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DIN931
HNF
HNF2024120504
Surface treatment
Galvanizing: It can be divided into electrogalvanizing and hot-dip galvanizing. Galvanized carbon steel heavy hexagonal bolts have good corrosion resistance, which can effectively prevent the bolts from being corroded by the external environment during use, prolong their service life, and are widely used in general industrial environments and outdoor structures.
Blackening treatment: A black oxide film is formed on the surface of the bolt through a chemical oxidation reaction. This oxide film can improve the wear resistance and rust resistance of the bolt, and can also play a certain decorative role. It is often used in some occasions that do not require high appearance but require certain protective performance.
Phosphating treatment: A phosphate conversion film is formed on the surface of the bolt. The conversion film can improve the corrosion resistance and lubrication performance of the bolt, reduce the friction coefficient of the bolt during tightening, make it easier to install, and prevent the bolt from loosening to a certain extent.
Construction industry: In the connection of building steel structures, it is used to fix steel beams, steel columns, trusses and other components. For example, in the construction of large stadiums, bridges, high-rise buildings, etc., carbon steel heavy hexagonal bolts can provide reliable connections to ensure the stability and safety of the structure.
Machinery manufacturing: Widely used in the manufacture and installation of various mechanical equipment, such as machine tools, engineering machinery, automobiles, ships, etc., to connect and fix mechanical parts to ensure the normal operation of equipment.
Electric power industry: In the construction of facilities such as power towers and substations, it is used to fix and connect metal components, bear the weight and tension of equipment and lines, and ensure the stability and reliability of power facilities.
Pipeline system: Used to connect pipelines, flanges and other components to ensure the sealing and stability of the pipeline system and prevent medium leakage. It has important applications in pipeline transportation systems in industries such as petroleum, chemical industry, and natural gas.
Haina is committed to providing customers with high-quality stainless steel standard fasteners and professional services to meet various engineering needs. We have a large amount of spot inventory to ensure fast delivery and save you waiting time. In addition, we provide the following value-added services to help your purchasing experience:
1. Free samples: provide samples for customer testing.
2. 3.1 Test report: quality test report that meets international standards.
3. Video factory inspection: support video factory inspection to demonstrate production process and quality management.
Advantages
- Sufficient inventory: quick response to order requirements.
- Quality assurance: strict quality control to ensure product reliability.
Haina is committed to providing efficient and high-quality fastener services.
What is the strongest strength bolt?
The strongest bolts are grade 12.9 bolts, made from alloy steel, with a tensile strength of up to 1,200 MPa.
What is the difference between a stud bolt and a heavy hex bolt?
A stud bolt is a threaded rod with nuts on both ends, used for flange connections, while a heavy hex bolt has a larger hexagonal head and is tightened with a wrench, typically used for structural and heavy-duty applications.
What is the difference between a hex bolt and a machine bolt?
A hex bolt has a hexagonal head and is partially threaded, while a machine bolt typically has a square or hex head and is fully threaded for precise assembly.
Surface treatment
Galvanizing: It can be divided into electrogalvanizing and hot-dip galvanizing. Galvanized carbon steel heavy hexagonal bolts have good corrosion resistance, which can effectively prevent the bolts from being corroded by the external environment during use, prolong their service life, and are widely used in general industrial environments and outdoor structures.
Blackening treatment: A black oxide film is formed on the surface of the bolt through a chemical oxidation reaction. This oxide film can improve the wear resistance and rust resistance of the bolt, and can also play a certain decorative role. It is often used in some occasions that do not require high appearance but require certain protective performance.
Phosphating treatment: A phosphate conversion film is formed on the surface of the bolt. The conversion film can improve the corrosion resistance and lubrication performance of the bolt, reduce the friction coefficient of the bolt during tightening, make it easier to install, and prevent the bolt from loosening to a certain extent.
Construction industry: In the connection of building steel structures, it is used to fix steel beams, steel columns, trusses and other components. For example, in the construction of large stadiums, bridges, high-rise buildings, etc., carbon steel heavy hexagonal bolts can provide reliable connections to ensure the stability and safety of the structure.
Machinery manufacturing: Widely used in the manufacture and installation of various mechanical equipment, such as machine tools, engineering machinery, automobiles, ships, etc., to connect and fix mechanical parts to ensure the normal operation of equipment.
Electric power industry: In the construction of facilities such as power towers and substations, it is used to fix and connect metal components, bear the weight and tension of equipment and lines, and ensure the stability and reliability of power facilities.
Pipeline system: Used to connect pipelines, flanges and other components to ensure the sealing and stability of the pipeline system and prevent medium leakage. It has important applications in pipeline transportation systems in industries such as petroleum, chemical industry, and natural gas.
Haina is committed to providing customers with high-quality stainless steel standard fasteners and professional services to meet various engineering needs. We have a large amount of spot inventory to ensure fast delivery and save you waiting time. In addition, we provide the following value-added services to help your purchasing experience:
1. Free samples: provide samples for customer testing.
2. 3.1 Test report: quality test report that meets international standards.
3. Video factory inspection: support video factory inspection to demonstrate production process and quality management.
Advantages
- Sufficient inventory: quick response to order requirements.
- Quality assurance: strict quality control to ensure product reliability.
Haina is committed to providing efficient and high-quality fastener services.
What is the strongest strength bolt?
The strongest bolts are grade 12.9 bolts, made from alloy steel, with a tensile strength of up to 1,200 MPa.
What is the difference between a stud bolt and a heavy hex bolt?
A stud bolt is a threaded rod with nuts on both ends, used for flange connections, while a heavy hex bolt has a larger hexagonal head and is tightened with a wrench, typically used for structural and heavy-duty applications.
What is the difference between a hex bolt and a machine bolt?
A hex bolt has a hexagonal head and is partially threaded, while a machine bolt typically has a square or hex head and is fully threaded for precise assembly.
