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Grade A4-70 Fasteners, Screw, Threaded Rod, and Nuts manufacturer in India

A470 Bolt is made from either the 316 or 316L material grade stainless steel. The A4-70 Stainless Steel Material Specification mandates that the products meet the 700 Newton per millimeter square or 700MPa. The A4-70 Stainless Steel Screw has to withstand this minimum tensile strength. The A4 70 Stainless Steel Strength therefore is higher than the required minimum. The A4-70 Threaded Rod is used to produce the threaded bolts and screws. Jignesh Steel is a manufacturer of fasteners of A4 70 grade and our A4-70 Nut Material is cold worked to produce the different A4-70 Fastener types. The A4-70 Bolt And Nut products are acid proof in most conditions. The applications of the Stainless Steel Bolt Grade A4-70 are therefore mostly in the chemical and acid processing industries. We produce different types of special fasteners such as the Socket Head Cap Screw A4-70 is used applications where the space is limited or narrow. The Stud Bolt A4-70 is used in general applications and is one of the most used forms of the fasteners of this grade. We also manufacture special types of bolts for applications that require high strength such as the Hex Bolt A4-70 and others. Please contact us for a full product catalog and price list.

ASTM F738m A4-70 Fasteners

ASTM F738m A4-70 Fasteners

A4-70 Stainless Steel Bolts

A4-70 Stainless Steel Bolts

Stainless Steel Class A4-70 Threaded Rod and Studs

Stainless Steel Class A4-70 Threaded Rod and Studs

ASTM F738 A4-70 Hex Bolt

ASTM F738 A4-70 Hex Bolt

Grade A4-70 Stud Bolt

Grade A4-70 Stud Bolt

SS Grade A4-70 Nuts

SS Grade A4-70 Nuts

We produce wide range of cold worked austenitic stainless steel A4-70 material, A470 Bolt as per DIN ES ISO 3506-1

A4-70 Stainless Steel Bolts
A4-70 Stainless Steel Bolts Price List India

View price list of Socket Head Cap Screw, Stud Bolt, Hex Bolt in A4-70 Stainless Steel

Material Price in India
A4-70 Bolts, DIN 912, M 20 X 50 INR 46/Pcs
A4-70 Nut Bolt Washer, DIN 931, A4-70 M 20 X 260 INR 182/Pcs

Call us or send us an email to sales@jigneshsteel.com.

ASTM F738m A4-70 Fasteners Specifications
Hex Head Bolt (Partial Thread) M4 to M30 A4 - 70 ISO 4014, DIN 931
Socket Head Cap Screw M3 to M30 A4 - 70 ISO 4762, DIN 912
Hex Head Screw (Full Thread) M3 to M30 A4 - 70 ISO 4017, DIN 933
Hex Nut M3 to M30 A4 - 70 ISO 4032, DIN 934
Plain Washer (Flat) M3 to M64 A4 - 70 DIN 125 A
Flat - Section Spring Washer M3 to M36 A4 - 70 DIN 127 B
Square - Section Spring Washer M3 to M36 A4 - 70 DIN 7980
Threaded Rod/ Studs M3 to M36 A4 - 70 DIN 975

