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**TC Bolts with Round Head Dacromet**
**Description:**
High Tensile Tension Control JSS II 09 S10T Bolt – designed for high-strength applications in demanding environments. These bolts are manufactured to meet international standards and are ideal for use in structural steel systems.
**Diameter Options:**
Available in M16, M20, M22, M24, M27, and M30 sizes, ensuring flexibility for a wide range of construction and engineering needs.
**Length Range:**
From 50mm to 250mm, making them suitable for various connection requirements.
**Grade Options:**
Available in 10.9S and 8.8 grades, offering high tensile strength and durability for critical structural applications.
**Standards Compliance:**
Compliant with GB, DIN, ISO, ANSI/ASTM, B7, BS, JIS, and other global standards, ensuring quality and reliability across different markets.
**Raw Materials:**
Made from premium materials such as 20MnTiB, ML20MnTiB, 35VB, 35CrMo, and more, providing excellent mechanical properties and corrosion resistance.
**Surface Finish:**
Available in black, HDG (hot-dip galvanized), zinc-plated, and Dacromet finishes, offering enhanced protection against rust and wear.
**Applications:**
Ideal for use in steel structures, multi-story buildings, high-rise steel frameworks, industrial facilities, highways, railways, power stations, and other heavy-duty structures.
**Free Samples Available:**
We offer free samples to help you evaluate the product before placing an order.
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**Assemble Nut and Washer Specifications:**
| Description | Grade | Raw Material | Size |
|------------|--------|---------------|------|
| Bolt | 10.9S | 20MnTiB | ≤24 |
| | | ML20MnTiB | |
| | | 35VB | |
| | | | ≤30 |
| | 8.8S | 45#, 35# | ≤20 |
| | | 20MnTiB, 40Cr, ML20MnTiB | ≤24 |
| | | 30CrMo | ≤30 |
| | | 35VB | |
| Nut | 10H | 45#, 35#, ML35 | - |
| | 8H | | |
| Washer | | 35HRC-45HRC | 45#, 35# |
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**Quality Assurance:**
Our products undergo rigorous testing to ensure compliance with international standards. We conduct:
- Tensile and proof load testing
- Rockwell hardness testing
- Micro HV hardness testing
- Dimensional measurement using digital calipers and micrometers
- Thread pitch gauging (internal and external)
- Drive penetration tests
- Angle measurement checks
This ensures every bolt meets the highest quality and performance standards.
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**Our Service Commitment:**
1. We provide professional solutions tailored to your specific needs.
2. We value honesty and offer the best service to our clients.
3. Our products are of the highest quality, with strict quality control measures in place.
4. We offer factory-direct sales at competitive prices.
5. We have a wide variety of products and provide excellent after-sales support to ensure customer satisfaction.
Whether you're working on a large-scale construction project or a smaller industrial application, we’re here to support you with reliable, high-performance fasteners. Let us be your trusted partner in steel construction!