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Duplex Steel Bolts Supplier

Duplex steel bolts are fasteners made from a type of stainless steel that contains a mix of austenitic and ferritic phases. The dual-phase structure gives them superior strength and corrosion resistance compared to traditional stainless steel fasteners. The two-phase structure also enhances its resistance to stress corrosion cracking and pitting.

Duplex Stainless Steel Bolts have several remarkable features that make them ideal for heavy-duty applications. Their high strength and toughness, derived from the austenitic phase, allow them to withstand extreme loads and vibrations. ASME SA276 Duplex Steel Bolts also exhibit excellent flexibility, which means they can deform without fracturing under stress. Conversely, the ferritic phase provides them with excellent corrosion resistance, making them suitable for use in harsh environments. At Neelkamal Alloys LLP, we offer a variety of high-quality Duplex Stainless Steel Products, including Duplex Steel S31803 Bolts, Duplex Steel S32205 Bolts and more.

The primary benefit of using Duplex Steel Bolts is their superior corrosion resistance. They can withstand various corrosive environments, such as seawater, acid solutions, and chlorides. DSS Bolts are also resistant to crevice and erosion-corrosion, which can cause traditional stainless steel fasteners to fail. Duplex steel bolts have high yield strength, which means they can withstand higher stress levels than other fasteners, making them perfect for heavy-duty applications.

DSS Bolts are widely used in industries that require high-performance fasteners. They are commonly used in marine and offshore applications, where they must withstand exposure to saltwater and harsh weather conditions. ASTM A276 Duplex Steel Bolts are also utilized in chemical and petrochemical industries, where they must resist corrosive chemicals and high temperatures. Other duplex steel bolts include structural applications, such as bridges and buildings, and in the oil and gas industry, where they must withstand extreme pressure and temperature conditions. We offer a wide range of products, including Nickel Alloy Stud Bolts, Incoloy 925 Fasteners, & many more.

How to Choose the Right Duplex Steel Bolt

When choosing duplex steel bolts, it is important to consider the specific application requirements. Factors to consider include the size and shape of the bolt, the grade and alloy of the bolt, and the type of coating or plating required. Ensuring that the bolt complies with industry standards and regulations is also important.

DSS Nuts are becoming increasingly popular due to their remarkable features and benefits. They offer superior corrosion resistance, high strength and toughness, and flexibility. ASME B18.5 Duplex Steel Bolts are utilized in various industries and applications, such as marine and offshore, chemical and petrochemical, and structural engineering.

Specification For Duplex Steel Bolts

Specification ASTM A276/ ASME SA276
Bolts Size Range Metric Range from M1.0 to M100 and Imperial Range from 1/16 inch to 4 inch.
Bolts Types Cold Forging Bolts, Hot Forged Bolts, C-Machined Hex Head Bolts, CNC Machined Hex Head Bolts, Custom Machined Hex Head Bolts, Threaded Hex Head Bolts, Non-Threaded Hex Head Bolts, Bar Stock Machined Hex Head Bolts.
Threads METRIC, BSW, UNC, UNF, BSF or as required
Bolt Specification ANSI B18.2.1, ANSI B18.2.3.1M, DIN 931, DIN 933, BS 1768, UNI 5731, UNI 5737, UNI 5739, ISO 4014, ISO 4017, BS 1769, BS 3692,
Unified Thread Standard (UTS) UNC, UNF, NPT, UNS, UNEF, NPTF
Bolts Surface Coating Hot Dipped Galvanized Bolts, Phosphate Coated Bolts, Teflon Coated Bolts, Xylan Coated Bolts, Zinc Coated Bolts, Cadmium Coated Bolts, Electro Zinc plated Bolts, Electro Cadmium Plated Bolts, Ceramic Filled PTFE Coated Bolts, Electroless Nickel Plated Bolts, Zinc Nickel Coated Bolts, Aluminium Coated Bolts, Silver Coated Bolts, Zinc/Nickel by Electrodeposition Bolts, Dacromet Bolts, Geomet Bolts, Others Upon Request
Bolts Packaging Cartoon Box / Wooden Pallet / Wooden Box / Thread Protector
Duplex Steel Bolts

