Product Specifications
Parameter | Details |
Standard | DIN931 |
Size | M1.6-M160 |
Material | Carbon steel, Alloy Steel, Stainless steel |
Coating | Plain, Black, Galvanized, H.D.G, YZP, Dacromet, Geomet, Polishing |
Grade | 4.8, 6.8, 8.8, 10.9, 12.9, A2-50, A2-70, A4-50, A4-70, A4-80 |
Thread | Half thread |
MOQ | 1 Ton |
Packaging | 25kgs/box, 36 boxes/pallet, 900kgs/pallet. Custom packaging available as per client requirements. |
Understanding the DIN931 Standard
What is the DIN931 Standard?
DIN931 is an international standard for hexagonal bolts developed by the German National Organization for Standardization (DIN). It is designed for fast installation and high reliability.
DIN931 Design Features
The bolt head is hexagonal, and only part of the shank is threaded. The non-threaded section can provide shear resistance, while the threaded section is used to quickly screw into the connector, significantly improving assembly efficiency. It is suitable for scenes that require frequent disassembly (such as mechanical equipment and automobile manufacturing).
Material Choices and Their Impact
Material Options for Hex Bolts
Covering carbon steel (such as Gr8.8/10.9), stainless steel (A2/A4 grade), alloy steel, etc., choose the appropriate material according to different strength and corrosion resistance requirements.
Choose the right material according to the environment
Stainless steel (304/316) or galvanized carbon steel is preferred in humid and corrosive environments (such as chemical equipment and marine engineering) to improve corrosion resistance.
Load strength:
High-strength alloy steel (such as 35CrMo, SCM435) is required for high-load scenarios (building structures, heavy machinery), and the tensile strength can reach more than 800MPa.
Carbon steel (Gr8.8/10.9) can be used for medium and low loads (ordinary equipment), which is more cost-effective.
Compatibility and cost:
When it needs to contact with other metal parts, matching materials are preferred (such as avoiding direct contact between stainless steel and carbon steel to cause galvanic corrosion).
When the budget is limited, galvanized carbon steel or blackening can balance corrosion resistance and cost.
Manufacturing Process and Quality Assurance
How Our Hex Bolts are Manufactured
According to the standard requirements, select appropriate materials.Raw material selection and forming-thread processing technology-Heat treatment strengthening-Inspection.Every step of the production process is strictly controlled.
Quality Assurance and Testing
Every step of production is strictly carried out in accordance with the corresponding production standards.
It has passed ISO9001:2008 quality management system certification, and each batch of products is accompanied by a material composition report and a mechanical properties certificate.
Choosing the Right Hex Bolts
How to Choose the Right Hex Bolts
You can choose the appropriate hexagonal bolt based on the priority of environmental tolerance > load strength > cost control. Or you can tell us your usage scenario and our team will recommend the appropriate bolt for you.
Why Choose Topbolt for Your Hex Bolts?
Choosing Topbolt for your Hex Bolts means opting for a partner who values quality, reliability, and customer satisfaction. Our commitment to excellence is reflected in every bolt we manufacture. With a wide range of sizes, materials, and finishes, we are confident that we can meet all your fastening needs.
Applications and Advantages of Hex Bolts
Applications of Hex Bolts
It is mostly used for bridges, high-rise buildings, factory building structure connections, etc., and generally uses
high-strength bolts to ensure stability.
It can also be used in key parts of heavy machinery such as excavators, cranes, and other equipment assembly.
Advantages of Using Topbolt's Hex Bolts
Hex Bolts are indispensable in various industries, including construction, automotive, and machinery. They are used to secure steel structures, ensuring stability and safety. Our bolts are designed to withstand heavy loads and harsh conditions, making them suitable for a wide range of applications.
FAQ About Hex Bolts
Q: What is the difference between DIN931 and other standards?
A: DIN931 is specifically designed for hexagon bolts and provides detailed specifications for dimensions and mechanical properties. Other standards may vary in these aspects, making DIN931 a preferred choice for many applications.
Q: Can I customize the packaging of Hex Bolts?
A: Yes, we offer custom packaging solutions to meet your specific requirements. Our standard packaging is 25kgs/box, 36 boxes/pallet, 900kgs/pallet, but we can adjust this as per your needs.
Q: How do I know which grade of bolt to choose?
A: The choice of bolt grade depends on the load and stress requirements of your application. Our team can help you determine the appropriate grade based on your specific needs.
Contact Us for More Information
After reviewing our product details and the comprehensive information provided, we invite you to Contact Topbolt Metalworks to learn more about our Hex Bolts. Our sales office is located at ROOM1-3, NO.34, BUILDING 5, EASTERN BUSINESS CENTRE, JIANGDONG DISTRICT, NINGBO, CHINA. You can reach us at Tel: 0086-574-86595122, Fax: 0086-574-86657066, or via E-mail: sales2@topboltmfg.com. We are eager to discuss how our high-quality Hex Bolts can meet your fastening needs.
