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.
🔩 Super Duplex Fasteners Manufacturer, Supplier & Exporter in India
DotsFasteners is a prominent Super Duplex Fasteners Manufacturer in Mumbai, India. We manufacture and export a wide range of Super Duplex Steel Fasteners including UNS S32750 (Super Duplex 2507) and UNS S32760, which offer superior mechanical strength and excellent corrosion resistance even in harsh chemical and marine environments.
Our products are widely used across industries such as oil & gas, petrochemical, chemical processing, marine, construction, and automotive for their unmatched durability and precision.
✅ Why Choose Super Duplex Fasteners?
Super Duplex Stainless Steel combines the best properties of austenitic and ferritic steel. These fasteners offer:
- High mechanical strength
- Outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking
- Excellent weldability and formability
- Proven performance in chloride-rich environments
We are a top-quality Super Duplex Bolt, Nut, Washer, and Screw Manufacturer providing both standard and customized solutions for global industries.
🧩 Super Duplex Fasteners Product Range
- Bolts – Hex Bolts, Eye Bolts, U-Bolts, Stud Bolts, Anchor Bolts
- Nuts – Hex Nuts, Lock Nuts, Dome Nuts, Coupling Nuts
- Screws – Machine Screws, Socket Cap Screws, Self-tapping Screws
- Washers – Flat, Spring, Lock, Sealing, and Special Washers
- Other Fasteners – Threaded Rods, Socket Screws, Carriage Bolts, Cotter Pins
Threading Options: UNC, UNF, Metric, BSW, BSF
Coatings Available: PTFE, Zinc, Black Oxide, Hot-Dip Galvanized, Customized Finishes
📐 Specifications of Super Duplex Fasteners
| Parameter | Details |
|---|---|
| Grades | UNS S32750, S32760 (Super Duplex 2507) |
| Specifications | ASTM / ASME F53, A479 / SA479, DIN, BS, IS, and more |
| Size Range | M3 to M56 / 3/6″ to 2″ / Custom Sizes Available |
| Length | 3 mm to 200 mm |
| Standards | DIN, ASTM, BS, IS, ANSI, and all major International Standards |
| Material Origin | Reputed mills like Tata, Mukund Steel, RINL, JSPL, etc. |
🧪 Super Duplex Fasteners – Chemical Composition
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 5.0 |
| Manganese (Mn) | ≤ 1.20 |
| Silicon (Si) | ≤ 0.80 |
| Copper (Cu) | ≤ 0.50 |
| Nitrogen (N) | 0.24 – 0.32 |
| Phosphorous (P) | ≤ 0.035 |
| Carbon (C) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.020 |
| Iron (Fe) | Balance |
🏭 Industries & Applications
Super Duplex Fasteners are trusted in critical applications such as:
- 🛢️ Oil & Gas Platforms
- ⚗️ Petrochemical Plants
- ⚓ Marine and Shipbuilding
- 🧪 Chemical Processing
- 🏗️ Infrastructure and Construction
- 🚀 Aerospace & Defense
- 🚘 Automotive and Heavy Engineering
🌍 Super Duplex Fasteners – Global Presence
📦 Packaging & Delivery
- Packaging: Wooden pallets, small boxes, customized as per client requirements
- Ports: Mumbai, Kalamboli (Maharashtra, India)
- Payment Modes: LC, TT, Cheque
- Tax: 18% GST for domestic sales
🌐 Global Export Network
🇮🇳 Cities in India:
Mumbai | Pune | Chennai | Delhi | Coimbatore | Ahmedabad | Kolkata | Hyderabad | Vadodara | Nagpur | Rajkot | Surat | Jaipur | Bhopal | Noida | Jamshedpur | Ernakulam | Bhilai | and more
🌎 Countries We Export To:
UAE | Saudi Arabia | Qatar | Oman | Kuwait | USA | UK | Canada | Australia | Germany | France | Mexico | South Africa | Nigeria | Singapore | Malaysia | Sri Lanka | Japan | Poland | Brazil | Belgium | Iran | Turkey | New Zealand | Czech Republic | Philippines | Egypt | 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