Vision Alloys manufactures SS 316 hex bolts for applications where normal stainless just does not hold up. These bolts are austenitic stainless steel with 2 to 3% molybdenum added, which is the key element that separates 316 from 304. That extra molybdenum gives better resistance to pitting and crevice corrosion, especially where chlorides are involved. Chemical plants, offshore rigs, marine fittings, and food processing lines end up specifying 316 because saltwater or harsh chemicals would eat through lower grades over time. Manufacturing follows ASTM, ASME, DIN, and ISO standards, so each batch comes with proper documentation. Sizes and thread lengths cover a wide range, and custom dimensions can be made on request.


Features: Stainless Steel 316 Hex Bolts (1.4401) possess several features that make them suitable for a variety of applications. The notable features include:

  • Corrosion Resistance: One of the primary features of Stainless Steel 316 is its exceptional corrosion resistance. It is particularly resistant to pitting and crevice corrosion in chloride environments, making it suitable for use in marine and coastal applications.
  • High Temperature Resistance: Stainless Steel 316 exhibits good resistance to high temperatures, making it suitable for applications where elevated temperatures are a consideration.
  • Strength and Durability: The alloy offers high tensile strength and excellent durability, providing reliable performance in demanding conditions.
  • Aesthetic Appeal Stainless Steel 316 has an attractive appearance with a smooth, shiny surface, making it not only functional but also aesthetically pleasing.


Manufacturer Of SS 316 Heavy Hex Bolts, Stainless Steel 316 Hexagon Bolt, SS 316 Hex Bolts, Steel 316 Hex Bolts, SS 316 Hex Head Bolts, Stainless Steel 316 Flange Hex Bolt, SS 316 Hex Bolts Manufacturers in India.


Stainless Steel 316 Hex Bolts
  • UNS

    S31600

  • WNR

    1.4401

  • ASTM / ASME

    ASTM A193 / SA193

  • SHARE

Stainless Steel 316 Hex Bolt Suppliers, Stainless Steel 316 Heavy Hex Head Bolt Stockist, SS 316 Hexagonal Bolt, SS 316 Hex Bolt Manufacturers, 316 Stainless Steel Hex Shoulder Bolt.


The composition of 316 stainless steel hex bolts includes approximately 16-18% chromium, 10-14% nickel, and 2-3% molybdenum, which significantly enhances their resistance to pitting and crevice corrosion in chloride environments. Additional elements include manganese, silicon, carbon, phosphorus, and sulfur. This robust composition ensures that ss 316 hex bolts can withstand extreme conditions and maintain structural integrity over time. Engineers and professionals prefer 316 ss hex bolts for their reliable performance and long-lasting durability.


When sourcing stainless steel 316 hex bolts from a stainless steel 316 hex bolts manufacturer or stainless steel 316 hex bolts supplier in India, it is crucial to consider the pricing and availability. On average, the price for these hex bolts ranges from ₹250-₹300 per kilogram. This cost reflects the high-quality material and manufacturing standards required to produce 316 stainless steel hex bolts. For bulk orders or specific project requirements, obtaining a detailed quote from the supplier is advisable to get the best value for your investment.


316 ss heavy hex bolts offer enhanced strength and stability, making them suitable for demanding applications. Vision Alloys, a reputed supplier, provides an extensive range of these fasteners, ensuring that clients receive high-quality products tailored to their needs. Partnering with a trusted stainless steel 316 hex bolts supplier in India like Vision Alloys guarantees that you receive top-notch materials, ensuring the success and longevity of your projects.


ASTM A193 UNS S31600 Hex Bolts, UNS S31600 Hex Bolts, SS 316 Hex Head Bolt, Stainless Steel 316 Hex Bolts, SS 316 Hex Bolt, SS 316 Hex Bolt Manufacturers in India.


fevicon-logo SS 316 Hex Bolts Specification

Specifications ASTM A193 / ASME SA193
Standard ISO, ASTM, DIN, JIS, IS, GB, BS, and all International Standards
Diameter M3 to M100 up to 1000 MM
DIN Standard B.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913
UTS NPT, UNS, UNF, UNC, UNEF, NPTF
ISO ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards
Threads UNF, BSW, BSF, METRIC, UNC, or as required
Surface Coating Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request
Manufacturing Process Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing.

fevicon-logo SS 316 Hex Bolt Material

SS 316 hex bolts are made from austenitic stainless steel, built mainly around chromium, nickel, and molybdenum. Chromium sits between 16 and 18%, and that is what forms the passive layer on the surface of the bolt. Nickel, at 10 to 14%, keeps the structure stable and adds some ductility. Then there is molybdenum, 2 to 3%, which is really the key difference from 304 stainless. It reinforces that passive layer against chloride attack, so the bolt holds up better against pitting and crevice corrosion in saltwater or acidic process fluids.


Tensile strength comes in at a minimum of 515 MPa (75,000 psi), and yield strength at a minimum of 205 MPa (30,000 psi). That is enough to handle repeated tightening and vibration without the bolt working loose. The alloy also keeps its mechanical properties at higher temperatures, so it works fine on hot process lines, not just cold ones.


