Why Global Buyers Choose Vision Alloys for A2-70 Bolt

ISO 3506-1

Property Class 70 Certified

M4 to M36

Wide Metric Size Range

25+ Countries

Trusted Global Exporter

MTC

EN 10204/3.1 Documentation

Since 2015

Experienced Bolt Manufacturer

Xylan, PTFE & Teflon

Special Coating Options

DIN 931 / 933

ISO 4014 / 4017 Compliant

Direct Factory Price

No Middleman Markup

A2-70 Bolt

A2-70 Bolt Product Synopsis


Metric Range
M4 to M36

Material Base
304 / A2 Stainless Steel

Property Class
70 (ISO 3506-1)

Tensile Strength
700 N/mm² Min

Yield Strength
450 N/mm² Min

Standard
DIN 931, DIN 933, ISO 4014/4017

Corrosion Use
General Purpose, Mild Chemicals

Head Type
Hex, Socket, Flange, Allen

Coating
Xylan, PTFE, Teflon, Plain

MTC
EN 10204/3.1
PED Approved A2-70 Bolt Supplier in India, To know about the latest price list of A2-70 Bolts, please Contact Us →

Table of Content

 

A2 70 Stainless Steel Hex Bolt Manufacturer in India as Per DIN 933 Standards

Vision Alloys supplies A2-70 Bolt across 25+ countries. We serve USA, UK and Canada markets. Germany, Italy and Spain import regularly. Saudi Arabia, UAE and Qatar are key regions. We deliver directly to Riyadh, Dammam and Doha. Established in 2015, we ship on committed schedules

A2-70 Bolt is an austenitic stainless steel fastener. It follows ISO 3506-1 property class 70. The material base is 304 grade steel. Minimum tensile strength reaches 700 N/mm². Minimum yield strength stands at 450 N/mm². Bolts come with hex and socket heads. Standard sizes range from M4 to M36. DIN 933 and DIN 931 threading are available

A2-70 Bolts Specification

Bolts Size
A2-70 Bolts Size
  • M1.2 To M48
Metric Size
Stainless Steel Grade A2-70 Threaded Rod Sizes
  • M4 To M45

 

Length
A2-70 Stainless Steel Nut Size
  • M2 To M20
Thread Pitch
SS 304 A2-70 Bolt Thread Pitch
  • Fine
  • Coarse
Manufacturing Methods
A2 70 Stud Bolt Manufacturing Methods
  • Cold Forging
  • CNC Machined
  • Hot Forging
Form
Grade A2-70 Washers Form
  • A
  • D
  • C
  • G
  • B
  • E

 

Temperature
AISI 304 A2-70 Bolt Melting Point
  • 1,650°C to 1,670°C
Standards
A2 70 Stainless Steel Screw Standards
  • ASTM A276
  • ISO 3506 A2-70
  • ASTM A479
  • DIN 6921
  • DIN 961
  • ISO 4014 a2-70
  • DIN 913
  • ISO 4017
  • DIN 912
Material
A2-70 Bolt End Types
  • Chamfer end
  • 45 degree angle cut
  • Half point
  • Milled end
  • Chisel point
  • Sheared end
  • Cone point
  • Semi-cone point
  • Gimlet point

 

Finish
SS 304 A2-70 Bolt Head Surface Finish
  • Plain, Electric galvanized
  • Phosphating, Zinc impregnation
  • Oxidation, DACROMET
Machines
A2 70 Threaded Rod Machines
  • CNC Lath
  • Thread Rolling
  • Making Machines
Testing
A2 70 Stainless Steel Screw Testing
  • 100% Tested A2-70 Bolts with MTC EN 10204 3.1/3.2

 

Thread Types
A2-70 Hex Bolt Thread Types
  • UN8
  • BSW
  • ACME
  • UNF
  • UNR
  • UNM
  • BSF
  • UTS
  • UNC

 

Fastener Types
A2 70 SS Fasteners Types
  • A2-70 bolt
  • nut
  • A2-70 screw
  • A2-70 allen bolt
  • A2-70 304L studs
  • SS grade A2-70 washer
  • A2-70 hex bolt
  • A2-70 socket head cap screw

 

