Description
Our Hex Socket Cap Screws (also known as Allen Head Bolts) are engineered for high-strength industrial applications. Manufactured in accordance with DIN 912 / ISO 4762 standards, these screws feature a cylindrical head and a recessed hexagonal drive, offering a clean, flush finish and superior torque transmission compared to traditional slotted screws.
Material Grade Comparison:
| Property | Carbon Steel (Grade 12.9) | Stainless Steel (A4-80 / 316) |
|---|---|---|
| Tensile Strength | 1220 MPa (Extremely High) | 800 MPa (High) |
| Corrosion Resistance | Low (Requires Plating) | Excellent (Saltwater/Sour Gas) |
| Typical Use Case | Automotive Engines, Heavy Machinery | Marine, Chemical, Medical Equipment |
Surface Treatment Options
To meet diverse environmental needs, we offer various finishes:
- Black Oxide: For lubrication and mild corrosion resistance (Standard for 12.9).
- Zinc Plated (Clear/Yellow): For general corrosion protection.
- Hot Dip Galvanized: For outdoor construction and extreme weather.
- Passivation: For enhancing the natural oxide layer of stainless steel.
Available Inventory (Partial List)
We maintain massive stock for immediate shipment. Custom sizes are available upon request.
| Diameter (d) | Pitch (mm) | Head Diameter (dk) | Head Height (k) | Socket Size (s) |
|---|---|---|---|---|
| M3 | 0.5 | 5.5 mm | 3.0 mm | 2.5 mm |
| M5 | 0.8 | 8.5 mm | 5.0 mm | 4.0 mm |
| M8 | 1.25 | 13.0 mm | 8.0 mm | 6.0 mm |
| M12 | 1.75 | 18.0 mm | 12.0 mm | 10.0 mm |
