Products Description
The DIN6921 Galvanized Hex Flange Bolt is a high-quality fastening solution designed for use in a wide range of industrial applications. Made from durable steel and galvanized to provide enhanced corrosion resistance, this bolt features a hexagonal head with an integrated flange, ensuring a secure and reliable fastening. The flange offers additional load-bearing capacity, distributing the pressure evenly across the surface. It is designed in accordance with the DIN 6921 standard, ensuring compatibility and performance for various assembly and structural requirements.
Technical Parameters:
Material: Carbon Steel, Alloy Steel
Standard: DIN 6921
Finish: Galvanized (Hot-Dip or Electroplated)
Head Type: Hexagonal with Flange
Thread Type: Metric Threads
Grade: 8.8, 10.9, 12.9 (depending on application)
Sizes: M6 to M30 (varies based on customer requirements)
Coating Thickness: 8-12 µm for Electroplated Zinc, 40-60 µm for Hot-Dip Galvanized
Strength: Minimum Yield Strength: 640 MPa, Ultimate Tensile Strength: 800 MPa (for Grade 8.8)
Products Process
The DIN6921 Galvanized Hex Flange Bolt is produced using advanced cold heading technology. The process includes the following steps:
Material Selection: High-strength carbon steel or alloy steel is chosen for the bolt, ensuring superior tensile strength and durability.
Cold Heading: The steel wire is heated and shaped into the desired bolt form using a high-precision cold-heading machine. This ensures uniform dimensions and structural integrity.
Thread Rolling: After the bolt shape is formed, the threads are rolled to meet DIN 6921 specifications, which ensures a tight, secure fit when used with corresponding nuts or threaded holes.
Flange Formation: The flange is integrated into the bolt's head during the heading process, providing additional support and surface contact for better load distribution.
Galvanizing: The bolts are dipped in a zinc bath to create a galvanized coating, which enhances the bolt's resistance to rust and corrosion, ensuring a longer lifespan in harsh environments.
Quality Control: Each bolt undergoes rigorous testing for tensile strength, corrosion resistance, and dimensional accuracy to meet DIN 6921 specifications.
Products Application
The DIN6921 Galvanized Hex Flange Bolt is commonly used in the following applications:
Construction: For securing heavy structural components, such as beams and columns.
Automotive: Used in car assembly for secure fastening of body panels, engine parts, and chassis components.
Machinery: Ideal for machinery assembly and repair, where high strength and corrosion resistance are required.
Heavy Equipment: Used in the construction of cranes, loaders, and other heavy machinery.
Outdoor and Marine: Thanks to its galvanized coating, this bolt is ideal for outdoor environments where exposure to moisture and weathering is common.
Electrical Installations: Used in electrical panel and equipment assembly.
FAQ
Q1: What is the benefit of the galvanized coating on the DIN6921 hex flange bolt?
A1: The galvanized coating provides enhanced corrosion resistance, making the bolts ideal for use in harsh environments, including outdoor and marine applications. It extends the service life of the bolts and ensures a durable and secure fastening.
Q2: What materials are available for DIN6921 galvanized hex flange bolts?
A2: The bolts are typically made from high-strength carbon steel or alloy steel. For specific applications, other materials can be used based on customer requirements, such as stainless steel.
Q3: What is the difference between electroplated and hot-dip galvanizing?
A3: Electroplated galvanizing involves coating the bolt with a thin layer of zinc through an electrochemical process, providing moderate corrosion resistance. Hot-dip galvanizing involves immersing the bolt in molten zinc, creating a thicker, more durable coating that provides superior corrosion resistance, especially in harsh environments.
Q4: Can these bolts be used in marine environments?
A4: Yes, the galvanized coating makes these bolts suitable for use in marine environments where exposure to saltwater and humidity is common. However, in highly corrosive marine environments, hot-dip galvanized bolts are recommended for maximum protection.
Q5: What sizes are available for DIN6921 galvanized hex flange bolts?
A5: DIN6921 bolts are available in sizes ranging from M6 to M30. Custom sizes can also be manufactured based on specific requirements. Please consult with our sales team for details.
Q6: What is the torque specification for these bolts?
A6: Torque specifications vary depending on the grade, size, and application of the bolt. It is recommended to refer to the product's specific technical data sheet or consult with an engineer for precise torque values.
Q7: Are these bolts available in different grades?
A7: Yes, the bolts are available in various grades, such as 8.8, 10.9, and 12.9, depending on the strength requirements of the application. Higher grades offer superior tensile strength for more demanding applications.
Q8: How do I know if these bolts meet the necessary standards for my project?
A8: The DIN6921 Galvanized Hex Flange Bolt complies with the DIN 6921 standard, ensuring it meets the required strength, threading, and corrosion resistance specifications for use in construction, automotive, machinery, and other industrial applications. For specific standards or certifications, please contact our customer support team.
For more details, please feel free to reach out to us.
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