Value Added Services
Value Added Services
  • Head Shank Drilling
  • Thread Locking
  • Head Painting
  • Bagging
Drive Style
Grade A2-70 Bolt Drive Types
  • Oval
  • Pan
  • Cross
  • Truss
  • Torx
  • Round
  • Hex
  • Hexagon washer

 

Head Types
A2 70 Stud Bolt Head Types
  • Flat
  • Phillips Drive
  • Socket cap head
  • Button head
  • Slotted Drive
  • Slotted hex washer
  • Hex washer head
  • Pan
  • Hex head
  • Oval
  • Frearson Drive
  • Combination Drive
  • Truss
Thread Class
SS A2-70 Hex Bolt Thread Class
  • Class 2A (Medium fit)
  • 2G
  • 5 ONF
  • 3G
  • 4G
  • custom
  • 5 CSF
  • Class 1A (Loose fit)
  • 6G
  • Class 3A (Tight fit)
  • 5 HF
  • 8G

 

 

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Supplier of Corrosion Resistance Grade A2-70 Stud Bolts in Various Dimension at Lowest Price in Mumbai and USA

Stainless Steel Grade A2-70 Bolt Dimensions

Stainless Steel Grade A2-70 Bolt Dimensions

Vision Alloys is A2-70 Bolt Manufacturer in India, Offers Various Sizes

Size – M-16 M-18 M-20 M-22 M-24 M-27 M30 M-33 M-36
Minor Dia (D2) 13.8 15.25 17.25 19.25 20.7 23.7 26.16 29.16 31.61
Pitch Dia (D1) 14.5 16.15 18.15 20.15 21.8 24.8 27.5 30.5 33.15
Major Dia (D) 15.68 17.62 19.62 21.62 23.58 26.58 29.52 32.52 35.46
Transition Dia Max 17.7 20.2 22.4 24.4 26.4 30.4 33.4 36.4 39.4
Head Thickness (k) 9.71 11.15 12.15 13.65 14.65 16.65 18.28 20.58 22.08
Width across Flat (s) 23.16 26.16 29.16 33 35 40 45 49 53.8
Width across corner (e) 26.17 29.56 32.95 37.29 39.55 45.2 50.85 55.37 60.79
Pitch (p) 2 2.5 2.5 2.5 3 3 3.5 3.5 4
Size – M-39 M-42 M-45 M-48 M-52 M-56 M-60 M-64
Minor Dia (D2) 34.61 37.07 40.07 42.52 46.52 49.97 53.97 57.42
Pitch Dia (D1) 36.2 38.8 41.8 44.5 48.5 52.1 57.85 59.8
Major Dia (D) 38.46 41.44 44.44 47.4 51.4 55.36 59.36 63.32
Transition Dia Max 42.4 45.6 48.6 52.6 56.6 63 67 71
Head Thickness (k) 24.58 25.58 27.58 29.58 32.5 34.5 37.5 39.5
Width across Flat (s) 58.8 63.1 68.1 73.1 78.1 82.8 87.8 92.8
Width across corner (e) 66.44 71.3 76.95 82.6 88.25 93.56 99.21 104.86
Pitch (p) 4 4.5 4.5 5 5 5.5 5.5 6

 


$

Price List

Price List of A2-70 Bolt

A2-70 Bolt Manufacturer in India, Buy Full and Half Thread A2 70 Bolt at Lowest Export Price


Get Latest Price List

Stainless Steel A2-70 Stud Bolt Shear Strength

A2-70

Diameter: M4 – M36

Proof Stress
450 N/mm²
Yield Strength
450 N/mm²

A2-70

Diameter: M4 – M36

Shear Strength
420 N/mm²
Tensile Strength
700 N/mm²

A2-70

Diameter: M4 – M36

Hardness (Max)
220 HV
Elongation (Min)
40%

 

A2 70 Allen Bolt Size Chart

PED Approved A2-70 Bolt available in M6 to M64 size range for pressure applications