Duplex Steel Hex Bolt Dimension

m10 10.00 9.78 6.63 6.17 17.00 15.73 18.48 17.77
m12 12.00 11.73 7.76 4.24 19.00 17.73 20.78 20.03
m14 14.00 13.73 9.09 8.51 22.00 20.67 24.25 23.35
m16 16.00 15.73 10.32 9.68 24.00 23.67 27.71 26.75
m20 20.00 19.67 12.88 12.12 30.00 29.16 34.64 32.95
m24 24.00 23.67 15.44 14.56 36.00 35.00 41.57 39.55
m30 30.00 29.67 19.48 17.92 46.00 45.00 53.12 50.85
m36 36.00 35.61 23.38 21.63 55.00 53.80 63.51 60.79
m42 42.00 41.38 26.97 25.03 65.00 62.90 75.06 71.71
m48 48.00 47.38 31.07 28.93 75.00 72.60 86.60 82.76
m56 56.00 55.26 36.2 33.80 85.00 82.20 98.15 93.71
m64 64.00 63.26 41.32 38.68 95.00 91.80 109.70 104.65
m72 72.00 71.26 46.45 43.55 105.00 101.40 121.24 115.60
m80 80.00 79.26 51.58 48.42 115.00 111.00 132.72 126.54
m90 90.00 89.13 57.74 54.26 130.00 125.50 150.11 143.07
m100 90.00 99.13 63.9 60.10 145.00 140.00 167.43 159.60

Various Types of Duplex Steel Bolts

Hex Bolts

Duplex Steel Hex Bolts

  • DSS Hex Bolts
  • Duplex Hex Bolts 
  • DSS Hex Bolts 
  • DSS Heavy Hex Bolts
  • ASTM A276 Duplex Steel Hex Bolts
  • Duplex Steel Hex Head Bolts 
  • Duplex Steel Hex Bolts
  • Duplex Steel Hex Head Bolts
  • Duplex Steel Hex Bolts Manufacturer in Mumbai
  • Duplex Steel Hex Bolts Supplier in Mumbai
  • Duplex Steel Hex Bolt
  • Duplex Steel Heavy Hex Bolts
  • Duplex stainless Steel Heavy Hex Bolts
  • Duplex Heavy Hex Bolts
  • ASME SA276 Duplex Steel Heavy Hex Bolts
Square Bolts

Duplex Steel Square Bolts

  • Duplex Steel Square Bolts
  • Duplex Steel Square Head Bolts 
  • Duplex Square Bolts 
  • Duplex Steel Square Bolt
  • Duplex Steel Square Bolts in India
  • DSS Square Bolts
  • Duplex stainless Steel Square Bolts
  • Duplex Square Bolts
  • DSS Square Bolt
  • Duplex Steel Square Head Bolts
machine bolts

Duplex Steel Machine Bolts

  • Duplex Machine Bolts
  • DSS Machine Bolt
  • Duplex Steel Machine Bolts 
U Bolts

Duplex Steel U Bolts

  • Duplex Steel U Bolts 
  • Duplex U Bolts in Mumbai
  • Duplex Steel U Bolts
  • DSS U Bolts
J Bolts

Duplex Steel J Bolts

  • Duplex Steel J Bolts 
  • Duplex Steel J Bolts
  • Duplex Steel J Bolts Supplier
  • DSS J Bolts
  • Duplex stainless Steel J Bolts
  • Duplex J Bolts
flange bolts

Duplex Steel Flange Bolts

  • DSS Flange Bolt
  • Duplex Steel Flange Bolt
  • DSS Hex Flange Bolts
  • Duplex Flange Bolts
  • Duplex Steel Hex Flange Bolts 
  • Duplex Steel Flange Bolts 


If you require any further information, Please do not hesitate to contact us.

