M3 to M36
A4-80 Metric Size Range
SS 316
A4-80 Base Material
25+ Countries
Trusted Global Exporter
NACE & PED
Certified for Oil & Gas Use
Ready Stock
Fast Export Dispatch
Xylan, PTFE & Teflon
Special Coating Options
ISO 3506-1 & DIN 931
Standards Compliant Bolting
Direct Factory Price
No Middleman Markup

A4-80 Bolts Overview
Metric Range
M3 to M36
Imperial Range
1/8″ to 1.1/2″
Length
10mm to 200mm
Standard
ISO 3506-1, DIN 931/933
US Equivalent
ASTM F593 / F594
Raw Material
Europe, India, S. Africa
MTC
EN 10204/3.1B
Environment
Salt Water & Mild Acids
Thread Type
Full Thread & Half Thread
Coating
Xylan, PTFE, Teflon, Plain
Head Type
Hex, Countersunk, Socket
Service Temp.
-200°C to 400°C
Table of Content
- A4-80 Bolts Specification
- ISO 3506-1 A4-80 Stud Bolts Thread Types
- Price List of A4-80 Stainless Steel Bolts
- A4-80 SS Nuts and Bolt Size Chart
- Types of A4-80 Stainless Steel Fasteners
- A4-80 Bolt Torque Chart
- ISO 3506-1 A4-80 Bolts Chemical Composition
- DIN 931 A4-80 Equivalent Grades
- A4-80 Threaded Rod Applications
- SO 10642 A4-80 Threaded Rod Dimensions
- A4-80 Bolts Mechanical Properties
- SS 316 A4-80 Screw Shipping Time
- A4-80 SS Nuts Weight Chart
- A4-80 SS Bolts Shear Strength Comparison
- Proof Load Capacity of A4-80 Bolts
- A4-80 Bolt Big Size Chart
NACE Certified A4-80 Stainless Steel Hex Bolts Manufacturer in India As Per DIN 931 Standard
Vision Alloys exports A4-80 bolts to more than 25 countries, with strong demand from the USA, Canada, UK, Spain, Germany, Italy, Ireland and Denmark, alongside growing markets in South Africa, Poland, Nigeria, Netherlands, Mexico, Singapore, Brazil and Australia. In the Middle East, we ship directly to UAE, Saudi Arabia, Qatar and Turkey, with dedicated delivery lanes to Doha, Dammam, Riyadh, Abu Dhabi, Al Jubail and Al Khobar. Established in 2015, we ship every order on a committed schedule with complete export documentation, which is why customers across these regions trust us for consistent A4-80 bolts supply
A4-80 Bolts Specification
- M3 to M36
- Up to 1.1/2″
- 6 mm to 200 mm
- Fine
- Coarse
- Cold Forging
- CNC Machined
- Hot Forging
- +/-0.01mm to +/-0.05mm
- 1400°C
- ISO 3506-1, ISO 3506-2
- ISO 10642
- DIN 931, DIN 933, DIN 934
- ASTM F593, ASTM F594
- 5 Pieces
- Plain, Passivated
- Xylan, PTFE, Teflon Coated
- CNC Lathe
- Thread Rolling
- Nut Forming Machines
- 100% Tested with MTC EN 10204 3.1/3.2