Metric Size M3-0.5 M4-0.7 M5-0.8 M6-1.0 M8-1.25
Head Diameter 6.72 8.96 11.2 13.44 17.92
Head Height 1.86 2.48 3.1 3.72 4.96
Hexagon Socket Size 2 2.5 3 4 5
Key Engagement 1.1 1.5 1.9 2.2 3
Metric Size M10-1.50 M12-1.75 M16-2.00 M20-2.50
Head Diameter 22.4 26.88 33.6 40.32
Head Height 6.2 7.44 8.8 10.16
Hexagon Socket Size 6 8 10 12
Key Engagement 3.6 4.3 4.8 5.6

 

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Get A270 Bolts in Various Head Types at Factory Price, Fast Delivery to UAE


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Buy A2-70 Socket Head Cap Screw With Passive Oxide Layer to Protect the Screws Surface

A2-70 Socket Head Cap Screw Surface Finish

A2-70 Bolt supplier in india offering pan-India delivery within 3 to 5 day

Passive Oxide Layer

Standard Finish

Plain / Bright Finish

Uncoated

Electropolished

Mirror Surface

Black Oxide Coating

Dark Finish

PTFE / Teflon Coated

Low Friction

Xylan Coating

Anti-Galling

Zinc Flake Coating

Extra Barrier

Ceramic Coating

Heat Resistant

 

Refer to the Thread Pitch Table for M3, M4, and M5 A2-70 Stainless Steel Allen Bolt

SS A2-70 Allen Bolts Thread Pitch

CE Approved A2-70 Bolt meets 700 MPa tensile strength for structural projects

Thread Specification

M3 Pitch 0.5mm

M4 Pitch 0.7mm

M5 Pitch 0.8mm

 

Check SS A2-70 Flange Bolt Quality Testing as per ISO and DIN Standards

A2-70 AISI 304 Nut Manufacturing Standards




ISO 3506-1
M4 to M39



DIN 933
M3 to M64



DIN 931
M5 to M64



ISO 4014
M5 to M64



ISO 4017
M3 to M64



ASME B18.2.1
1/4″ to 3″



JIS B1180
M4 to M42



DIN 912 (Socket)
M3 to M36

 

Stainless Steel A2-70 Bolt Applications

ISO Certified A2-70 Bolt manufactured under ISO 3506-1 for marine and chemical plants

Applications

Structural Steel Work

Automotive & Machinery

Chemical Processing

Food & Beverage Plants

Furniture & Fabrication

Electrical Panel Assembly

Solar Mounting Structures

Water Treatment Plants

Request For Quote

Get a Quote From PED Approved A2-70 Bolt Stockist in India

Certified A2-70 Bolt With Fast Global Export Delivery


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SS A2-70 Flange Bolt Quality Testing

A2-70 Bolt manufacturer in india producing custom sizes up to M72 for pipelines

QC
Pass

Tensile Test

ASTM F606

QC
Pass

Hardness Test

ASTM F606

QC
Pass

Proof Load Test

ASTM F606

QC
Pass

Chemical Analysis

Spectrometer

QC
Pass

Salt Spray Test

ASTM B117

QC
Pass

Dimensional Check

ISO 4759

QC
Pass

Thread Gauge Test

Go / No-Go

QC
Pass

Visual Inspection

100% Batch

 

Types of A2-70 Fasteners

A2 70 bolts Manufacturer in India, Offers Various Types at Best Price

A2 70 Cap Screw

A2 70 Cap Screw

  • Size range: M3 – M24
  • Finish: Bright / Passivated
  • Standard: DIN 912 / ISO 4762
A2 70 Carriage Bolt

A2 70 Carriage Bolt

  • Size range: M6 – M20
  • Finish: Natural Mill Finish
  • Standard: DIN 603
A2 70 Anchor Bolt

A2 70 Anchor Bolt

  • Size range: M8 – M30
  • Style: J-Bend / L-Bend
  • Standard: ASTM F1554
SS 304 A2 70 Allen Bolt

SS 304 A2 70 Allen Bolt

  • Size range: M3 – M20
  • Drive: Hex Socket (Allen Key)
  • Grade: SS 304 / A2-70
ISO 4762 A2-70 Countersunk Screws

ISO 4762 A2-70 Countersunk Screws

  • Size range: M4 – M16
  • Head: Flush Countersunk
  • Standard: ISO 4762
ISO 10642 A2 70 Hex Bolt

