Hex Bolt Size Guide & Specifications
At DYN Fasteners, we manufacture a wide range of Hex Bolts engineered for high performance, strength, and durability. Designed to meet international standards (DIN, ISO, ASTM, and BS), our hex bolts are suitable for critical applications across automotive, construction, machinery, and aerospace industries.
Each bolt is precision-machined from high-quality raw materials and tested for tensile strength, hardness, and dimensional accuracy to ensure consistent performance under demanding conditions. We also provide custom sizes, finishes, and materials to meet your specific project requirements.
Standard Hex Bolt Size Chart
| Diameter (mm) | Thread Pitch (mm) | Length (mm) | Head Width (mm) | Head Thickness (mm) |
|---|---|---|---|---|
| M6 | 1.0 | 10–150 | 10 | 4.8 |
| M8 | 1.25 | 15–200 | 13 | 5.3 |
| M10 | 1.5 | 20–250 | 16 | 6.4 |
| M12 | 1.75 | 25–300 | 18 | 7.5 |
| M16 | 2.0 | 30–400 | 24 | 10 |
Note: Custom diameters, thread pitches, and lengths are available upon request to meet project-specific or industry-specific needs.
Product Highlights
- Manufactured from high-tensile alloy steel, stainless steel, and carbon steel
- Available in zinc-plated, hot-dip galvanized, black oxide, and custom finishes
- Compliant with ISO, DIN, ASTM, and BS standards
- Precision threads for easy installation and maximum grip strength
- Corrosion-resistant coating ensures long-term performance in harsh environments
- Custom manufacturing available for special grades and dimensions
DYN Fasteners is committed to providing durable, high-performance fastening solutions tailored to your engineering needs. Whether you require standard sizes or specialized designs, our Hex Bolts deliver unmatched reliability and precision for every industrial application.