- UNC
- UNF
- Metric Coarse
- Metric Fine
- A4-80 Hex Bolt
- A4-80 Stud Bolt
- A4-80 SS Nuts
- ISO 10642 A4-80 Threaded Rod
- A4-80 Washer
- Head Marking
- Thread Locking
- Custom Bagging
- Hex
- Countersunk
- Socket Cap
- Button
- ISO 4032
- ISO 4033
- ISO 4017
- ISO 10642
- 6g (external)
- 6H (internal)
- Custom class on request
Request For Quote
Get Instant Pricing From A4-80 Bolts Supplier in India
Buy A4-80 Bolts and Hex Bolts in SS 316 Grade at Low Cost Worldwide
Supplier of ISO 3506-1 A4-80 Stud Bolts and Nuts With Various Threads at Low Cost in USA and UK
We supply A4-80 stud bolts and matching nuts in UNC, UNF, and metric thread types, machined to ISO 3506-1 tolerances and dispatched with full mill test certification for buyers in the USA and UK
ISO 3506-1 A4-80 Stud Bolts Thread Types
A4-80 Bolts supplier in India offers M3 to M36 sizes
UNC
Coarse Thread
UNF
Fine Thread
Metric Coarse
M3 to M36
Metric Fine
M8 to M36
BSW
1/4″ to 1.1/2″
BSF
1/4″ to 1.1/2″
ACME
Trapezoidal Thread
UNR
Rounded Root Thread
Price List of A4-80 Stainless Steel Bolts
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A4-80 Bolts Manufacturer, Buy SS A4-80 Bolt at Lowest Export Price
Wide Stock of Stainless Steel A4-80 Anchor Bolt and Screws in Various Sizes With Third Party Inspection Reports
Our warehouse in Mumbai holds ready stock of A4-80 anchor bolts and screws across all standard sizes, with third-party inspection reports available on request for every export shipment
A4-80 SS Nuts and Bolt Size Chart
NACE Certified A4-80 Bolts manufacturer in India, offers various sizes with third party inspection to USA, Europe, Saudi Arabia and UK
| A4-80 Bolt Size | M6 | M8 | M10 | M12 | M16 | M20 | M24 | M30 | M36 |
|---|---|---|---|---|---|---|---|---|---|
| Thread Pitch (Coarse) | 1.0 | 1.25 | 1.5 | 1.75 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 |
| A4-80 Hex Bolt Width Across Flats | 10mm | 13mm | 16mm | 18mm | 24mm | 30mm | 36mm | 46mm | 55mm |
| A4-80 Bolt Head Height | 4mm | 5.5mm | 6.4mm | 7.5mm | 10mm | 12.5mm | 15mm | 18.7mm | 22.5mm |
| A4-80 SS Nuts Width Across Flats | 10mm | 13mm | 17mm | 19mm | 24mm | 30mm | 36mm | 46mm | 55mm |
| ISO 10642 A4-80 Threaded Rod Size | M6 | M10 | M12 | M16 | M20 | M24 |
|---|---|---|---|---|---|---|
| Standard Rod Length | 1000mm | 1000mm | 1000mm | 1000mm | 1000mm | 1000mm |
| SS 316 A4-80 Screw Length | 10-80mm | 15-100mm | 20-120mm | 25-150mm | 30-180mm | 35-200mm |
Request For Quote
Get a Direct Quote From the A4-80 Bolt Manufacturer in India
Get A4-80 SS Nuts and Threaded Rod at factory price, fast delivery to Europe and the Middle East
Types of A4-80 Stainless Steel Fasteners
A4-80 Bolts Supplier in India, Get SS A4-80 Hex Bolt in UNC, UNF, Metric Threads at Low Cost

A4-80 Hex Bolt
- Standard six-sided head
- ISO 3506-1 dimensions
- High-load fastening use

SS A4-80 Stud Bolt
- Headless, double-end thread
- Used with A4-80 SS Nuts
- Flange & pressure joints

A4-80 SS Nuts
- ISO 4032 hex nut form
- High-torque clamping load
- Marine & offshore joints

ISO 10642 A4-80 Threaded Rod
- Continuous full-length thread
- Cut to custom length
- Anchoring & hanging systems

Stainless Steel A4-80 Washer
- Flat, spring & lock forms
- Even load distribution
- Prevents surface damage

SS 316 A4-80 Screw
- Machine & self-tapping types
- Fine and coarse thread
- General industrial fastening

Stainless Steel A4-80 Anchor Bolt
- Wedge & sleeve type options
- Concrete & base-plate fixing
- Structural steel foundations

A4-80 Socket Head Cap Screws
- Internal hex drive head
- Compact, high-torque fastening
- Machinery & equipment assembly

