Overview
When your project demands uncompromising clamping force and ultimate weather resistance, Tendon Technology Metal delivers. We specialize in manufacturing high-strength DIN 933 fully threaded hex head bolts in Class 8.8, 10.9, and 12.9. Combined with our premium Hot-Dip Galvanized (HDG) surface treatment, these structural fasteners are the top choice for heavy machinery, steel structures, bridge construction, and outdoor infrastructure worldwide.
Technical Specifications
- Standard: DIN 933 / ISO 4017 (Fully Threaded)
- Material: Premium Carbon Steel & Alloy Steel
- High-Strength Property Class: 8.8, 10.9, 12.9 (Rigorously tested for ultimate tensile strength)
- Thread Type: Metric standard thread (Precision rolled for high fatigue resistance)
- Advanced Surface Treatment: Hot-Dip Galvanized (HDG) for maximum rust protection, Zinc Plated, Black Oxide, or Plain.
Why Choose Tendon Fasteners for High-Strength HDG Bolts?
- Guaranteed Mechanical Performance: As an ISO 9001:2015 [cite: 8] and ISO 45001:2018 [cite: 49] certified factory, we don’t just promise strength—we prove it. Every batch is subjected to rigorous tensile and yield testing using our advanced in-house WAW-600D Universal Testing Machines.
- Superior HDG Corrosion Resistance: Our Hot-Dip Galvanizing process ensures a thick, uniform, and tightly bonded zinc coating, providing decades of maintenance-free corrosion protection in harsh marine and industrial environments.
- Massive Capacity & 7-Day Dispatch: Leveraging our 6,000-ton annual capacity, we maintain a robust inventory of high-tensile standard sizes, guaranteeing a rapid 7-day fast delivery to keep your supply chain moving.
- 100% Digital Traceability: Our MES production execution system strictly enforces a “One Order, One Code” standard, ensuring every high-strength bolt is fully traceable to its original raw material heat number.
(Looking for matching high-strength nuts, heavy-duty washers, or customized HDG thickness specifications? Contact our engineering team for a comprehensive, one-stop sourcing solution.)