ASTM F738m A4-70 Bolts ANSI B18.2.1, DIN 931/ 933
A4-70 Hex Bolts Size Metric
  • Dia: M10 - M110
  • Length: 12 - 1200MM
Stainless Steel Class A4-70 Hex Bolts Size Inch
  • Dia: 1/2" - 4.0"
  • Length: 1/2" - 52"
ASTM F738 A4-70 Eye Bolts Metric Size
  • Dia: M10 - M48
Grade A4-70 Stud Bolt Metric Size
  • Dia: M10 - M110
  • Length: 12 mm - 6000 mm
SS Grade A4-70 Stud Bolt Inch
  • Dia: 1/2" - 4.1/2"
  • Length: 1/2" - 236"
A470 Stainless Steel Hex Nut (DIA)
  • Metric: M6 - M110
  • Inch: 1/4" - 4.5"
ASTM F738 Class A4-70 Plain Washer (DIA)
  • Metric: M6 - M110
  • Inch: 1/2" - 4.1/2"
A4-70 Stainless Steel Bolts International Standard IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI
A4-70 Grade Bolts Standard Sizes M10, M4, M16, M36 M2.5, M6, M30, M12, M8, M14, M2, M3, M20, M24, M5 to M160
F738 Class A4-70 S31600 Fasteners Threads BSF, UNF METRIC, UNC, UNEF, BSW or as required
ASME/ ANSI - American Standard A4-70 Stainless Steel Bolts
  • ANSI B 28.2.4 1M
  • ANSI B 18.2.4 2M
  • ASME B18.5
  • ASME B18.2.2
DIN German Standard A4-70 Stainless Steel Bolts DIN 933, DIN 931, DIN 970, DIN 934
ISO Standard A4-70 Steel Bolts ISO 4033, : ISO 4032, JIS standards
Stainless Steel Grade A4 Class 70 Bolts / Screws Head Drive Phillips, Slotted, Phillips/Slot, Six-Lobe
MTC (Manufacturer Test Certificate) EN 10204 / 3.1
A4-70 SS Nut Bolt Finishing 
  • Zinc white, (yellow, black, blue), black oxide,
  • Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated,
  • Stainless steel: Passivated Self-Colour, Bright Zinc Plated (BZP),
  • Hot Dip Galvanised (HDG), Sherardized, DACROMET and Mechanically Applied coating
Stainless Steel A4-70 Fasteners Production Process
  • M2-M24: Cold Forging, hot forging
  • M24-M100, machining and CNC for Customized connecting element
A4-70 Stainless Steel Bolts Coating
  • Xylon Coated Fasteners
  • Phosphate Coated Fasteners
  • Hot Dipped Galvanizing Coated Fasteners
  • Teflon Coated Fasteners
  • Zinc Coated Fasteners
  • Cadmium Coated Fasteners
  • Ptfe Coated (Teflon) Fasteners
Grade A4 Class 70 Fasteners Packing Wooden Pallet, Canton, Carton / Small Box or as required
Types of A4-70 Bolts

The a4 70 bolt is manufactured by cold forming 316 grade stainless steel. This austenitic grade stainless steel has a minimum tensile strength requirement of around 700 Mpa, which is indicated by the number 70, as mentioned in the product name  - grade a4-70 stainless steel bolts . The minimum tensile strength for this material is required to be in the form of an end product or a manufactured product for example -  a4-70 grade stainless steel bolts , nuts or screw.

As compared to the fasteners made from 304 grade stainless steel, the alloy of  a4-70 grade 316 bolts have enhanced mechanical properties like – good weldability, ease in fabrication, finishing and cleaning as well as good durability. Additionally, in comparison to nickel chromium grade stainless steels, the a4 70 bolt material is has good heat resisting as well as improved corrosion resistance on exposure to corrosive mediums. The molybdenum content in the a4-70 stainless steel bolt is responsible for its increased corrosion resistance.

Stainless steel fasteners like the a4 70 grade bolts is used in the manufacture of certain pharmaceuticals in order to avoid occurrence of excessive metallic contamination. In terms of resistance to chemicals, the grade 316 a4-70 bolts have better resistance to halogen containing compounds like - iodides, chlorides, bromides, sulfuric acid and fatty acids at elevated temperature. Therefore, due to its good mechanical properties, the grade a4-70 bolts proves to be a valuable addition to various applications. Although, the cost of the a4-70 hex bolt is high, its features improve its work life as well as durability.

