DIN 558 Hexagon Head Screws Product Grade C; DIN 558 is a German standard that specifies hexagon head screws with ISO metric coarse threads, produced in Product Grade C, which is intended for general-purpose, non-precision applications.
It covers fully threaded hex screws (similar to a hex bolt but fully threaded), typically used in construction, machinery, and basic industrial assemblies.
Dimensions of DIN 558 Hexagon Head Screws
| Screw Thread (d) | M5 | M6 | M8 | M10 | M12 | M16 | M20 | M24 | M30 | M36 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| P (Pitch) | 0,8 | 1 | 1,25 | 1,5 | 1,75 | 2 | 2,5 | 3 | 3,5 | 4 | |
| s | 8 | 10 | 13 | 17 | 19 | 24 | 30 | 36 | 46 | 55 | |
| k | 3,5 | 4 | 5,3 | 6,4 | 7,5 | 10 | 12,5 | 15 | 18,7 | 22,5 | |
| e (min) | 8,63 | 10,89 | 14,2 | 18,72 | 20,88 | 26,17 | 32,95 | 39,55 | 50,85 | 60,79 | |
| a (max) | 3,2 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 14 | 16 | |
Technical Data provided by Fastener Planet