| Size | 5 |
|---|---|
| Type | Bolt, Nut, Screw, Washer, Rivet, Threaded Rod, Studs, Coated, Nails, Custom Fasteners |
| Standard | Din, Iso, Jis, Gb, Is, Bs, Astm |
| Length | 10 |
| Material | Stainless Steel, Monel, Inconel, Incoloy, Hastelloy, Nickel, Silicon Bronze, Phosphor Bronze |
Super Duplex fasteners manufactured in India for offshore oil gas chemical processing marine and high strength industrial applications
Sagar Steel Corporation is a reputed Super Duplex Fastener Manufacturer in India, which provides high strength fasteners designed to withstand extreme pressure, corrosive, and chlorides high pressure environments. The super duplex fasteners are made of higher grade stainless steel alloys, which have much higher mechanical strength and better resistance to pitting, crevice corrosion, and stress corrosion cracking than the standard duplex and austenitic stainless steels. The applications of these fasteners are common in offshore, oil and gas, marine, chemical processing, desalination and power generation sectors.
We use our global B2B portal to provide high-accurate manufactured super duplex fasteners to local and foreign clients who want uniform quality, certified products, and good delivery. We offer our products as super duplex bolts, nuts, screws, studs, and washers in different sizes, forms of threads, and surface finishes. All fasteners are subject to stringent quality assurance, such as chemical tests, mechanical tests, and dimensional inspection in the process of ensuring that all meet international standards and project requirements.
Super Duplex Fasteners – Material & Grade Table
| Material | Grade | UNS No. | Standard | Key Properties |
|---|---|---|---|---|
| Super Duplex Stainless Steel | 2507 | S32750 | ASTM A193 / A194 | Very high strength, excellent pitting resistance |
| Super Duplex Stainless Steel | Z100 | S32760 | ASTM A193 / A194 | Superior resistance to chloride stress corrosion |
| Super Duplex Stainless Steel | 1.4410 | EN 10088 | EN | High PREN value, excellent toughness |
| Super Duplex Stainless Steel | F53 | UNS S32750 | ASTM F593 / F594 | High mechanical strength and durability |
Super Duplex Fasteners – Types, Sizes & Availability Table
| Fastener Type | Size Range | Thread Standard | Availability Form | Minimum Quantity |
|---|---|---|---|---|
| Super Duplex Bolts | M6 – M64 | ISO / UNC / UNF | Hex, Heavy Hex | 200 Pcs |
| Super Duplex Nuts | M6 – M64 | ISO / UNC / UNF | Hex, Lock | 200 Pcs |
| Super Duplex Screws | M3 – M36 | ISO / DIN | Socket, CSK, Pan | 200 Pcs |
| Super Duplex Stud Bolts | M8 – M72 | ASTM / ASME | Full Thread / Tap End | 200 Pcs |
| Super Duplex Washers | M6 – M64 | DIN / ISO | Plain, Spring | 200 Pcs |
- Extremely high mechanical strength with regards to normal stainless steel fasteners.
- Well resistant to pitting, crevice corrosion and stress corrosion cracking.
- Excellent performance in salty and marine conditions.
- Fits high-pressure and high temperature conditions.
- High service life with less maintenance needs.
The combination of these characteristics causes super duplex fasteners to become a reliable solution in very tough and corrosion-sensitive industrial fastening systems.
Besides super duplex fasteners we provide Phosphor Bronze Fasteners, Brass Fasteners, and Naval Brass Fasteners so that buyers can find a large variety of corrosion-resistant and specialty fasteners under one trusted supplierType of Sub-products

Super Duplex Hex Bolts Super Duplex Hex Bolts
High strength bolts with a hexagonal head, offering excellent corrosion resistance. Ideal for use in marine, offshore, and chemical processing environments.

Super Duplex Stud Bolts Super Duplex Stud Bolts
Fully threaded rods used with nuts for flange connections. Known for durability and high resistance to extreme pressure and corrosive conditions.