ASTM F738m A4-70 Flange Bolts

ASTM F738m A4-70 Flange Bolts

A4-70 Heavy Hex Bolts

A4-70 Heavy Hex Bolts

Stainless Steel Class A4-70 Hex Bolts

Stainless Steel Class A4-70 Hex Bolts

ASTM F738 A4-70 Square Bolts

ASTM F738 A4-70 Square Bolts

Grade A4-70 U Bolts

Grade A4-70 U Bolts

SS Grade A4-70 Eye Bolts

SS Grade A4-70 Eye Bolts

ASTM F738m A4-70 Lag Bolts

ASTM F738m A4-70 Lag Bolts

A4-70 Anchor Bolts

A4-70 Anchor Bolts

Stainless Steel Class A4-70 Hex Head Bolts

Stainless Steel Class A4-70 Hex Head Bolts

ASTM F738 A4-70 Carriage Bolts

ASTM F738 A4-70 Carriage Bolts

Grade A4-70 Allen Cap Bolt

Grade A4-70 Allen Cap Bolt

SS Grade A4-70 Countersunk Bolts

SS Grade A4-70 Countersunk Bolts

Stainless Steel Class A4-70 Nuts Types
ASTM F738m A4-70 Eye Nuts

ASTM F738m A4-70 Eye Nuts

A4-70 Heavy Hex Nuts

A4-70 Heavy Hex Nuts

Stainless Steel Class A4-70 Hex Nuts

Stainless Steel Class A4-70 Hex Nuts

ASTM F738 A4-70 Jam Nuts

ASTM F738 A4-70 Jam Nuts

Grade A4-70 Lock Nuts

Grade A4-70 Lock Nuts

SS Grade A4-70 Panel Nuts

SS Grade A4-70 Panel Nuts

A470 Stainless Steel Square Nuts

A470 Stainless Steel Square Nuts

ASTM F738 Class A4-70 T-Nuts For Wood

ASTM F738 Class A4-70 T-Nuts For Wood

A4-70 Grade Wheel Nuts and Caps

A4-70 Grade Wheel Nuts and Caps

F738 Class A4-70 S31600 Wing Nuts

F738 Class A4-70 S31600 Wing Nuts

A4-70 Steel Cage Nuts and Spring Nuts

A4-70 Steel Cage Nuts and Spring Nuts

Stainless Steel Grade A4 Class 70 Self Locking Nuts

Stainless Steel Grade A4 Class 70 Self Locking Nuts

ASTM F738 A4-70 Screws Types
A4-70 SS Tek Screws

A4-70 SS Tek Screws

Stainless Steel A4-70 Deck Screws

Stainless Steel A4-70 Deck Screws

Grade A4 Class 70 Concrete Screws

Grade A4 Class 70 Concrete Screws

A4-70 Stainless Steel Socket Head Cap Screw

A4-70 Stainless Steel Socket Head Cap Screw

ASTM F738m A4-70 Eye Screw

ASTM F738m A4-70 Eye Screw

A4-70 Thumb Screw

A4-70 Thumb Screw

Stainless Steel Class A4-70 Wood Screw

Stainless Steel Class A4-70 Wood Screw

ASTM F738 A4-70 Coach Screw

ASTM F738 A4-70 Coach Screw

Grade A4-70 Hex Head Lag Screw

Grade A4-70 Hex Head Lag Screw

SS Grade A4-70 12-Point Flange Head Cap Screws

SS Grade A4-70 12-Point Flange Head Cap Screws

A470 Stainless Steel Wing Screw

A470 Stainless Steel Wing Screw

ASTM F738 Class A4-70 Captive Panel Screws

ASTM F738 Class A4-70 Captive Panel Screws

A4-70 Grade Hex Cap Screw

A4-70 Grade Hex Cap Screw

F738 Class A4-70 S31600 Allen Cap Screw

F738 Class A4-70 S31600 Allen Cap Screw

A4-70 Steel Grub Screw

A4-70 Steel Grub Screw

Stainless Steel Grade A4 Class 70 Fully Threaded Screw

Stainless Steel Grade A4 Class 70 Fully Threaded Screw

A4-70 SS Torx Screw

A4-70 SS Torx Screw

Stainless Steel A4-70 Pan Head Screw

Stainless Steel A4-70 Pan Head Screw

Grade A4 Class 70 Truss Head Screw

