Description
SS 304 (AISI 304/EN 1.4301) is the standard austenitic “18/8” stainless steel known for good corrosion resistance, formability, and hygiene, widely used in food equipment, chemical processing, architecture, and fasteners.
Typical main elements (wt% ranges): Cr 17.5–19.5, Ni 8.0–10.5, C ≤0.08, Mn ≤2.0, Si ≤1.0; Fe balance, with P ≤0.045 and S ≤0.03 kept low for weldability.
| DIN 933 Hex Screw | |||
| Bolt Size (Metric) | Thread Pitch (P) (mm) | Across Flats (s) (mm) | Head Thickness (k) (mm) |
| M6 | 1 | 10 | 4 |
| M8 | 1.25 | 13 | 5.3 |
| M10 | 1.5 | 17 | 6.4 |
| M12 | 1.75 | 19 | 7.5 |
| M14 | 2 | 22 | 8.8 |
| M16 | 2 | 24 | 10 |
| M18 | 2.5 | 27 | 11.5 |
| M20 | 2.5 | 30 | 12.5 |
