DotsFasteners is a trusted and leading Fastener's Manufacturer in India, renowned for delivering premium-quality fasteners that adhere to international and domestic industry standards. We offer a comprehensive range in multiple sizes, materials, and grades to cater to the varying requirements of industrial, construction, and infrastructure sectors.
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🔩 Carbon Steel Fasteners Manufacturer, Supplier & Exporter in India
DotsFasteners is a trusted Carbon Steel Fasteners Manufacturer in India, offering a wide range of bolts, screws, nuts, washers, studs, and threaded rods. We deliver fasteners made from high-grade low, medium, and high carbon steel, crafted to meet international standards in strength, durability, and corrosion resistance.
With advanced infrastructure and skilled expertise, our carbon steel fasteners are engineered to perform under high pressure, elevated temperatures, and abrasive conditions, making them ideal for critical industrial applications across sectors.
✅ What Are Carbon Steel Fasteners?
Carbon Steel Fasteners are made using carbon steel alloys classified into:
- 🔹 Low Carbon Steel – Easy to machine and weld, cost-effective.
- 🔹 Medium Carbon Steel – Improved strength and hardness.
- 🔹 High Carbon Steel – Superior wear resistance and tensile strength.
These fasteners offer:
- 🔧 Excellent machinability and forgability
- 💪 High abrasion resistance
- 🌡️ Stability in high-temperature and stagnant pressure environments
- 🛡️ Resistance to corrosive atmospheres (with coatings or plating)
🧰 Applications of Carbon Steel Fasteners
- 🏗️ Construction & Infrastructure
- ⚙️ Automotive & Engineering
- 🛢️ Oil & Gas Refineries
- 🔌 Power Plants & Energy Systems
- ✈️ Aerospace Components
- 🧪 Chemical & Petrochemical Plants
- 🚢 Marine Hardware
📦 Packaging & Delivery
- Packaging: Custom wooden boxes, cartons, or pallets with protective wrapping
- Dispatch Ports: Mumbai & Kalamboli, Maharashtra
- GST: 18% Applicable
- Payment Terms: LC, TT, Cheque, NEFT, RTGS
- Certifications: Manufacturer’s Test Certificate per EN 10204 / 3.1
🧪 Mechanical Properties – ISO 898-1 Bolting
| Grade | Material | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HRC) |
|---|---|---|---|---|
| 4.6 | Low/Medium Carbon Steel | 400 | 240 | B67 – B99.5 |
| 8.8 | Medium Carbon Steel (Q+T) | 800–830 | 640–660 | C22 – C34 |
| 10.9 | Alloy Steel (Q+T) | 1040 | 940 | C32 – C39 |
| 12.9 | Alloy Steel (Q+T) | 1220 | 1100 | C39 – C44 |
🧪 Chemical Composition (BS 970:1955 Standard)
| Grade | C% | Si% | Mn% | Ni% | Cr% | Mo% | S% | P% |
|---|---|---|---|---|---|---|---|---|
| EN3B | 0.25 | 0.35 | 1.00 | – | – | – | 0.06 | 0.06 |
| EN8 | 0.35–0.45 | 0.05–0.35 | 0.60–1.00 | – | – | – | 0.06 | 0.06 |
| EN19 | 0.35–0.45 | 0.10–0.35 | 0.50–0.80 | – | 0.90–1.50 | 0.20–0.40 | 0.05 | 0.05 |
🔩 Size & Standards Chart
⚙️ Carbon Steel Screws
| Type | Size Range | Grade | Standard |
|---|---|---|---|
| Socket Head Cap Screws | M1.6 – M64 | 12.9 | ASTM A574M, ISO 4762 |
| Countersunk Socket Head Screws | M3 – M20 | 12.9 | ASTM F835M, ISO 10642 |
| Button Head Socket Screws | M3 – M12 | 12.9 | ISO 7380 |
| Set Screws (Cone, Dog, Cup, Flat) | M3 – M20 | 45H | DIN 916, 915, 914, 913, 4026–4029 |
🔧 Carbon Steel Bolts
| Type | Size | Class | Tensile Strength | Standard |
|---|---|---|---|---|
| Hex Head Bolts / Screws | M4 – M80 | 10.9 | 1040 MPa | ISO 4014 (Half) / 4017 (Full) |
🔩 Carbon Steel Nuts
| Type | Size | Class | Standard |
|---|---|---|---|
| Hex Nut | M6 – M42 | 10 | ISO 4032 |
| Nylock Nut | M6 – M24 | 8, 10 | DIN 982, 985 |
| Weld Nut | M6 – M12 | 8 | DIN 929 |
🧷 Carbon Steel Washers
| Type | Size | Hardness | Standard |
|---|---|---|---|
| Square Spring Washer | 3mm – 39mm | HV 430–530 | DIN 7980 |
| Flat Spring Washer | 3mm – 39mm | HV 430–530 | DIN 127 B |
| Hardened Washer | 12mm – 56mm | Rockwell 26–45 (HDG/Coated) | ASTM F436M |
🌐 Global Reach – Exporting to 75+ Countries
We proudly serve clients across:
🇺🇸 USA | 🇬🇧 UK | 🇦🇪 UAE | 🇩🇪 Germany | 🇸🇬 Singapore | 🇮🇳 India | 🇯🇵 Japan | 🇨🇦 Canada | 🇹🇷 Turkey | 🇿🇦 South Africa | 🇲🇾 Malaysia | 🇦🇺 Australia | 🇳🇿 New Zealand | and many more.
Contact Form
Contact Us
India
- Gat No. 358, Kharabwadi, WMDC, Behind BSNL tower, Ambethan road , Chakan -410501, Pune, Maharastra, India.
- 02135298002
- 9226549001/03
- marketing@dotsfasteners.com
- www.dotsfasteners.com