Grade A4 Class 70 Truss Head Screw

A4-70 Stainless Steel Flat Head Screw

A4-70 Stainless Steel Flat Head Screw

Types of Grade A4-70 Threaded Rod and Studs
ASTM F738m A4-70 Stud Bolts

ASTM F738m A4-70 Stud Bolts

A4-70 Double Ended Studs

A4-70 Double Ended Studs

Stainless Steel Class A4-70 Tie Rod

Stainless Steel Class A4-70 Tie Rod

ASTM F738 A4-70 Fully Threaded Studs

ASTM F738 A4-70 Fully Threaded Studs

Grade A4-70 Threaded Rod

Grade A4-70 Threaded Rod

SS Grade A4-70 Unc Stud Bolt

SS Grade A4-70 Unc Stud Bolt

Different types of SS Grade A4-70 Washers
ASTM F738m A4-70 Cup Washer

ASTM F738m A4-70 Cup Washer

A4-70 Square Washer

A4-70 Square Washer

Stainless Steel Class A4-70 Lock Washer

Stainless Steel Class A4-70 Lock Washer

ASTM F738 A4-70 Countersunk Washer

ASTM F738 A4-70 Countersunk Washer

Grade A4-70 Belleville Washer

Grade A4-70 Belleville Washer

SS Grade A4-70 Shim Washer

SS Grade A4-70 Shim Washer

A470 Stainless Steel Square Plate Washer

A470 Stainless Steel Square Plate Washer

ASTM F738 Class A4-70 Square Washer

ASTM F738 Class A4-70 Square Washer

A4-70 Grade Penny Washer

A4-70 Grade Penny Washer

F738 Class A4-70 S31600 Machine Washers

F738 Class A4-70 S31600 Machine Washers

Polished A4-70 Steel Washer

Polished A4-70 Steel Washer

Stainless Steel Grade A4 Class 70 Ring Washers

Stainless Steel Grade A4 Class 70 Ring Washers

A470 Stainless Steel Hex Bolt Dimensions
A470 Stainless Steel Hex Bolt Dimensions
F738 Class A4-70 S31600 Tensile Strength
SIZE METRIC A4-50 (N) A4-70 (N) A4-80 (N)
M3 2515 3521 4024
M3.5 3390 4646 5424
M4 4390 6146 7024
M5 7100 9940 11360
M6 10050 14070 16080
M7 14450 20230 23120
M8 18300 25620 29280
M10 29000 40600 46400
M12 42150 59010 67440
M14 57500 80500 92000
M16 78500 109900 125600
M18 96000 134400 153600
M20 122500 171500 196000
M22 151500 212100 242400
M24 176500 247100 282400
M27 229500 321300 367200
M30 280500 392700 448800
M33 408500 571900 653600
M36 408500 571900 653600
M39 488000 683200 780800
A4-70 Stainless Steel Bolts Physical Properties
Grade Density
(kg/m³)
Elastic Modulus (GPa) Mean Co-eff of Thermal Expansion (μm/m/°C)
Thermal Conductivity (W/m.K)
Specific Heat
0-100 °C (J/kg.K)
Elec Resistivity (nΩ.m)
0-100 °C 0-315 °C 0-538 °C
At 100 °C At 500 °C
A4-70 8000 193
15.9 16.2 17.5
16.3 21.5
500 740
A4-70 Steel Fasteners Chemical Composition
Grade C Si Mn P S Cr Mo Ni Cu N
A4-70 Minimum - - - - - 16.0 2.0 10.5 - -
ISO Maximum 0.08 1.00 2.00 0.045 0.03 18.5 3.0 14.0 1.0 -
A4-70 Minimum - - - - - 16.0 2.0 11.5 - 0.12
ISO² Maximum 0.03 1.00 2.00 0.045 0.03 18.5 3.0 14.0 1.0 0.22
Stainless Steel Grade A4 Class 70 Bolts Mechanical Properties
Grade Tensile Stress (MPa) min Yield Strength
0.2% Proof
(MPa) min
Elong
(% in 50mm) min
Hardness
Rockwell B (HR B) max
Brinell (HB) max
A4-70 700 450 40 Not required Not required