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Product Overview
The Tower Bolt is a specialized fastener engineered for use in transmission towers, utility poles, and other high-tension structures. It features high-strength construction to withstand wind, vibration, and long-term environmental exposure.
Key Features
High-tensile strength design for critical structural connections
Corrosion-resistant coatings for long-term outdoor durability
Precision-manufactured threads for consistent torque and clamping force
Available in standard and custom sizes for tower construction requirements
Designed to meet industry standards for utility infrastructure
| Grade | 8.8 / 10.9 / 12.9 (ASTM A325/A490 equivalent) |
| Size Range | M12–M36 (custom lengths available) |
| Thread Type | Metric (ISO metric thread) |
| Standards | DIN 7990 / ASTM A325 / ASTM A490 / GB/T 1231 |
| Heat Treatment | Quenched and Tempered |
| Tensile Strength | ≥ 800–1200 MPa (grade-dependent) |
| Yield Strength | ≥ 640–1080 MPa (grade-dependent) |
| Hardness | HRC 22–39 (grade-dependent) |
| Head Style | Hex head / heavy hex head (structural design) |
| Thread Class | 6g (metric) |
| Operating Temperature | -40°C ~ 250°C |
| Material | Carbon Steel / Alloy Steel (weathering steel optional) |
| Surface Finish | HDG / Zinc Plated / Dacromet (anti-corrosion) |
| Matching Parts | Heavy hex nuts, flat washers, spring washers |
| Application | Power transmission towers, steel structures, wind turbines |
Applications
Power transmission towers, telecommunications poles, wind turbine structures, and utility line infrastructure.
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