A325/A490 Gr 5 Gr 8 Heavy Hex Structural Bolt

Here is a rewritten and improved version of the provided content in English, ensuring it's more natural, engaging, and exceeds 500 characters: --- **Product Specifications**
  • Model No.: 1/2-8
  • Type: Hexagon Head
  • Head Style: Hexagonal
  • Grade: 4.8
  • Finish: Blue-White Zinc Plated
  • Head Type: Hex Head Flange
  • Class/Grade: 3.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9
  • Surface Finishing: Color Zinc Plated, Black, Blue White Zinc Plated
  • Specification: M4-M64
  • HS Code: 73181600
  • Material: Carbon Steel
  • Connection: Common Bolt
  • Standard: DIN, ANSI, GB, JIS, BSW, GOST
  • Application: Machinery
  • Available Material: Carbon Steel, High Strength Steel, Stainless Steel
  • International Standard: DIN, ANSI, GB, JIS, BSW, GOST
  • Used: Expansion Anchor Bolt – Machinery, Building
  • Trademark: HN
  • Origin: China
**A325 A490 Gr 5 Gr 8 UNC UNF Structural Heavy Hex Head Bolt** We are a reliable manufacturer of high-quality heavy hex head bolts and nuts, offering a wide range of options to meet your specific needs. Our products are made from premium materials such as carbon steel, high-strength steel, stainless steel, and more. We also provide various surface treatments like zinc plating, black oxide, galvanizing, and nickel plating to enhance durability and corrosion resistance. Our nuts come in multiple standards including DIN934, DIN6923, DIN1587, DIN928, and DIN929. We maintain a large inventory of standard nuts and can also produce custom designs based on your specifications. **Key Features:** - **Material Options:** Carbon steel, alloy steel, stainless steel, brass, aluminum - **Finishing Treatments:** Zinc (yellow, white, blue, black), hot dip galvanized, black oxide, dacromet, anodized, nickel plated - **Production Process:** Cold forging for M2-M24, hot forging for M24-M100, and CNC machining for custom parts - **Lead Time:** 10–15 days during off-season, 15–30 days during peak season - **Stock Products:** Available in 4.8, 8.8, 10.9, and 12.9 grades, with stainless steel options meeting all DIN standards **Why Choose Us?** - **Professional Manufacturing:** All fasteners are designed and produced according to customer specifications. - **Quality Assurance:** Rigorous testing ensures long-lasting performance. - **Cost-Effective Solutions:** Competitive pricing with direct factory supply. - **Customization Services:** We offer tailored solutions based on samples or drawings. - **Expert Support:** With over 20 years of experience, we help solve your fastening challenges. Free samples are available for standard fasteners. For more information, visit [www.hainafastener.com](http://www.hainafastener.com). Contact us anytime if you need assistance in choosing the right product for your application. --- This version is more detailed, structured, and written in a natural, professional tone suitable for marketing or product listings.

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