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Mazin Fasteners is a reliable manufacturer and supplier of high-performance Super Duplex screws in Muscat, Oman, serving demanding industrial sectors. Known for precision manufacturing and strict quality standards, the company offers screws that combine exceptional strength with outstanding corrosion resistance. Each Super Duplex screw is produced to ensure accurate threading, secure fastening, and long-term reliability in harsh environments. With a strong focus on customer satisfaction, timely delivery, and compliance with international specifications, Mazin Fasteners has become a trusted source for fastening solutions used in critical and high-stress applications.
Super Duplex screws supplied by Mazin Fasteners are manufactured from advanced Super Duplex stainless steel containing high levels of chromium, molybdenum, and nitrogen. This balanced composition provides excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Mechanically, these screws offer very high tensile and yield strength, superior toughness, and excellent fatigue resistance. They perform reliably under high pressure and temperature variations, making them suitable for extreme service conditions.
| Standard | DIN, ASTM, BS and all International Standards |
| Specifications | ASTM A479 & ASME SA479 |
| UNS S32760 Nut and Bolts Size | M3 To M56 3/6″ to 2″ |
| Length | 3 to 200 MM |
| Super Duplex Steel 2207 Machine Screws Size | M1.6 To M12 |
| Duplex Steel 2205 Washers Size | M3 To M56 3/6″ to 2″ |
| Tensile Strength(MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) | Hardness Rockwell C (HR C) | |
| Super Duplex Steel Bolts | 760 | 550 | 15 | 32 Max |
| Phosphorus | Sulphur | Silicon | Carbon | Manganese | Nickel | Molybdenum | Nitrogen | Copper | Chromium |
|---|---|---|---|---|---|---|---|---|---|
| 0.035 % max | 0.02 % max | 0.80 % max | 0.03% Max | 1.20 % max | 6.00 – 8.00 % | 3.00 – 5.00 % | 0.24 – 0.32 % | 0.50 % max | 24.0 – 26.0 % |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Super Duplex Steel Screws are used in various high performance areas. In chemical processing they are able to resist the effects of aggressive chemicals and high pressure. In marine applications, they are protected from corrosion by sea water hence giving long service life. In the oil and gas industry, they offer secure fastening where tension is usually high. Also, Super Duplex Steel screws are employed in power generation and construction industries because of their excellent performance in harsh conditions.
Super Duplex screws from Mazin Fasteners are widely used in industries that operate in aggressive and corrosive environments. Common applications include offshore oil and gas platforms, petrochemical plants, desalination units, marine structures, and chemical processing equipment. These screws are also used in heat exchangers, pressure vessels, and pipeline systems where strength and corrosion resistance are critical. Their durability, long service life, and low maintenance requirements make them ideal for ensuring safety and reliability in demanding industrial applications.
Mazin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Muscat, OMAN, with over 8 years of experience serving global industries.
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