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Attribute | Details |
Model No. | ASTM A325M/A490M Type 1 Heavy Hex Bolt |
Material | Carbon Steel,Alloy Steel |
Type | Hexagon Head |
Grade/Class | A325M, A490M |
Connection | Common Bolt |
Thread | Full Thread or Half Thread |
Finish | Plain,Black,Galvanized,H.D.G,Dacromet,Phosphate |
Application | Machinery, Structural Construction |
Package Sizes | 28×28×12 cm, 27×25×14.5 cm, 29×21.5×15 cm |
Standards | ASTM A325M,ASTM A490M |
Certifications | ISO9001:2015 |
Trademark | NGL or Customization Available |
Origin | Ningbo, Zhejiang, China |
HS Code | 7318150000 |
Heavy hex bolts are distinguished by their larger and thicker hexagonal heads compared to standard hex bolts. This design provides enhanced strength and durability, making them ideal for heavy-duty applications like steel structures, bridges, and machinery.
Applications of Heavy Hex Bolts
Construction: Used in structural connections for bridges, buildings, and infrastructure projects.
Machinery: Provides secure fastening in industrial and agricultural equipment.
Oil & Gas Industry: Essential for high-stress connections in pipelines and rigs.
Superior Strength
Manufactured from high-quality carbon steel, our bolts meet stringent ASTM A325M and A490M standards for tensile strength, making them suitable for critical applications.
Durable Finishes
Choose from zinc plating, black oxide, plain, or hot-dip galvanizing (H.D.G) to ensure optimal corrosion resistance and extended service life, even in harsh environments.
Versatility
Available in both full-threaded and half-threaded designs, these bolts offer flexibility for various fastening needs.
Compliance with International Standards
All our bolts adhere to ISO9001:2015, GB/T19001-2000, and ISO9001:2008 certifications, ensuring consistent quality and performance.
Material Selection
We carefully select premium carbon steel to ensure the bolts meet required strength and durability standards.
Precision Forging
Using advanced machinery, the bolt heads are forged to precise hexagonal shapes, ensuring accurate dimensions and compatibility.
Thread Rolling
Threads are rolled (not cut) for superior strength and a smooth finish, reducing stress points.
Finishing Options
Bolts are coated with zinc plating, black oxide, or H.D.G for corrosion resistance, based on customer specifications.
Rigorous Quality Control
Each batch undergoes stringent testing for dimensions, tensile strength, and coating adhesion, ensuring adherence to ASTM standards.
Feature | A325M Bolts | A490M Bolts |
Material | Medium Carbon Steel | Alloy Steel |
Strength | Lower tensile strength | Higher tensile strength |
Finish Options | Zinc Plated, Galvanized | Plain, Black Oxide |
Applications | Moderate load applications | High-stress applications |
FAQ
What is the difference between a standard hex bolt and a heavy hex bolt?
The heavy hex bolt features a larger and thicker head than a standard hex bolt, providing greater strength and better distribution of load in high-stress environments.
Can I get custom sizes and finishes?
Yes, we provide customized heavy hex bolts tailored to your size, material, and finish requirements. Contact us with your specifications for a personalized solution.
What certifications do your heavy hex bolts have?
All our bolts comply with ISO9001 standards and ASTM specifications, ensuring premium quality and performance.
Contact Us for Reliable Heavy Hex Bolts
We're here to support your project with top-quality ASTM A325M/A490M heavy hex bolts, competitive pricing, and reliable service. Whether you need bulk orders, custom finishes, or technical advice, we've got you covered.
Reach out to Topbolt Metalworks today:
Sales Office: ROOM1-3, No.34 Building 5, Eastern Business Centre, Jiangdong District, Ningbo, China
Factory Location: Yuyan, Xiepu Chemical Industrial Zone, Zhenhai District, Ningbo, China
Tel: +86-574-86595122
Fax: +86-574-86657066
Email: sales2@topboltmfg.com
Let us be your trusted fastener manufacturer and supplier for all your heavy-duty applications.
