DIN 933 is a metric hexagon head bolt that adheres to the Deutsches Institut für Normung (DIN) standard. These bolts are widely used in construction, machinery, and automotive applications due to their high tensile strength and durability. DIN 933 bolts feature a fully threaded shank, allowing for secure fastening in various structural and mechanical assemblies. Their hexagon head design enables easy tightening and loosening using a wrench or socket.
Key Features
- Fully Threaded Shank – Ensures strong grip and firm fastening.
- Hexagon Head Design – Allows easy tightening with standard tools.
- High Tensile Strength – Suitable for heavy-duty applications.
- Corrosion-Resistant Options – Available in stainless steel, zinc-plated, and galvanized coatings.
- Versatile Applications – Used in structural, industrial, and commercial projects.
Material and Classification
DIN 933 bolts are manufactured using various materials and strength grades to meet diverse industrial needs. Below is a breakdown of common material options and their classifications:
| Material Type | Strength Class | Common Coatings |
|---|---|---|
| Carbon Steel | 8.8, 10.9, 12.9 | Zinc-plated, Galvanized, Black Oxide |
| Stainless Steel | A2, A4 | Passivated, Electro-Polished |
| Brass | – | Uncoated |
Strength Class Notes:
- Class 8.8: Standard high-strength steel bolt.
- Class 10.9 & 12.9: Suitable for extreme loads and critical applications.
- A2 & A4 Stainless Steel: Ideal for corrosion resistance in outdoor or marine environments.
Applications
DIN 933 hex bolts are widely used in various industries, including but not limited to:
Industrial & Mechanical Engineering
- Machinery assembly
- Industrial equipment fastening
- Conveyor systems
Construction & Structural Engineering
- Steel frame connections
- Heavy-duty scaffolding
- Bridge construction
Automotive & Transportation
- Vehicle chassis fastening
- Engine mounting systems
- Rail and infrastructure projects
Advantages
✔ High Load-Bearing Capacity – Withstands heavy loads and stress.
✔ Corrosion Resistance – Available in multiple coatings to prevent rust and degradation.
✔ Interchangeability – Standardized dimensions ensure compatibility with various applications.
✔ Ease of Installation – Hexagonal head allows for quick and efficient tightening.
✔ Long Service Life – Durable materials provide extended operational use.
Compliance & Specifications
DIN 933 bolts comply with international quality and safety standards, ensuring reliability across industries.
| Standard | Specification |
|---|---|
| DIN 933 | Metric hexagon bolts (fully threaded) |
| ISO 4017 | Equivalent international standard |
| EN 14399 | Structural bolting requirements |
| ASTM A325 | Alternative high-strength bolt standard |
If you’re looking for high-quality DIN 933 hex bolts for your industrial, commercial, or structural applications, we offer a wide range of sizes and materials to meet your requirements. Contact us today to explore our inventory and discuss bulk order options!
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