Duplex Steel Fasteners Supplier

Duplex Stainless Steel Fasteners

Duplex stainless steel fasteners are highly favored for their superior strength and resistance to corrosion. They are a popular choice for marine, oil and gas, and other corrosive environments requiring high strength. These durable fasteners have a combination of austenite and ferrite in their microstructure, providing them with the best of both worlds – an increased strength level and corrosion resistance. The higher chromium content gives these fasteners more excellent pitting resistance than other grades of stainless steel, providing additional protection against environmental damage. In addition, duplex stainless steel fasteners can tolerate temperature changes better than traditional 304 or 316-grade stainless steels, making them suitable for extreme applications.

ASME SA 479 Duplex Steel Fasteners, Duplex Steel Fasteners, Duplex Steel Industrial Fasteners, ASTM A479 DSS Fastener, Duplex Stainless Steel Fasteners, DSS Fastener Manufacturer In Mumbai, India.

Due to their increased strength, duplex stainless steel fasteners are often used in projects requiring high tensile and yield strength. They are also famous for vibration or shock applications, as they can be tightened to higher torque levels than other grades of stainless steel. Duplex stainless steel fasteners offer an ideal solution for projects requiring the highest level of corrosion resistance and the highest strength-to-weight ratio. They provide an excellent balance between cost, performance, and reliability and should be considered when selecting fasteners for demanding applications.

Additionally, duplex stainless steel fasteners are easy to install and require less maintenance than other metals. This makes them highly efficient for applications in a wide range of industries. With the proper care and maintenance, they can provide long-term performance and reliability. All in all, duplex stainless steel fasteners are an ideal choice for projects that require high strength and corrosion resistance. They offer superior performance, reliability, and durability at competitive prices. If you’re looking for a reliable solution to your fastening needs, consider using duplex stainless steel fasteners!

Duplex Steel Anchor Bolts, Duplex Steel Bolts, Duplex Studs, DSS Hex Nuts, Duplex Steel Nuts, Duplex Steel Threaded Rod, Duplex Stud Bolts, DSS Hex Head Bolt, ASTM A479 Duplex Stainless Steel Fasteners Supplier in India.

Duplex & Super Duplex Steel Fasteners

Furthermore, regarding safety considerations, several factors should be considered while installing duplex stainless steel fasteners. The hardness of the material makes it challenging to drill or cut without causing damage to surfaces or structures nearby; therefore, special tools must be used while installing them. Additionally, high chromium content in duplex stainless steel fasteners can cause serious health issues if inhaled or ingested and should be handled cautiously.

Specification of Duplex Steel Fasteners

  • Specifications: ASTM A479 / ASME SA479
  • Bolt Size: M3 – M56 | 3/6″ to 2″
  • Nuts Size : M3 – M56 | 3/6″ to 2″
  • Washers Size : M3 – M56 | 3/6″ to 2″
  • Machine Screws Size: M1.6 – M12
  • Self Tapping Screw Size: No.2 – No. 14
  • Length: 3 mm to 200 mm
  • Threads: UNF, BSW, BSF, METRIC, UNC or as required
  • Standard : DIN : DIN 934, DIN 931, DIN 970, DIN 933 UTS : UNEF, NPT, UNC, UNS, UNF, NPTF ISO : JIS standards, ISO 4033, ISO 4032, ANSI – American National Standards Institute ASME B18.5 ANSI B 28.2.4 1M as per defined in ASME B16.5 standard SS Stud Bolt length ANSI B 18.2.4 2M as per defined in ASME B18.2.2 SS Hex nuts
  • Dimensions: DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
  • Surface Coating: Ptfe Coated Stainless Steel Fasteners Phosphate Coating Teflon Coating Zinc Coating Hot Dipped Galvanizing Coating Cadmium Coating Xylon Coating