Attribute | Details |
Model No. | ASTM A325M/A490M Type 1 Heavy Hex Bolt |
Material | Carbon Steel,Alloy Steel |
Type | Hexagon Head |
Grade/Class | A325M, A490M |
Connection | Common Bolt |
Thread | Full Thread or Half Thread |
Finish | Plain,Black,Galvanized,H.D.G,Dacromet,Phosphate |
Application | Machinery, Structural Construction |
Package Sizes | 28×28×12 cm, 27×25×14.5 cm, 29×21.5×15 cm |
Standards | ASTM A325M,ASTM A490M |
Certifications | ISO9001:2015 |
Trademark | NGL or Customization Available |
Origin | Ningbo, Zhejiang, China |
HS Code | 7318150000 |
Heavy hex bolts are distinguished by their larger and thicker hexagonal heads compared to standard hex bolts. This design provides enhanced strength and durability, making them ideal for heavy-duty applications like steel structures, bridges, and machinery.
Applications of Heavy Hex Bolts
Construction: Used in structural connections for bridges, buildings, and infrastructure projects.
Machinery: Provides secure fastening in industrial and agricultural equipment.
Oil & Gas Industry: Essential for high-stress connections in pipelines and rigs.
Superior Strength
Manufactured from high-quality carbon steel, our bolts meet stringent ASTM A325M and A490M standards for tensile strength, making them suitable for critical applications.
Durable Finishes
Choose from zinc plating, black oxide, plain, or hot-dip galvanizing (H.D.G) to ensure optimal corrosion resistance and extended service life, even in harsh environments.
Versatility
Available in both full-threaded and half-threaded designs, these bolts offer flexibility for various fastening needs.
Compliance with International Standards
All our bolts adhere to ISO9001:2015, GB/T19001-2000, and ISO9001:2008 certifications, ensuring consistent quality and performance.
Material Selection
We carefully select premium carbon steel to ensure the bolts meet required strength and durability standards.
Precision Forging
Using advanced machinery, the bolt heads are forged to precise hexagonal shapes, ensuring accurate dimensions and compatibility.
Thread Rolling
Threads are rolled (not cut) for superior strength and a smooth finish, reducing stress points.
Finishing Options
Bolts are coated with zinc plating, black oxide, or H.D.G for corrosion resistance, based on customer specifications.
Rigorous Quality Control
Each batch undergoes stringent testing for dimensions, tensile strength, and coating adhesion, ensuring adherence to ASTM standards.
Feature | A325M Bolts | A490M Bolts |
Material | Medium Carbon Steel | Alloy Steel |
Strength | Lower tensile strength | Higher tensile strength |
Finish Options | Zinc Plated, Galvanized | Plain, Black Oxide |
Applications | Moderate load applications | High-stress applications |
FAQ
What is the difference between a standard hex bolt and a heavy hex bolt?
The heavy hex bolt features a larger and thicker head than a standard hex bolt, providing greater strength and better distribution of load in high-stress environments.
Can I get custom sizes and finishes?
Yes, we provide customized heavy hex bolts tailored to your size, material, and finish requirements. Contact us with your specifications for a personalized solution.
What certifications do your heavy hex bolts have?
All our bolts comply with ISO9001 standards and ASTM specifications, ensuring premium quality and performance.
Contact Us for Reliable Heavy Hex Bolts
We're here to support your project with top-quality ASTM A325M/A490M heavy hex bolts, competitive pricing, and reliable service. Whether you need bulk orders, custom finishes, or technical advice, we've got you covered.
Reach out to Topbolt Metalworks today:
Sales Office: ROOM1-3, No.34 Building 5, Eastern Business Centre, Jiangdong District, Ningbo, China
Factory Location: Yuyan, Xiepu Chemical Industrial Zone, Zhenhai District, Ningbo, China
Tel: +86-574-86595122
Fax: +86-574-86657066
Email: sales2@topboltmfg.com
Let us be your trusted fastener manufacturer and supplier for all your heavy-duty applications.