
| T | 1,2 | 1,33 | 1,5 | 2,05 | 2,35 | 2,9 | 3,6 | 4,25 | 5 |
| Z2 | 1 | 1,25 | 1,5 | 2 | 2,5 | 2,5 | 3 | 4 | 5 |
| DT max | 0,2 | 0,25 | 0,3 | 0,4 | 0,5 | 1,5 | 2 | 2,5 | 3 |