DIN 931 A4-80 Set Screws
- Headless, fully threaded body
- Locks parts against rotation
- Shaft & collar fixing
Refer to the SS 316 A4-80 Fasteners Torque Chart and Material Properties
Use the torque values below as a starting reference for SS 316 A4-80 fasteners, actual tightening torque should always be confirmed against your project’s engineering drawing or bolting specification.
A4-80 Bolt Torque Chart
Approximate dry torque values for A4-80 Stainless Steel Bolt tightening, confirm exact torque with your engineering drawing before installation.
| A4-80 Bolt Size | M6 | M8 | M10 | M12 | M16 | M20 | M24 |
|---|---|---|---|---|---|---|---|
| A4-80 Bolt Torque (Nm) Approx. | 9.9 | 24 | 48 | 83 | 205 | 400 | 690 |
ISO 3506-1 A4-80 Bolts Chemical Composition
ISO 3506-1
Higher Cold Work
C0.08
Si1.00
P0.045
Cr16.0-18.5
S0.030
Ni10.0-15.0
Mo2.00-3.00
A4-80 Bolt Manufacturer in India Offering Corrosion Resistance Bolts at Low Cost
DIN 931 A4-80 Equivalent Grades
PED Approved A4-80 Bolts meet strict pressure equipment directive standards
5 standards
Equivalent Grade Chart for Global Buyers Sourcing A4-80 Bolts
Buy ISO 10642 A4-80 Threaded Rod For Offshore, Oil and Gas Industries With Fastest Delivery
Our ISO 10642 A4-80 threaded rod is cut and packed to order for offshore, oil and gas projects, with priority dispatch schedules to keep site installation timelines on track
A4-80 Threaded Rod Applications
A4-80 Bolts stockist in India maintains ready stock for fast dispatch
Marine & Shipbuilding
Offshore Oil & Gas
Chemical Processing
Desalination Plants
Structural Steelwork
Pharmaceutical Equipment
Power Generation
Food & Beverage Plants
Request For Quote
Get a Quote From A4-80 Stainless Steel Bolts Stockist in India
Custom Sizes and NACE Certified A4-80 Fasteners Available on Bulk Orders
Global Reach
Countries We Export A4-80 Bolts
ISO Certified A4-80 Bolts follow ISO 3506-1 manufacturing standards strictly
Countries & Cities Served Worldwide
Europe
🇪🇸 Spain
🇵🇱 Poland
🇳🇱 Netherlands
🇩🇪 Germany
🇮🇹 Italy
🇮🇪 Ireland
🇩🇰 Denmark
North & South America
🇨🇦 Canada
🇲🇽 Mexico
🇧🇷 Brazil
Middle East
🇸🇦 Saudi Arabia
🇶🇦 Qatar
🇹🇷 Turkey
📍 Doha
📍 Dammam
📍 Riyadh
📍 Abu Dhabi
📍 Al Jubail
📍 Al Khobar
Africa
🇳🇬 Nigeria
Asia Pacific
🇦🇺 Australia
ISO 10642 A4-80 Threaded Rod Dimensions
A4-80 Bolts manufacturer in India delivers 800 MPa tensile strength grade
| Nominal Dia | M6 | M8 | M10 | M12 | M16 | M20 | M24 |
|---|---|---|---|---|---|---|---|
| Head Height Max | 4.00 | 5.50 | 6.40 | 7.50 | 10.00 | 12.50 | 15.00 |
| Width Across Flats | 10.00 | 13.00 | 16.00 | 18.00 | 24.00 | 30.00 | 36.00 |
| Width Across Corners Min | 11.05 | 14.38 | 17.77 | 20.03 | 26.75 | 33.53 | 39.98 |
| Fillet Radius Min | 0.25 | 0.40 | 0.40 | 0.60 | 0.60 | 0.80 | 0.80 |
A4-80 Bolts Mechanical Properties
Vision Alloys is an A4-80 Bolts Supplier and Stockist in India, ISO Certified for Bolting Manufacture
ISO 3506-1
HRB 95 approx.
HB 230 max
PED Approved A4-80 Bolts Supplier, Offering High Strength for Offshore & Structural Applications. Values shown are typical per ISO 3506-1 for d ≤ 24mm — confirm against the full standard for critical engineering use.
SS 316 A4-80 Screw Shipping Time
Vision Alloys is an A4-80 Bolts manufacturer in India, offers A4-80 SS Bolts at low cost from Mumbai
| Country Name | Singapore | Qatar | Oman | UAE | South Africa | Egypt | Saudi Arabia | Malaysia | Turkey | Thailand |
| Shipping time | 8-10 Days | 8-10 Days | 7-8 Days | 5 Days | 25-30 Days | 11-13 Days | 8-10 Days | 8-10 Days | 21 Days | 7 Days |
Project Reference
A4-80 Bolts Client Reference
United Arab Emirates
Offshore Platform Bolting Upgrade
Saudi Arabia
Petrochemical Refinery Flange Joints