Ready Stock Of Duplex Steel Bolts

  • Duplex Steel Bolts 
  • DSS Bolts
  • Duplex Steel Hanger Bolts
  • Austenitic Duplex Steel Bolts 
  • Duplex Steel Eye Bolts
  • DSS Bolts 
  • Duplex Steel Hex Bolts 
  • Duplex Steel Bolts  
  • Duplex Carriage Bolts 
  • Duplex Steel Machine Bolts
  • DSS Allen Bolts
  • Duplex Steel Bolts Dimensions
  • Duplex Steel Bolts
  • DSS Round Head Bolts
  • Duplex Steel Shoulder Bolts
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  • Duplex Steel Industrial Bolts Application
  • Grade Metric Duplex Steel Bolts
  • Duplex Steel Draw Bolts Weight Chart
  • Large Range of Duplex Steel Bolts
  • Duplex Heavy Duty Toggle Bolts 
  • Duplex Steel Toggle Bolts
  • Duplex Steel Slotted Hex Head Bolts
  • Duplex Steel Penta-Head Bolts 
  • Duplex Half Thread Bolts
  • DSS Elevator Bolts
  • DSS Bolts Supplier
  • Duplex Steel Bolts 
  • Duplex Steel Full Thread Hex Head Bolts 
  • Duplex Steel Metric Hex Bolts 
  • Check Duplex Steel Bolts Sizes
  • Austenitic Duplex Steel Bolts
  • DSS Bolts Manufacturer 
  • Duplex Stainless Steel Heavy Hex Bolts 
  • Duplex Steel Slotted Bolts Standard
Oil and Gas Industry
Power Generation Industry
Chemical Industry
Food Processing Industry

We Serve Application Industry

Countries We Export To

Mongolia, Nigeria, Ghana, Venezuela, Indonesia, Nepal, Yemen, Israel, Tibet, Mexico, Brazil, Iran, Switzerland, Argentina, Czech Republic, Belgium, Croatia, Singapore, Gambia, Qatar, Zimbabwe, Tunisia, Bhutan, Norway, Morocco, Vietnam, Philippines, Iraq, South Korea, Slovakia, China, Germany, Bangladesh, Algeria, Ukraine, Greece, Turkey, Hungary, Sweden, Pakistan, Denmark, Macau, Australia, Sri Lanka, Saudi Arabia, Lebanon, Afghanistan, Egypt, Chile, Puerto Rico, Iran, United States, Ecuador, Poland, Malaysia, Costa Rica, Azerbaijan, Nigeria, Serbia, Kazakhstan, Portugal, Oman, New Zealand, Austria, Netherlands, Hong Kong, Bulgaria, Kuwait, Estonia, United Kingdom, Kenya, Italy, Canada, Gabon, Colombia, Poland, Chile, Finland, United Arab Emirates, Romania, Namibia, Belarus, Trinidad & Tobago, Libya, Jordan, Angola, Taiwan, Bolivia, France, Japan, Russia, Peru, Mexico, Ireland, South Africa, Thailand, Spain, Lithuania, India, Bahrain.

Cities We Supply

Visakhapatnam, Mumbai, Sydney, Gurgaon, Bogota, Vung Tau, Navi Mumbai, Atyrau, Chiyoda, Busan, Bangkok, Ankara, Ranchi, Chandigarh, Dallas, Jeddah, Faridabad, Aberdeen, Indore, Moscow, New Delhi, Karachi, Vadodara, Ho Chi Minh City, Brisbane, Hong Kong, Geoje-si, Baroda, Petaling Jaya, Edmonton, Ernakulam, Al Jubail, Port-of-Spain, Courbevoie, Riyadh, Bengaluru, Jamshedpur, London, Gimhae-si, Nagpur, Istanbul, Ludhiana, Perth, Houston, Coimbatore, Haryana, Singapore, Montreal, Algiers, Granada, Rajkot, Al Khobar, Manama, Milan, Toronto, Pimpri-Chinchwad, Surat, Noida, Jakarta, Melbourne, Cairo, Los Angeles, Colombo, Ulsan, Nashik, Lahore, Rio de Janeiro, Calgary, Ahmedabad, Sharjah, Thiruvananthapuram, Jaipur, Secunderabad, Santiago, Kolkata, Caracas, New York, Kuwait City, Ahvaz, Seoul, Tehran, Hanoi, Doha, Muscat, Pune, Madrid, Hyderabad, Mexico City, Thane, Bhopal, Abu Dhabi, Kuala Lumpur, Kanpur, Lagos, Dammam, Dubai, Howrah, La Victoria, Chennai.