Carbon Steel Nuts are very common mechanical fasteners that are mainly made out of iron and carbon which is a brilliant combination of strength, machinability and cost efficiency. These fasteners, also known as carbon nuts or mild steel nuts in general engineering practice, are made by a combination of controlled cold forming, forging and heat treatment to ensure reliable mechanical service.
Carbon steel nuts are widely used in construction structures, assembly of machinery, bridges, industrial machinery, pipelines, and other major infrastructure development in terms of their ability to hold much load and their precision in size. They are favored by the fact that they can be produced in large quantities and maintain a reliable quality producing mild steel nuts as a fastening choice to the project needing a quality and cost-effective performance.
Although carbon steel nuts do not have specific corrosion resistance, appropriate surface coatings including zinc plating, black oxide, or hot-dip galvanizing have a great impact on the service life of carbon nuts in open or outdoor applications.
Key Characteristics of Carbon Nuts
- High Strength & Hardness: Suitable for tensile and shear load applications
- Cost-Effective Fastening Solution: Ideal for large-scale projects
- Excellent Machinability: Enables precision threading and mass production
- Wide Availability: Compatible with multiple international standards

Carbon Steel Nuts Manufacturer & Supplier in India
Jade Alloys is a trusted Carbon Steel Nuts manufacturer and supplier in India, serving domestic and global markets. We manufacture high-quality carbon nuts or mild steel nuts using certified raw materials and precision-controlled processes to ensure uniform strength, accurate threading, and consistent dimensional tolerances.
Our carbon steel nuts are widely supplied to construction contractors, OEMs, fabrication units, infrastructure developers, and industrial maintenance companies. With scalable production capacity, Jade Alloys supports both standard stock supply and custom-manufactured mild steel nuts as per drawings or project-specific requirements.
Looking to buy Carbon Steel Fasteners?
Check Stainless Steel Nuts & Alloy Steel Nuts Price List in India
Nuts Weight Chart
Types of Carbon Steel Nuts
Jade Alloys manufactures and supplies a comprehensive range of carbon steel nuts, including:
Carbon Steel Nut Grades
We offer carbon steel nuts in multiple grades to suit different load and service conditions:
Each grade of mild steel nuts is selected based on tensile strength, hardness, and application environment.
Carbon Steel Nuts Specification
| Parameter | Details |
|---|---|
| Standards | ASTM A563, ASTM A194, IS 1363, DIN 934, ISO 4032 |
| Nut Size Range | M3 – M64 | 3/8” – 2½” | Custom sizes available |
| Thread Type | Metric, UNC, UNF, BSW |
| Heat Treatment | Annealed, Stress Relieved, Quenched & Tempered (as applicable) |
| Surface Finish | Plain / Black / Zinc Plated / Hot Dip Galvanized |
| Nut Types | Hex, Heavy Hex, Lock, Nylock, Square, Flange, Weld Nuts |
The carbon content plays a key role in defining hardness and strength, making carbon steel nuts suitable for structural fastening under static and moderate dynamic loads.
Manufacturing Process of Carbon Steel Nuts
The manufacturing process of carbon steel nuts at Jade Alloys includes:
- Raw material inspection
- Cold or hot forging
- Precision threading
- Heat treatment (if required)
- Surface finishing
- Mechanical & dimensional testing
Each batch of carbon nuts undergoes chemical analysis, hardness testing, and visual inspection to ensure full compliance with international standards.
Applications of Carbon Steel Nuts
Carbon steel nuts are commonly used in:
- Construction & Infrastructure Projects
- Bridges & Structural Steel Fabrication
- Industrial Machinery
- Power Transmission Equipment
- Automotive Assemblies
- General Engineering Applications
They are especially suitable for indoor or controlled environments or where protective coatings are applied.
Why Choose Jade Alloys for Carbon Steel Nuts
- Certified raw materials
- Consistent mechanical properties
- Custom sizes & bulk supply
- Export-ready packaging
- Competitive pricing & reliable delivery
Call us for the latest Carbon Steel Nuts price, bulk inquiries, or technical assistance.










