Sumit Impex is a prominent manufacturer, supplier, and exporter of Duplex and Super Duplex Nuts in India. Our diverse range includes material grades, types, forms, and specifications for various industrial needs. From standard sizes to custom dimensions, we provide high-quality products tailored to our client’s requirements, upholding our reputation for reliability and excellence in the industry.
Sumit Impex is a Supplier of Duplex Steel Nuts, Biggest Stockist of Super Duplex Steel Nuts as per Standards in Mumbai, India.
Duplex Steel Dome Nuts, DSS Nuts, Super Duplex Steel Nylon Insert Nuts, Duplex Hex Head Nuts, SDSS Hex Nuts, Super Duplex Eye Nuts, Duplex Steel Heavy Hex Nuts, Duplex Steel & Super Duplex Steel Nuts Manufacturer.
Duplex and Super Duplex nuts offer exceptional corrosion resistance, making them ideal for harsh environments such as offshore oil rigs, chemical processing plants, and marine applications. Their durability ensures long-term reliability in demanding conditions, while their excellent weldability facilitates efficient installation and maintenance. These properties make them indispensable in industries where corrosion resistance, durability, and weldability are paramount.
At Sumit Impex, we implement rigorous testing protocols to ensure the reliability and performance of our products. Our testing covers crucial parameters such as hardness and chemical composition, among others, guaranteeing the highest quality standards. Our comprehensive documentation, including invoices, packing lists and legally recognized Certificates of Origin, streamlines transactions and enhanced transparency. Additionally, we offer third-party inspection certificates to reinforce our commitment to excellence and client satisfaction.

Duplex & Super Duplex Steel Nuts Specifications
Specifications | ASTM A479, A193 & ASME SA479, SA193 |
Nut (DIA) |
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Nuts International Standard | IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI |
Threads | BSF, UNF METRIC, UNC, UNEF, BSW or as required |
ASME/ ANSI – American Standard |
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DIN German Standard | DIN 933, DIN 931, DIN 970, DIN 934 |
ISO Standard | ISO 4033, : ISO 4032, JIS standards |
Head Drive style | Phillips/ Slot, Phillips, Oval, Flat 82 degree, Pan, flat undercut, Round, Truss, flat head 100 degree, binding, fillister head, indented hex head, Slotted, Six-Lobe |
MTC (Manufacturer Test Certificate) | EN 10204 / 3.1 |
Finishing |
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Production Process |
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Nuts Coating |
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Packing | Wooden Pallet, Canton, Carton / Small Box or as required |
Duplex & Super Duplex Steel Nuts Types
Heavy Hex Nuts
Heavy Hex Nuts
Square Nuts
Square Nuts
Wing Nuts
Wing Nuts
Coupling Nuts
Coupling Nuts
Acorn Nuts
Acorn Nuts
Panel Nuts
Panel Nuts
Nyloc Nuts
Nyloc Nuts
Self Locking Nuts
Self Locking Nuts
Contact Us For Quatation & Questions Related To Duplex & Super Duplex Steel Nuts
Duplex & Super Duplex Steel Nuts Applications
Export & Supply Destinations Of Duplex & Super Duplex Steel Nuts
Lebanon, Philippines, Nepal, Mongolia, Kuwait, Russia, Myanmar, British, Saudi Arabia, Turkey, Israel, India, Bahrain, China, Japan, Maldives, Kyrgyzstan, Macau, United Arab Emirates, Egypt, Azerbaijan, Bangladesh, Taiwan, Jordan, Iraq, Afghanistan, Hong Kong, South Korea, Vietnam, Oman, Indonesia, Bhutan, Qatar, Iran, Armenia, Sri Lanka, North Korea, Thailand, Singapore, Malaysia.
Greece, Slovakia, Bulgaria, Malta, Netherlands, Finland, Lithuania, Hungary, Portugal, Germany, Poland, Switzerland, Luxembourg, Croatia, Belarus, Liechtenstein, Serbia, Romania, Belgium, France, Czechia/Czech Republic, Moldova, Estonia, Sweden, Cyprus, Latvia, Russia, Ireland, Austria, Azerbaijan, Spain, United Kingdom, Monaco, Denmark, Turkey, Ukraine, Norway, Italy.
Burkina Faso, Morocco, Madagascar, Egypt, Eswatini, Rwanda, Gambia, Mauritania, Tunisia, Namibia, Seychelles, Mozambique, Niger, Liberia, Zimbabwe, Central African Republic, Zambia, Kenya, Angola, Burundi, Cameroon, South Africa, Tanzania, Ethiopia, Senegal, Libya, Nigeria, Botswana, Uganda, Algeria, Mauritius.
Panama, Canada, Trinidad and Tobago, Saint Vincent and the Grenadines, Barbados, Nicaragua, Guatemala, Bahamas, Honduras, Saint Lucia, Mexico, Dominican Republic, Jamaica, Grenada, Cuba, United States of America, Dominica, Antigua and Barbuda, Belize, Costa Rica, Haiti, El Salvador.
Chile, Suriname, Venezuela, Colombia, Argentina, Paraguay, Peru, Brazil, Ecuador, Bolivia, Guyana, Uruguay.