Duplex Steel Fasteners Standard

Hexagon Bolt / Set Screws Stud Bolt Hexagon Nuts Socket Cap screws
DIN 931 BS4882 DIN 934 DIN 912
DIN 933 DIN 976 BS 1768 DIN 6912
BS 1768 BS 1769 DIN 7984
UNI 5731 BS 1083 ANSI B18.3
UNI 5739 BS 3692 ISO 4762
ISO 4014 ISO 4032 UNI 5931
ISO 4017 ISO 4033 BS 2470
BS 1769 ANSI B18.2.2 BS 4168
BS 3692
ANSI B18.2.1
Socket & Slotted Set Screws Socket & Slotted Countersunk Screws Studs Washers
DIN 913 DIN 963 DIN 938 DIN 125
DIN 914 DIN 7991 DIN 939 DIN 9021
DIN 915 BS 4168 DIN 2510 BS 4320
DIN 916 BS 1981 BS 4439 BS 3410
DIN 551 BS 483 BS 2693
DIN 553 BS 2470 Spring Washers
DIN 438 DIN 127
BS 4168 BS 4464
BS 1802

ANSI Standards Duplex Steel Fasteners(inch series)

ASME B18.1.1 Small Solid Rivets ASME B18.8.1 Clevis Pins and Cotter Pins
ASME B18.1.2 Large Rivets ASME B18.8.2 Taper Pins, Dowel Pins, Straight Pins, Grooved Pins and Spring Pins
ASME B18.2.1 Square and Hex Bolts and Screws ASME B18.9 Plow Bolts
ASME B18.2.2 Square and Hex Nuts ASME B18.10 Track Bolts and Nuts
ASME B18.2.6 Fasteners for use in Structural Applications ASME B18.11 Miniature Screws
ASME B18.3 Socket Cap, Shoulder and Set Screws ASME B18.13 Screws and Washer Assemblies (Sems)
ASME B18.5 Round Head Bolts ASME B18.15 Forged Eyebolts
ASME B18.6.2 Slotted Head Cap Screws, Square Head Set Screws, and Slotted Headless Set Screws ASME B18.17 Wing Nuts, Thumb Screws and Wing Screws
ASME B18.6.3 Machine Screws and Machine Screws Nuts ASME B18.21.1 Lock Washers
ASME B18.6.4 Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws ASME B18.22.1 Plain Washers
ASME B18.7 General Purpose Semi- Tubular Rivets, Full Tubular Rivets, Split Rivets and Rivet Caps ASME B18.23.1 Beveled Washers

Available Types of Duplex Steel Fasteners


Duplex Steel Bolts

  • DSS Heavy Hex Bolts
  • ASME SA479 Duplex STAINLESS Steel Carriage Bolts
  • Duplex Steel Machine Bolts
  • Duplex Bolts
  • Duplex Steel U Bolts Supplier
  • Duplex Stainless Steel Hex Bolts Manufacturer
  • ASTM A479 DSS Eye Bolts
  • DSS J Bolts
  • Duplex Stainless Steel Bolt
  • Duplex Steel Foundation Bolts

Duplex Steel Nuts

  • Duplex Stainless Steel Nuts
  • Duplex Stainless Steel Wing Nuts
  • ASME SA479 DSS Dome Nuts
  • DSS Hex Nuts Manufacturer
  • Duplex Steel Heavy Hex Nuts
  • Duplex Nut
  • Duplex Stainless Steel Hex Jam Nuts
  • Duplex Stainless Steel Square Nuts Supplier
  • ASTM A479 Duplex Coupling Nuts
  • DSS Heavy Hex Nuts

Duplex Steel Screws

  • Duplex Stainless Steel Hex Head Screw
  • ASME SA479 SDSS Hex Cap Screws
  • DSS Machine Screw
  • DSS Wood Screw Manufacturer
  • ASTM A479 Duplex Steel Hex Head Cap Screws
  • Duplex Steel Screw
  • DSS Socket Cap Screw
  • Duplex Steel Socket Head Cap Screw
  • Duplex Stainless Steel Self Tapping Screws
  • Duplex Stainless Steel Screws
  • Duplex Steel Allen Cap Screw Supplier

