Stainless Steel
Bolts Manufacturer 

At Steel Icon Stainless Pvt. Ltd., we are a trusted manufacturer and exporter of premium-grade stainless steel bolts in India. Our bolts are precision-crafted to deliver superior mechanical strength, corrosion resistance, and durability, making them suitable for structural, mechanical, marine, and industrial applications.

Available in a variety of types, sizes, threads, and finishes, our stainless steel bolts are manufactured as per ASTM, DIN, ISO, BS, and ASME standards.

What are Stainless Steel Bolts?

Stainless steel bolts are externally threaded fasteners designed to secure or hold materials together through mating with corresponding nuts or tapped holes. They are widely used in engineering assemblies, heavy-duty machinery, construction frameworks, and marine equipment, offering exceptional resistance to corrosion, wear, and high tensile loads.
Products
Stainless Steel Bar
Fasteners
Forged Products
Flanges
Forged Fittings
Stainless Steel Billets
Round Corner Square Billets
Stainless Steel Pipes
Pipe Fittings
Valve

Stainless Steel Bolts Specifications

Property Specification
Material Grades
SS 304, SS 316, SS 321, SS 410, SS 430, Duplex 2205
Bolt Types
Hex, U-Bolt, Carriage, Anchor, Eye Bolts, Socket Head
Thread Types
Metric, UNC, UNF, BSW, BSF
Sizes Available
M5 to M100 (or 3/16″ to 4″)
Length
Up to 500 mm (custom sizes available)
Standards
ASTM A193 / A320, DIN 931 / 933, ISO 4014 / 4017
Finish Options
Self-finish, Electro Polished, Black Oxide, Zinc Coated, PTFE

Stainless Steel Bolts Equivalent Grades

Grade UNS EN / WNR
SS 304
S30400
1.4301 / X5CrNi18-10
SS 316
S31600
1.4401 / X5CrNiMo17-12-2
SS 321
S32100
1.4541 / X6CrNiTi18-10
SS 410
S41000
1.4006 / X12Cr13
SS 430
S43000
1.4016 / X6Cr17

Chemical Composition (Typical – SS 304 / SS 316)

Element SS 304 (%) SS 316 (%)
Carbon (C)
0.08 max
0.08 max
Manganese (Mn)
2.00 max
2.00 max
Silicon (Si)
1.00 max
1.00 max
Chromium (Cr)
18.0 – 20.0
16.0 – 18.0
Nickel (Ni)
8.0 – 10.5
10.0 – 14.0
Molybdenum (Mo)
2.00 – 3.00

Mechanical Properties

Property SS 304 / SS 316
Tensile Strength (MPa)
515 – 750 MPa
Yield Strength (MPa)
205 – 310 MPa
Elongation (%)
≥ 40%
Hardness (HRB)
≤ 95

Applications of Stainless Steel Bolts

Construction &
Infrastructure

Marine &
Offshore

Automotive &
Transportation

Manufacturing &
Heavy Equipment

Chemical &
Pharmaceutical Plants

Oil & Gas

Food & Beverage
Industry

Explore Our Other Types of Fasteners

We offer a wide range of stainless steel fasteners to meet diverse industrial needs:

  • Bolts – Hex bolts, carriage bolts, U-bolts, and anchor bolts for structural and mechanical applications.
  • Nuts – Hex nuts, lock nuts, and flange nuts for secure fastening solutions.
  • Screws – Machine screws, self-tapping screws, and socket head screws for automotive and electrical applications.
  • Washers – Flat washers, spring washers, and fender washers to distribute load and prevent loosening.
  • Studs & Threaded Rods – Double-end studs, fully threaded rods for industrial equipment and infrastructure projects.

Frequently Asked Questions

Explore our FAQs for insights on materials, customization, and delivery.
What grade of stainless steel is best for marine applications?
SS 316 is ideal due to its molybdenum content, offering superior saltwater and chloride resistance.
Do you supply bolts with matching nuts and washers?
Yes, we offer complete fastening assemblies including nuts, washers, and threaded rods.
Are custom bolt sizes and coatings available?
Absolutely! We provide custom diameters, thread types, and coatings like PTFE or zinc plating.
Do your bolts comply with international standards?
Yes, all bolts are manufactured to ASTM, DIN, ISO, and ASME standards, complete with MTC and test certificates.

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Our factory’s complete control ensures top-notch quality, prices, and service, reflecting our pride in what we do.

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