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Help CenterAnchor Bolt SS304 High Hardness Full Sizes Available Professional Grade for Concrete Infrastructure Projects
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As a reliable supplier based in Hefei, China, Hefei SENOTECH New Materials Co., Ltd is proud to present our Anchor Bolt SS304 High Hardness Full Sizes Available Professional Grade — designed specifically for demanding concrete infrastructure projects. Crafted from premium grade 304 stainless steel and processed for exceptional hardness, these anchor bolts offer outstanding durability, corrosion resistance, and load-bearing capacity. Whether you are constructing bridges, highways, tunnels, or industrial foundations, our bolts provide a secure anchoring solution that meets professional standards worldwide.
Our anchor bolts are manufactured with precision to ensure consistent thread quality and dimensional accuracy. The high hardness surface reduces wear during installation and extends service life in harsh environments. With full size availability ranging from M6 to M36 and lengths up to 600mm, we accommodate diverse project requirements. Each bolt undergoes rigorous quality checks to guarantee reliable performance under heavy loads and seismic conditions.
Key Features & Technical Specifications
- Material: 304 stainless steel (0Cr18Ni9) with excellent corrosion resistance against moisture, chemicals, and salt spray.
- High Hardness: Treated to achieve Rockwell C hardness ≥35, significantly higher than standard 304 bolts, reducing deformation and thread stripping.
- Full Size Range: Diameters from M6 to M36, lengths from 50mm to 600mm — available in standard and custom dimensions.
- Professional Grade: Conforms to common international standards (DIN 934, GB/T 5782, ASTM A193) for reliable performance in structural anchoring.
- Versatile Installation: Can be embedded in wet or cured concrete; available with hex nuts and washers as needed.
- Surface Options: Raw, plain, or passivated finish for enhanced aesthetics and corrosion protection (customizable upon request).
| Parameter | Specification |
|---|---|
| Material Grade | SS304 (UNS S30400) |
| Hardness (HRC) | ≥35 |
| Diameter Range | M6 – M36 |
| Length Range | 50mm – 600mm |
| Thread Pitch | Standard (coarse/fine available) |
| Tensile Strength (min) | 520 MPa |
| Yield Strength (min) | 210 MPa |
| Elongation | ≥40% |
The combination of high hardness and 304 stainless steel makes these anchor bolts ideal for outdoor and underground infrastructure where corrosion and mechanical stress are concerns. Compared to standard carbon steel bolts, our bolts require less maintenance and offer longer service intervals. The full thread option allows for better grip in concrete, while partial thread is available for applications requiring a smooth shank section.
Each bolt is individually inspected for thread pitch, diameter tolerance, and hardness consistency. We also offer custom sizes and packaging options (bulk bags, labeled cartons) to streamline logistics. For large-scale infrastructure projects, we can coordinate shipping to multiple destinations efficiently.
Trust & Reliability
Since our establishment in 2020, Hefei SENOTECH New Materials Co., Ltd has steadily built a reputation for quality and professionalism. With an annual export value of US$1 million to US$1.5 million, we serve clients across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and other global markets. Our products are trusted by engineering firms, construction contractors, and infrastructure developers for projects ranging from building foundations to highway guardrails.
We understand that anchoring systems are critical to safety and longevity. That is why we ensure every batch of anchor bolts meets our stringent quality standards. Our team provides technical support for selection and installation, helping you choose the right size and configuration. We also offer free sample testing (subject to freight charges) for qualified buyers, allowing you to verify performance before bulk orders.
Partner with us for a seamless procurement experience — from inquiry to delivery. Our dedicated customer service ensures timely communication and fast quotation. Contact us today to secure high-performance SS304 anchor bolts for your concrete infrastructure needs.
Frequently Asked Questions
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Q: What makes these anchor bolts different from regular stainless steel bolts?
A: Our bolts are specially treated to achieve high hardness (≥HRC 35), which provides better resistance to thread stripping and deformation under heavy loads. Combined with SS304 corrosion resistance, they offer superior durability in concrete applications. -
Q: What sizes are available? Can I get custom dimensions?
A: We offer full sizes from M6 to M36 diameter and 50mm to 600mm length. Custom dimensions are available upon request — please contact us with your requirements and quantities. -
Q: Are these bolts suitable for outdoor or underground use?
A: Yes. SS304 stainless steel provides excellent corrosion resistance against moisture, soil chemicals, and salt spray, making them ideal for exposed or buried concrete foundations. -
Q: Do you provide test certificates or material reports?
A: Yes, we can provide a mill test certificate for each batch upon request. Third-party testing is also available as an option. -
Q: What is the lead time for a typical order?
A: For standard sizes, lead time is approximately 7–15 days depending on quantity. Custom sizes may take 15–25 days. We expedite urgent orders when possible. -
Q: How are the bolts packaged for export?
A: We package in strong woven bags, cartons, or wooden pallets. Anti-corrosion treatment and labeling can be customized per your instructions. -
Q: Can I order samples first?
A: Yes, samples are available. Please cover the freight cost, and we will provide the sample product free of charge. Contact our sales team for details. -
Q: Do you ship to my country?
A: We export worldwide to the markets listed in our profile. Please provide your port of destination, and we will quote the best shipping options.
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