Carbon Steel Bolts are the primary choice for structural and general-purpose fastening where high strength is required without the premium cost of exotic alloys. By varying the carbon content—categorized as low (mild steel), medium, or high—the physical properties of these bolts can be adjusted to balance hardness, ductility, and tensile strength.
Unlike stainless steel, which relies on chromium for protection, carbon steel is valued for its raw mechanical performance. In its basic form, it is naturally harder and easier to machine than many alloy steels. While it is susceptible to oxidation, the application of industrial coatings like Hot Dip Galvanizing or Zinc Plating makes Carbon Steel Bolting extremely durable for construction, automotive, and heavy machinery.
At Jade Alloys, we manufacture these bolts to handle high-stress loads in everything from simple frames to complex bridge infrastructures. Whether you need the ductility of Mild Steel Bolts for secondary supports or the high-tensile strength of heat-treated grades for structural steel fabrication, our products meet the exact chemical and mechanical requirements of your project.
Carbon Steel Bolts Manufacturers & Supplier in India
As specialized Carbon Steel Bolts Manufacturers, Jade Alloys provides a reliable supply chain for high-volume industrial projects. We produce a wide spectrum of fasteners, ranging from Grade 4.8 for general assembly to Grade 8.8 and 10.9 for high-load applications.
Our facility in India utilizes both cold forging for standard fasteners and hot forging for large-diameter bolts up to M100. Every batch is tested for yield strength and thread accuracy, ensuring that our clients in the Middle East, Europe, and Southeast Asia receive fasteners that are ready for immediate installation.
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Types of Carbon Steel Bolts
We manufacture a diverse range of head styles and lengths to suit various structural and mechanical fastening needs.
Carbon Steel Bolts Grades
We supply carbon steel bolts in commonly used ASTM grades, including:
These grades are selected based on tensile strength, load requirements, and intended application.
Carbon Steel Bolts Standards
We ensure all Carbon Steel Bolting follows recognized global frameworks to guarantee safety and complete interchangeability in international projects.
Carbon Steel Bolts Specification
| Standard | Specification |
|---|---|
|
Size Range |
M6 to M100 |
|
Threads |
Metric, UNC, UNF, BSW |
|
Heat Treatment |
As Rolled, Annealed, or Quenched & Tempered |
|
Surface Finish |
Black Oxide, Zinc Plated, Hot Dip Galvanized |
|
Testing |
Tensile Strength, Hardness, Dimensional Inspection |
Manufacturing Process of Carbon Steel Bolts
Our production method focuses on structural integrity, ensuring that Mild Steel Bolts and high-carbon variants achieve maximum fatigue resistance.
- Sourcing & Heading: Steel wire or rod is cut and “headed” through cold or hot forging.
- Threading: Threads are either cut or rolled; rolled threads are preferred for higher fatigue resistance.
- Heat Treatment: Bolts are heated and quenched in oil or water to “lock in” mechanical strength.
- Finish: Application of protective coatings to prevent rust and improve appearance.
Applications of Carbon Steel Bolts
- Structural: Steel buildings, warehouses, and stadiums.
- Civil Engineering: Bridges, flyovers, and rail infrastructure.
- Automotive: Engine mounts, frames, and wheel assemblies.
- Manufacturing: General machinery and equipment assembly.
Why Choose Jade Alloys for Carbon Steel Bolts
We focus on consistency. When you order bulk Carbon Steel Bolting, you need every bolt to match the first.
- Certified Quality: Every shipment comes with a Material Test Certificate (MTC).
- Stock Availability: Massive inventory of standard sizes for immediate dispatch.
- Coating Precision: Uniform galvanizing thickness for trouble-free nut fitment.
Frequently Asked Questions About Carbon Steel Bolts
Are carbon steel bolts strong?
Yes. In its basic form, carbon steel is naturally hard. It can be manufactured to various strength levels (Grades) without the expensive alloying elements found in other steels, making it the most cost-effective “high strength” material.
What are the differences between carbon steel and stainless steel bolts?
Carbon steel is chosen for its superior strength-to-cost ratio and hardness, but it requires a coating to prevent rust. Stainless steel contains chromium for built-in corrosion resistance but is generally more expensive and less hard than high-carbon bolts.
Do mild steel bolts rust?
Yes, mild steel will oxidize if exposed to moisture. This is why we recommend Zinc Plating or Hot Dip Galvanizing for any bolts used in outdoor or humid environments.