Germany
Structural Steel Framework
Singapore
Marine Shipyard Fabrication
Australia
Desalination Plant Project
Brazil
Power Plant Piping Bolting
A4-80 SS Nuts Weight Chart
Approximate weight of A4-80 Bolts in KGS per 100 pieces, length 40mm, actual weight varies with head style and length.
| Approximate Weight In KGS For 100 NOS : A4-80 Hex Bolt (Length 40mm) | |||||||
|---|---|---|---|---|---|---|---|
| Size | M6 | M8 | M10 | M12 | M16 | M20 | M24 |
| Weight (Kg/100pcs) | 0.7 | 1.6 | 3.1 | 5.4 | 13.2 | 25.6 | 44.0 |
| Approximate Weight In KGS For 100 NOS : A4-80 SS Nuts | |||||||
| Size | M6 | M8 | M10 | M12 | M16 | M20 | M24 |
| Weight (Kg/100pcs) | 0.3 | 0.65 | 1.2 | 2.0 | 4.6 | 8.9 | 15.3 |
Request For Quote
Send Your Enquiry for A4-80 Stud Bolts & Anchor Bolts
PED Approved A4-80 Fasteners Shipped to 25+ Countries Worldwide
A4-80 SS Bolts Shear Strength Comparison
A4-80
Diameter: M6 – M36
480 MPa
800 MPa
A2-70
Diameter: M6 – M36
420 MPa
700 MPa
A4-70
Diameter: M6 – M36
420 MPa
700 MPa
Proof Load Capacity of A4-80 Bolts
| Size | M6 | M8 | M10 | M12 | M16 | M20 | M24 |
|---|---|---|---|---|---|---|---|
| Stress Area (mm²) | 20.1 | 36.6 | 58.0 | 84.3 | 157 | 245 | 353 |
| A4-80 Proof Load (kN) | 12.1 | 22.0 | 34.8 | 50.6 | 94.2 | 147.0 | 211.8 |
A4-80 Bolt Standard
ISO 3506-1
M3 to M36
ISO 3506-2
M3 to M36
ISO 10642
M3 to M36
DIN 931, 933
M6 to M36
DIN 934, 6923
M6 to M36
ASTM F593
1/4″ to 1.1/2″
ASTM F594
1/4″ to 1.1/2″
DIN 976-1
M6 to M36
A4-80 Bolt Big Size Chart
A4-80 Bolt manufacturer in India who provides custom big sizes with quick delivery
| Thread Size | M20 | M24 | M27 | M30 | M33 | M36 |
|---|---|---|---|---|---|---|
| Thread Pitch | 2.5 | 3.0 | 3.0 | 3.5 | 3.5 | 4.0 |
| A4-80 Bolt Width Across Flats | 30mm | 36mm | 41mm | 46mm | 50mm | 55mm |
| A4-80 Bolt Head Height | 12.5mm | 15.0mm | 17.0mm | 18.7mm | 21.0mm | 22.5mm |
Find A4-80 Bolts Ready Stock in Following Locations
Estimated sea-freight transit time from Mumbai port : actual delivery may vary with vessel schedule and customs clearance
FAQs
A4-80 Bolts
What does A4-80 mean on a bolt?
- A4 = 316 grade stainless steel
- 80 = 800 MPa min. tensile strength
What is the difference between A4-80 and A2-80 bolts?
- A4 contains molybdenum
- A2 has no molybdenum
- A4 gives better corrosion resistance
Is A4-80 stronger than A4-70?
- A4-80 = 800 MPa tensile
- A4-70 = 700 MPa tensile
- A4-80 is the stronger grade
What is the material equivalent of an A4-80 bolt?
- Base material: SS 316 / 316L
- Cold-worked to 800 MPa class
What sizes does Vision Alloys manufacture in A4-80?
- Metric range: M3 to M36
- In stock, ready dispatch
Is A4-80 the same as A4 316 stainless steel?
- A4-80 is 316-grade material
- Cold-worked to 800 MPa strength
Can A4-80 bolts be used in marine environments?
- Yes, marine grade approved
- Molybdenum resists saltwater corrosion
What is the maximum size available in A4-80 bolts?
- Standard stock up to M36
- Larger sizes on request
Do you provide a mill test certificate for A4-80 bolts?
- Yes, EN 10204/3.1 MTC included
- Supplied with every batch
Are A4-80 bolts NACE and PED certified?
- NACE Certified for sour service
- PED Approved for pressure equipment
- Vision Alloys is A Manufacturer of Steel Fasteners Company in India
- Dealers and Distributors of Bolting Products in USA, Europe, New Zealand, Algeria, United Kingdom, Morocco, South Africa and Australia, Egypt, Peru, chile, Jordan, Argentina
- Manufacturer and Supplier of Stainless Steel, Nickel Alloy, Titanium, Copper Materials in Mumbai.
- Stockist and Trader of Top Quality High Temperature Alloys for Oil and Gas Industry and Standard & Custom Sizes in EX Stock

