Precision Manufacturing, Maximum Strength
We apply high engineering standards across our hot forging and galvanizing processes. Our fastener production complies with international norms and performs reliably under demanding industrial conditions.
High-tonnage hot forging press in operation, glowing billet, modern and clean facility
The Hot Forging Process
- 01
Induction Heating
Raw material is heated uniformly to optimum forging temperature in induction furnaces, preserving its structural integrity.
- 02
Precision Forming
Forming takes place under high-tonnage presses without severing the grain flow of the material, maximising the fatigue resistance of the part.
- 03
Heat Treatment
Quenching and tempering under controlled atmosphere to reach the required property classes (8.8, 10.9, 12.9).
Corrosion Protection
Our hot-dip (HDG) and electro-galvanizing processes keep fasteners serviceable in aggressive environments. Zinc coating thicknesses are controlled to ASTM and DIN standards.
- Hot-Dip Galvanizing (HDG)40 – 80 µm
- Electro-Galvanizing5 – 12 µm
- Salt Spray TestingISO 9227
Quality Certifications
Standard Production Specifications
| Product Group | Diameter (d) | Length (L) | Property Class | Standard |
|---|---|---|---|---|
| Hexagon Head Bolts | M12 – M100 | 30 – 1000 mm | 8.810.9 | DIN 931 / 933 |
| Stud Bolts / Threaded Rods | M16 – M100 | 100 – 6000 mm | 5.88.8 | DIN 975 / 976 |
| Structural Steel Bolts | M12 – M36 | 30 – 300 mm | 10.9 | EN 14399-4 |
| Heavy Hex Nuts | M12 – M100 | — | 810 | DIN 934 / EN 14399 |
The table shows our standard production ranges. Please contact us for requirements outside these ranges.