This is why 316 shows up so often in marine hardware, offshore platforms, chemical processing equipment, food and beverage machinery, and pharmaceutical plants—places where corrosion resistance or hygiene cannot really be compromised. Vision Alloys manufactures to ASTM A193 Grade B8M, ASTM F593, and ISO 3506, so certification matches whatever standard is stated on the purchase order.


fevicon-logo Equivalent Grades Of Stainless Steel 316 Hex Bolts

STANDARD WERKSTOFF NR. UNS JIS BS AFNOR EN
SS 316 1.4401 / 1.4436 S31600 SUS 316 316S31 / 316S33 Z7CND17‐11‐02 X5CrNiMo17-12-2 / X3CrNiMo17-13-3

fevicon-logo Chemical Composition of Stainless Steel 316 Hex Bolts

Grade C Mn Si P S Cr Mo Ni Fe
SS 316 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 16.00 - 18.00 2.00 - 3.00 11.00 - 14.00 67.845 min

fevicon-logo Mechanical Properties of SS 316 Hex Bolts

Property Class Tensile Strength (MPa) min Proof Stress Rp0.2 (MPa) min Elongation (% in 4D min)
A4-70 700 450 20
A4-80 800 600 20

fevicon-logoSS 316 Hex Bolt Size Chart & Dimensions

Vision Alloys manufactures SS 316 hex bolts from 1/4 inch up to 4 inch nominal diameter (approximately M6 to M100 in metric sizes). The table below covers the head dimensions for the most commonly ordered sizes. Custom diameters, longer lengths, and non-standard thread configurations are available on request.


Nominal Size (in) Width Across Flats, F (in) Head Height, H (in) Thread Length up to 6 in Bolts (in)
1/4 7/16 11/64 0.75
5/16 1/2 7/32 0.875
3/8 9/16 1/4 1.00
1/2 3/4 11/32 1.25
5/8 15/16 27/64 1.50
3/4 1-1/8 1/2 1.75
1 1-1/2 43/64 2.25

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fevicon-logo Types of Stainless Steel 316 Hex Bolts

Hex Bolt

SS 316 Hex Bolt

Heavy Hex Bolt

SS 316 Heavy Hex Bolt

Hex Tap Bolt

SS 316 Hex Tap Bolt

Hex Flange Bolt

SS 316 Hex Flange Bolt

Half Threaded Hex Bolt

SS 316 Half Threaded Hex Bolt

Fully Threaded Hex Bolt

316 SS Fully Threaded Hex Bolt

Hex Machine Bolt

SS 316 Hex Machine Bolt

Hex Shoulder Bolt

SS 316 Hex Shoulder Bolt


Hex Bolt Manufacturers In India

  • Hardness testing to ISO 6508-1

  • Nut proof load testing to ISO 898-2

  • Suitability for preloading to EN 14399-2

  • Calibrated gauges and tools


fevicon-logo Other Types Of Stainless Steel 316 Hex Bolts

SS 316 Heavy Hex Bolts Manufacturer in India Best Stainless Steel 316 Hex Bolts
UNS S31600 Hex Bolt Stainless Steel 316 Heavy Hex Bolt Manufacturer in Mumbai
Stainless Steel 316 Hex Bolt Supplier in India SS 316 Hex Bolt Price List
316 SS Hex Bolt Manufacturer in Mumbai 316 Stainless Steel Hex Machine Bolt
Stainless Steel 316 Hex Bolt 316 Stainless Steel Industrial Hex Bolts
SS 316 Hex Head Shoulder Bolt Price List 316 Stainless Steel Hex Tap Bolts
SS 316 Hex Bolt Supplier in Mumbai 316 SS Hex Bolt Manufacturer
SS 316 Hex Bolts Manufacturers in Mumbai A4 Stainless Steel 316 Hex Bolt
ASTM A193 316 Stainless Steel Hex Bolt M6 Stainless Steel 316 Hex Bolt
316 SS Hex Flange Bolt Stainless Steel 316 Hex Bolt Suppliers in Mumbai
SS 316 Hex Bolts Suppliers in India SS 316 Hex Bolts Manufacturer in India
1.4401 Hex Head Bolts Stainless Steel 316 Hex Tap Bolt

fevicon-logo Stainless Steel 316 Hex Bolts Application Industries

Aerospace Industry
Nuclear Industry
MEdical Industry
Marine Industry
Mining Industry
Automotive Industry
Construction Industry
Manufacturing Industry

Why Choose Vision Alloys


Quality Assurance

To preserve the high standards of our selection of industrial Hex Bolt, we have always adhered to a systematic quality management process.

Team OF Experts

Our staff of experts is vibrant and talented, and they have always been our largest supporters and contributors to our success. Our vision is to create a world of Hex Bolt.

fevicon-logo Frequently Asked Questions

Mainly it comes down to molybdenum. 316 has 2 to 3% of it and 304 does not, and that is what gives 316 better resistance to pitting and crevice corrosion in chloride-heavy or acidic conditions. If it is just general indoor use, 304 is usually fine. Anywhere near saltwater, chemicals, or heavy cleaning agents, go with 316.

Yes, this is one of the main reasons people ask for it. The molybdenum content handles chloride-induced pitting much better than standard grades, so it is the usual choice for boat fittings, dock hardware, and offshore platform assemblies sitting in saltwater spray day after day.

Yes. Custom lengths, thread pitches, and head shapes outside the standard chart can be made on request. Passivated and plain finish are the standard options, and other coatings can usually be arranged if a project needs them.

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