Duplex Steel Washers

  • Duplex Steel Fender Washers Supplier
  • ASTM A479 DSS Dome Washers
  • DSS Square Washers
  • Duplex Stainless Steel Ogee Washer
  • DSS Washers
  • Duplex Steel Washer
  • DSS Plain Washer Manufacturer
  • Duplex Stainless Steel Spring Washers
  • ASME SA479 Duplex Stainless Steel Star Washer
  • Duplex Locking Washer
SS Stud Bolts Manufacturer Suplier

Duplex Steel Stud Bolts

  • Duplex Steel Stud Bolt Manufacturer
  • Duplex Steel Stud Bolts Supplier
  • ASTM A479 Duplex Studs
  • Duplex Stainless Steel Tie Rod
  • Duplex Steel Threaded Rod
  • DSS Half Threaded Stud Bolt
  • ASME SA479 Duplex Stainless Steel Studs
  • Duplex Stainless Steel Double Ended Studs
  • Duplex Steel Tap End Stud Bolt
  • Duplex Stud Bolts
Anchor Bolts

Duplex Steel Anchor Bolts

  • Duplex Steel I Anchor Bolts
  • Duplex Stainless Steel Anchor Bolt
  • DSS J Anchor Boltss
  • ASME SA479 DSS Anchor Bolts
  • Duplex Steel Anchor Bolts
  • Duplex Sleeve Anchor Bolts
  • Duplex Steel Concrete Anchor
  • Duplex Steel Anchor Bolt Manufacturer
  • Duplex Stainless Steel Self Tapping Anchor
  • ASTM A479 DSS Anchor Bolts

Duplex Steel Fasteners of Price List


DescriptionPrice Per Unit (INR)Price in USDPrice in EURO
Duplex Hex Bolt , Nut & Washers Heavy Hex Head Bolt 3/4 Inch X 10 Unc X 4-1/2 Inch Lg. (2inch Thread Length) (Oth82611.229.29
Stainless Steel Duplex hex Head Bolts : M8 X 50 Mm Long (Fullythreaded)1311.781.47
Stainless Steel Duplex hex Head Bolts : M14 X 50 Mm Long (Fully Threaded)3104.213.49
Stainless Steel Duplex hex Head Bolts : M14 X 70 Mm Long (Fully Threaded)3314.503.72
Stainless Steel Duplex hex Head Bolts : M20 X 110 Mm Long (Partially Threaded)6218.436.98

Duplex Steel Fasteners of Weight Chart

Size Finished Hex Heavy Hex Finished Jam Heavy Hex Jam Square Heavy Square
1/2" Nut 3.75 6.54 2.62 4.00 5.78 7.87
5/8" Nut 7.33 11.9 4.93 6.96 10.8 14.3
3/4" Nut 11.9 19.3 7.70 11.0 15.4 23.5
7/8" Nut 19.0 29.7 12.0 16.7 24.5 36.2
1" Nut 28.3 42.5 17.6 23.5 36.3 51.5
11/8" Nut 40.3 59.2 24.7 32.4 52.5 72.4
11/4" Nut 54.3 78.6 36.1 45.8 70.6 95.5
13/8" Nut 73.0 102 47.9 59.3 94.5 125.0
11/2" Nut 94.3 131 60.9 74.8 122 161
15/8" Nut 162 91.6
13/4" Nut 151 204 100 114
17/8" Nut 241 134
2" Nut 224 299 140 165
21/4" Nut 419 227
21/2" Nut 564 332
23/4" Nut 738 429
3" Nut 950 545
31/4" Nut 1194 651
31/2" Nut 1526 851
33/4" Nut 1812 1005
4" Nut 2180 1200

