Hot dip galvanized bolts are critical components in modern construction, manufacturing, and infrastructure projects. These fasteners combine the strength of high-grade steel with corrosion-resistant galvanization, making them ideal for both indoor and outdoor use. This article provides an in-depth analysis of their features, technical specifications, applications, and the company behind the product.

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

Hebei Longze Metal Products Manufacturing Co., Ltd. is a leading manufacturer of high-quality fasteners, specializing in hot dip galvanized bolts and related products. With a focus on precision engineering and durable materials, the company serves global markets, supplying fasteners for industries such as automotive, aerospace, and civil engineering. Their commitment to quality is reflected in compliance with international standards like ISO, DIN, and ASTM.

Product Overview

The hot dip galvanized bolts offered by Longze are designed for high-strength applications. They are available in multiple grades (4.8, 5.8, 6.8, 8.8, 10.9) and materials, including carbon steel and stainless steel. The galvanization process ensures long-term corrosion resistance, making these bolts suitable for harsh environments.

Key Features

• High Strength: Grade 8.8 and 10.9 bolts offer exceptional tensile strength.
• Corrosion Resistance: Hot dip galvanizing provides a durable zinc coating.
• Customizable Sizes: Ranges from M6 to M60 and lengths up to 6000mm.
• Compliance: Adheres to ISO 4017, DIN 933, and ANSI standards.

Technical Specifications

Parameter	Details
Material	Q235, 35K, 45K, 40Cr, B7, A2, A4, etc.
Grade	4.8, 5.8, 6.8, 8.8, 10.9
Surface Treatment	Hot dip galvanizing, zinc plating, black oxide, etc.
Standards	ISO, DIN, ANSI, ASME, ASTM, BS, JIS
Size Range	M6-M60 (1/4"–2.5")
Length Options	40mm–6000mm (customizable)

Applications

These bolts are widely used in:

• Structural steel construction
• Automotive manufacturing
• Marine and offshore equipment
• Industrial machinery
• Highway and bridge infrastructure

Product Images

Why Choose Longze?

Longze’s hot dip galvanized bolts are trusted for their durability, precision, and compliance with global standards. Their ability to customize sizes and finishes ensures they meet the unique needs of clients across industries.

References

1. National Institute of Standards and Technology (NIST) – Standards for material testing and quality assurance.

2. Hebei Longze Metal Products Manufacturing Co., Ltd. – Product specifications and technical data.