Hot dip galvanized bolts are essential fasteners in modern industrial and construction applications, offering superior corrosion resistance and mechanical strength. This article provides an in-depth analysis of the Grade 8.8 hex bolts, their technical specifications, and their role in various industries. We also explore the company background of Hebei Longze Metal Products Manufacturing Co., Ltd., a leading supplier of galvanized bolts and stainless steel hex bolts.

Product Overview

The hot dip galvanized bolts offered by Hebei Longze are designed to meet the rigorous demands of industrial and construction sectors. These Grade 8.8 hex bolts are manufactured using high-quality carbon steel and stainless steel, ensuring exceptional tensile strength and durability. The hot dip galvanizing process provides a corrosion-resistant coating, making them ideal for outdoor and harsh environments.

Key Features and Benefits

Hot dip galvanized bolts are engineered to deliver high tensile strength, corrosion resistance, and versatility. Below are the core advantages:

• High Strength: The Grade 8.8 designation indicates a minimum tensile strength of 830 MPa, making these bolts suitable for heavy-duty applications.
• Corrosion Resistance: The hot dip galvanizing process coats the bolts with a zinc layer, protecting them from rust and environmental degradation.
• Customization: Available in M6-M60 sizes and 40mm-6000mm lengths, these bolts can be tailored to specific project requirements.
• Compliance: Adheres to ISO, DIN, ANSI, ASME, ASTM, and BS standards, ensuring global compatibility.

Technical Specifications

Parameter	Details
Material	Carbon steel (Q235, 35K, 45K, 40Cr, 20MnTiB) and stainless steel
Grade	4.8, 5.8, 6.8, 8.8, 10.9
Surface Finish	Hot dip galvanizing, zinc plating, black oxide, Teflon coating, etc.
Standards	ISO 4017, DIN 933, DIN 931, ANSI/ASME B18.2.1, ASTM A307, BS 4190
Size Range	M6-M60 (1/4"-2-1/2")
Length Range	40mm-6000mm (customizable)

Applications in Industry

Hot dip galvanized bolts are widely used in sectors requiring strength, durability, and resistance to corrosion. Key applications include:

• Construction: Structural steel connections, bridge components, and scaffolding.
• Manufacturing: Heavy machinery, automotive parts, and industrial equipment.
• Infrastructure: Highway signs, streetlights, and utility poles.
• Marine: Boat hulls, docks, and offshore platforms.

Company Background: Hebei Longze Metal Products Manufacturing Co., Ltd.

Hebei Longze Metal Products Manufacturing Co., Ltd. (LongZe in English) is a leading manufacturer of galvanized bolts, stainless steel hex bolts, and carbon steel fasteners. With over 20 years of experience, the company has established itself as a trusted supplier in the global market. LongZe adheres to international standards such as ISO 9001, ensuring consistent quality and customer satisfaction.

LongZe specializes in customized solutions for industries requiring high-strength fasteners. Their product range includes Grade 8.8 hex bolts, DIN933 and DIN931 bolts, and hot dip galvanized screws. The company’s commitment to innovation and quality has earned it a reputation for reliability and excellence.

For more information about LongZe’s products and services, visit their official website.

Industry Standards and Compliance

The hot dip galvanized bolts from LongZe comply with global standards to ensure interoperability and safety. Key standards include:

• ISO 4017: Standard for metric hex bolts with coarse threads.
• DIN 933: German standard for hex bolts with a 120° thread.
• ANSI/ASME B18.2.1: American standard for hex and square head bolts.
• ASTM A307: Standard for carbon steel bolts and screws.

These standards are critical for ensuring uniformity and safety in fastener applications. According to the National Institute of Standards and Technology (NIST), adherence to such standards is vital for technological advancement and industrial competitiveness. For more details on NIST’s role in standards development, visit their official website.

Why Choose Hot Dip Galvanized Bolts?

Hot dip galvanized bolts offer several advantages over plain steel or stainless steel bolts:

• Cost-Effective Corrosion Protection: The zinc coating provides long-term protection without the need for additional maintenance.
• Strength and Durability: The Grade 8.8 specification ensures they can withstand high stress and load-bearing requirements.
• Wide Availability: Available in various sizes, lengths, and finishes to suit diverse applications.

For a detailed comparison of galvanized bolts vs. stainless steel bolts, refer to the NIST research on material science.

Conclusion

Hot dip galvanized bolts are indispensable in modern engineering and construction. With their high strength, corrosion resistance, and compliance with international standards, they are a preferred choice for industries worldwide. Hebei Longze Metal Products Manufacturing Co., Ltd. continues to lead in providing reliable, high-quality fasteners that meet the evolving needs of the market.

For more information about galvanized bolts, Grade 8.8 hex bolts, or customized fastener solutions, visit the LongZe website.

References

1. National Institute of Standards and Technology (NIST). (n.d.). Standards and Measurements. Retrieved from https://www.nist.gov

2. LongZe. (n.d.). Hot Dip Galvanized Bolts. Retrieved from https://www.lzfasteners.com/hot-dip-galvanized-bolts.html