ISO 10642 A2 70 Hex Bolt

  • Size range: M5 – M20
  • Head: Countersunk Hex Socket
  • Standard: ISO 10642
A2 70 Tong Bolt

A2 70 Tong Bolt

  • Size range: M6 – M16
  • Head: Round with Tongue
  • Use: Automotive & Sheet Fixing
AISI 304 A2 70 Lag Bolt

AISI 304 A2 70 Lag Bolt

  • Size range: M6 – M12
  • Thread: Coarse Wood Thread
  • Grade: AISI 304 / A2-70
A2 70 Wood Screw

A2 70 Wood Screw

  • Size range: M4 – M10
  • Drive: Slotted / Phillips
  • Use: Timber & Furniture Fixing
A2 70 Socket Head Cap Screw

A2 70 Socket Head Cap Screw

  • Size range: M3 – M24
  • Head: Cylindrical Socket
  • Standard: DIN 912
Grade 304 A2 70 Hex Head Bolt

Grade 304 A2 70 Hex Head Bolt

  • Size range: M6 – M30
  • Coating: Passivated, No Plating
  • Standard: DIN 933 / ISO 4017

A2-70 Bolt Size Chart

A2-70 Bolt size
Dia M3 M24
Size M3 to 0.50 M24 to 3.00
Length 6 MM 16 MM 10 MM 20 MM 25 MM 12 MM 8 MM 55 MM 60 MM
Thread COARSE

 

Stainless Steel A2 70 Bolt Chemical Composition

Chemical Composition
A2-70
ISO 3506
Property Class 70
Mn2.0
C0.08
Si1.0
P0.05
Cr15.0 – 20.0
S0.03
Ni8.0 – 19.0
Mo0.0

A2-70 Bolt Manufacturer Offering Verified Chemical Composition Per ISO 3506-1

A2 70 Stainless Steel Hex Bolt Mechanical Properties

Mechanical Properties
A2-70
Class 70
Yield 450 MPa
Tensile 700 MPa
Elong. 0.2×d
HB 220 Max

A2-70 Bolt Supplier Offering High Strength Fasteners for Structural Applications

 

A2-70 Washers Equivalent Grades

Grade Equivalents
A2-70 Bolt
🇺🇸 UNSS30400
🇩🇪 WNR1.4301
🇬🇧 BS304S31
🇯🇵 JISSUS 304
🇪🇺 ENX5CrNi18-10
🇮🇳 ASTMA193 B8

Equivalent Grade Chart for Global Buyers Sourcing A2-70 Bolt

 

Grade A2-70 Bolt And Nuts Temperature Range

Melting Temperature

15°C – 25°C

As specified for A2-70 grade

Solution Annealing

1010°C – 1120°C

Water quenched after treatment

Max Continuous Service

Up to 925°C

Sustained exposure, in air

Max Intermittent Service

Up to 870°C

Short-duration heat exposure

Low-Temp Toughness

Down to -196°C

Stays tough in cryogenic use

A2 70 Hex Bolt Torque Chart

A2-70 Bolt Supplier in India Who Offers Custom Sizes and provides wide Stock along with suggested tightening torque values

Nominal Dia 3 mm 4 mm 5 mm 6 mm 10 mm 12 mm 14 mm
Lubricated Clamp Load (lbs) 382 666 1076 1527 4400 6393 8758
Lubricated Clamp Load (N) 1698 2963 4787 6792 19571 28440 38961
Tightening Torque Lubricated K=0.16 (Nm) 0.81 1.9 3.83 6.52 31.3 54.6 87.3
US Units 7.2 16.8 33.9 57.7 23.1 40.3 64.4
in-lb ft-lb
Dry K = 0.35 (Nm) 0.95 2.21 4.47 7.61 36.5 63.7 102
US Units 8.4 19.6 39.5 67.3 27 47 75.1
in-lb ft-lbs
Dry Clamp Load (lbs) 204 lbs 355 lbs 574 lbs 814 lbs 2346 lbs 3410 lbs 4671 lbs
Nominal Dia 16 mm 18 mm 20 mm 24 mm 27 mm 30 mm
Lubricated Clamp Load (lbs) 11886 14603 18573 26744 34855 42532
Lubricated Clamp Load (N) 52876 64960 82618 118970 155050 189198
Tightening Torque Lubricated K=0.16 (Nm) 135 187 264 457 670 908
US Units 99.9 138 195 337 494 670
Dry K = 0.35 (Nm) 158 218 308 533 781 1060
US Units 116.5 161 228 393 577 782
Dry Clamp Load (lbs) 6339 lbs 7788 lbs 9905 lbs 14264 lbs 18589 lbs 22684 lbs

