ASTM A325 A325M A490 Heavy Hex Structural Bolts

Heavy Hex Structural Bolt Product Describsion

Heavy hex structural bolts are typically made of carbon steel. Common strength grades are usually 4.8 and 8.8. Common surface treatments include black oxide or hot-dip galvanizing.

The selection of strength grades and surface treatments is generally determined based on the project’s design load and environmental conditions.

If you’re unsure about which material, strength, or surface treatment you need for your fastener products, please don’t hesitate to contact us. We’ll be happy to recommend the most suitable options for you!

Heavy Hex Structural Bolt Production Process

The manufacturing process of heavy hex structural bolts generally falls into two categories. Standard sizes are typically produced through cold heading, while larger sizes are manufactured through hot forging.

Here, we’ll introduce the common cold heading production method for heavy hex structural bolts:

Annealing of raw materials – pickling – drawing – forming – grinding – heat treatment – surface treatment – classification – packaging – shipping

The rough processing flowchart is as follows:

Heavy Hex Structural Bolt Application fields

Heavy hex structural bolts have various applications across different industries due to their strength and reliability. Here’s a breakdown of their common uses:

1. Construction and Building: They are extensively used in construction projects for connecting structural steel members, such as beams, columns, and trusses.

2. Bridges and Highways: Heavy hex structural bolts play a crucial role in the assembly of bridges, overpasses, and highway infrastructure, providing strong and durable connections.

3. Industrial Structures: They are employed in the assembly of industrial structures, including factories, warehouses, and industrial plants, ensuring stability and safety.

4. Power Plants: Heavy hex structural bolts are used in the construction of power plants, including thermal, hydroelectric, and nuclear facilities, for securing heavy equipment and structural components.

5. Transmission Towers: They are utilized in the assembly of transmission towers for electricity and telecommunication networks, providing secure connections between tower segments.

6. Railroad Infrastructure: Heavy hex structural bolts are used in the construction and maintenance of railroad infrastructure, including tracks, switches, and signaling equipment.

7. Marine Structures: They find application in marine construction projects such as docks, piers, and offshore platforms, where they provide strong connections resistant to corrosion and harsh environmental conditions.

8. Mining and Quarrying: Heavy hex structural bolts are used in mining and quarrying operations for securing equipment, machinery, and structural components in challenging environments.

9. Oil and Gas Industry: They are employed in the construction of oil rigs, refineries, pipelines, and offshore platforms, providing reliable connections in demanding offshore and onshore environments.

10. Heavy Machinery: Heavy hex structural bolts are used in the assembly of heavy machinery and equipment in various industries, including manufacturing, mining, and construction.

11. Wind Energy: They find application in the construction of wind turbines and wind farms, providing secure connections between tower sections, nacelles, and rotor blades.

12. Agricultural Structures: Heavy hex structural bolts are used in the construction of agricultural buildings, silos, and equipment sheds, providing strong connections for structural stability.

These examples demonstrate the wide range of applications where heavy hex structural bolts are essential for ensuring structural integrity, safety, and reliability.