Duplex Steel Fasteners of Tolerances Chart

ASME tolerances
B16.5 studs, hex bolts for class 150/ 300/ 400/ 600/ 900/ 1500 and 2500 flanges from 1/2 to 24 inch size.
B16.47 studs, hex bolts for class 150/ 300/ 400/ 600 /900 flanges from 26 to 60 inch size.
B18.10 oval neck track Nut bolts
B18.15 shoulder pattern and plain forged eye bolts.
B18.16.3M prevailing-torque type metric hex nuts and hex flange nuts.
B18.16.4 serrated hex flange nuts.
B18.16.6 nylon insert hex lock nuts.
B18.2.1 Heavy Hex, Square, Hex, Hex Flange, Askew Head Bolts, Lobed Head Bolts, and Lag Screws.
B18.2.2 Machine Screw Nuts, Square, Hex Flange, Hex, and Coupling Nuts.
B18.2.3.1M M5 to M100 metric hex cap screws
B18.2.3.2M M5 to M24 metric hex cap screws
B18.2.3.3M M12 to M36 metric heavy hex cap screws
B18.2.3.4M M5 to M16 metric hex flange screws
B18.2.3.5M M5 to M100 metric hex bolts
B18.2.3.6M M12 to M36 metric heavy hex bolts

Contact us to get a quick quote for your requirement.

We offer These Duplex Steel Nut, Bolt, Screw, Washer, Stud Bolt & Anchor Bolt as per ASTM, ASME and API.

Other types of Duplex Steel Fasteners Stock

  • Duplex Steel Hex Set Screw
  • Duplex Stainless Steel Carriage Bolt
  • DSS Fasteners Manufacturer
  • Duplex Stainless Steel Bolts
  • DSS Slotted Nuts
  • Duplex Steel Industrial Fasteners
  • DSS Nuts
  • Duplex Steel Flange Bolts
  • Duplex Hex Head Bolts
  • Duplex Steel Machine Fastener
  • Duplex Stainless Steel Machine Bolts
  • Duplex Steel Socket Cap Screw
  • Duplex Steel Flat Washers
  • Duplex Stainless Steel Self Locking Nuts Exporter
  • Duplex Steel Customized Washer Supplier
  • Duplex Steel Wing Nuts
  • Duplex Stainless Steel Structural Bolts
  • Duplex Steel Threaded Rod
  • Duplex Stainless Steel Hex Washer Dealers
  • ASME SA479 Duplex Steel Flange Lock Nut
  • Duplex Steel Tie Bars Stockiest
  • Duplex Steel Socket Head Cap Screws
  • Duplex Steel Wing Nuts
  • ASTM A479 Duplex Steel Allen Cap Screw
  • DSS Dock Washer
  • DSS Double Ended Stud
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Exporter of Duplex Steel Fasteners in the following Destinations


  • Saudi Arabia
  • Iran
  • Iraq
  • UAE
  • Qatar
  • Bahrain
  • Oman
  • Kuwait
  • Turkey
  • Yemen
  • Syria
  • Jordan
  • Cyprus
  • Nigeria
  • Algeria
  • Angola
  • South Africa
  • Libya
  • Egypt
  • Sudan
  • Equatorial Guinea
  • The Republic Of Congo
  • Gabon

  • USA
  • Canada
  • Mexico
  • Panama
  • Costa Rica
  • Puerto Rica
  • Trinidad And Tobago
  • Jamaica
  • Bahamas
  • Denmark
  • Russia
  • Norway
  • Germany
  • France
  • Italy
  • UK
  • Spain
  • Ukraine
  • Netherland
  • Belgium
  • Greece
  • Czech Republic
  • Portugal
  • Hungary
  • Albania
  • Austria
  • Switzerland
  • Slovakia
  • Finland
  • Ireland
  • Croatia
  • Slovenia
  • Malta
  • India
  • Singapore
  • Malaysia
  • Indonesia
  • Thailand
  • Vietnam
  • South Korea
  • Japan
  • Sri Lanka
  • Maldives
  • Bangladesh
  • Mayanmar
  • Taiwan
  • Cambodia

  • Argentina
  • Bolivia
  • Brazil
  • Chile
  • Venezuela
  • Colombia
  • Ecuador
  • Guyana
  • Paraguay
  • Uruguay


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