 

A2-70 vs A4-70 Bolt Key Difference

Grade Comparison
A2-70 Bolts

Standard Grade

Mo Content

0%
Chloride Resist.

Low
Corrosion Resist.


General bolting
Indoor structural use
Dry industrial areas
VS
A4-70 Bolts

Marine Grade

Mo Content

2–3%
Chloride Resist.

High
Corrosion Resist.


Marine hardware
Chemical plants
Coastal & offshore units

ISO 3506 Certified A2-70 Bolt Manufacturer in India, Supplying Various Head Types

A2-70 Bolts Warehouse Locations of Partner Suppliers

A2-70 Bolt stockist in India with ready inventory for same-day plant maintenance needs

Canada USA Spain UK South Africa
Nigeria Poland Mexico Netherlands Singapore
Italy Germany Denmark Ireland Brazil
UAE Australia Qatar Saudi Arabia Turkey

A2-70 Bolt Client Reference

Project Reference

A2-70 Bolt Client Reference

🇦🇪

United Arab Emirates

Warehouse Structural Framework

A2-70 Hex BoltsDIN 933Full Thread
🇸🇦

Saudi Arabia

Solar Mounting Structure Project

A2-70 Flange BoltsISO 3506Xylan Coated
🇩🇪

Germany

Machinery Assembly Line

A2-70 Socket ScrewsDIN 912Allen Head
🇸🇬

Singapore

Marine Deck Fabrication

A2-70 Eye BoltsCorrosion ResistantLifting Duty
🇦🇺

Australia

Water Treatment Plant Upgrade

A2-70 Anchor BoltsISO 3506Base Plate Fixing
🇧🇷

Brazil

Food Processing Plant

A2-70 Carriage BoltsPassivated FinishHygienic Grade

Request For Quote

Send Your Enquiry for A2-70 Bolt Today

Get Fast Response, Custom Sizes and Export Ready Packaging


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Find A2-70 Bolt Ready Stock in Following Locations

Estimated sea-freight transit time from Mumbai port : actual delivery may vary with vessel schedule and customs clearance

🇦🇪UAE4–6 Days
🇶🇦Qatar (Doha)5–7 Days
🇸🇦Saudi Arabia (Riyadh)6–9 Days
🇸🇦Dammam6–9 Days
🇸🇦Al Khobar6–9 Days
🇸🇦Al Jubail6–9 Days
🇹🇷Turkey14–18 Days
🇸🇬Singapore7–10 Days
🇿🇦South Africa14–18 Days
🇳🇬Nigeria18–22 Days
🇦🇺Australia14–18 Days
🇬🇧UK22–26 Days
🇪🇸Spain18–22 Days
🇩🇪Germany20–24 Days
🇮🇹Italy16–20 Days
🇮🇪Ireland24–28 Days
🇩🇰Denmark22–26 Days
🇳🇱Netherlands20–24 Days
🇵🇱Poland24–28 Days
🇺🇸USA22–30 Days
🇨🇦Canada28–32 Days
🇲🇽Mexico30–34 Days
🇧🇷Brazil28–32 Days

FAQs

A2-70 Bolt

What does A2-70 mean on a bolt?

A2 is the stainless base, 70 is the 700 MPa class.

Is A2-70 the same as 304 stainless steel?

Yes, A2-70 uses 304 grade chemistry at property class 70.

Can A2-70 Bolt be used in seawater?

Not recommended; choose A4-70 for saltwater exposure instead.

What sizes of A2-70 Bolt does Vision Alloys stock?

M4 to M36 in stock, larger sizes on request.

Stainless Steel

Other Products

  •  Vision Alloys is A Manufacturer of Steel Fasteners Company in India
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  •  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
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