Supplier of A4-70 SS Bolt, check Difference Between a4-70 vs a4-80 as well as a4-70 bolt vs 8.8 here
A4 70 Bolt is made up of 316 or 316L austenitic stainless steel grades. The A in the name indicates that the fasteners are made up of a cold worked austenitic stainless steel. Viha Steel & Forging is a leading supplier and manufacturer of the different A4-70 Stainless Steel Bolt types in different grades and specifications. There are different standards to govern the dimensions. The sizes range from M10 to M100 for the A4-70 Hex Bolt and other fasteners in this range.
The hex bolts are stronger due to their geometric shapes and they are preferred in use with heavy tools. The A4-70 SS Bolt has 700Mpa minimum tensile strength. The 70 in the name indicates one tenth of the minimum tensile strength in MPa. The A4-70 Stud Bolt is one of the types which has a stud and is used in piercing applications in general. These fasteners can be used in elevated temperature applications. They can operate at up to 870 degrees Celsius. The A4-70 Grade Stainless Steel Bolts also have good corrosion resistance. The material has phosphorus, manganese, silicon, sulfur, 18% chromium, 8% nickel and 3% molybdenum in the composition.
This composition provides the A4 70 Grade Bolts to have good acidic corrosion resistance and chloride ion corrosion resistance. Therefore these fasteners are preferred for use in the marine industrial applications and in acidic applications. The a4-70 bolt vs 8.8 difference is that the 8.8 bolts are of higher tensile strength and are made up of a different material composition. There are other grades of fasteners made up of the same material but the mechanical properties vary. The difference in a4-70 vs a4-80 is the minimum tensile strength. The A4-70 grade has 700MPa tensile strength and A4-80 has 800MPa minimum tensile strength. Please feel free to contact us for more information on the different fasteners and pricing.
A4-70 Stainless Steel Bolts Specification
| Product name | A4-70 Stainless Steel Bolts |
|---|---|
| Place of Origin | India |
| Standard | ISO 4017, DIN931, GB5783, DIN, ASTM, ANSI, JIS, EN, AS |
| DIN Standard | B.S. DIN933 DIN931 DIN934 DIN912 DIN603 DIN6923 |
|
Passivation /plain |
| A4-70 Stainless Steel Bolts Size | M2 - M100 |
| A4-70 Stainless Steel Bolts Diameter | M3-M60 |
| A4-70 Stainless Steel Bolts Length | 6mm-500mm |
| Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc |
| Neck type | Hex, Square, Triangular, Oval & Knurled etc |
| Drive type | Phil, Slotted, Hex socket, Torx & square slot etc |
| A4-70 Stainless Steel Bolts Application | Wind tower, Nuclear power, Railway, Automotive industry, Construction, Electronic industry |
| Dimensions | ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded. |
| Drive Style | Type I |
| A4-70 Stainless Steel Bolts Material | 18-8 Stainless Steel, stainless steel ss 304/ SS316 A2/A4, SS201, SS303, SS304, SS316, SS316L, SS904L, A2-70; A4-70; A4-80 |
| Thread Requirements | ASME B1.1, UNC & UNF, Class 2A (Fastenal will inspect and accept parts with a 1A no-go gauge) |
| Finish | Per ASTM A380/A380M |
| Finishing | Zinc Plated (Yellow, White, Blue, Black), Hop Dip Galvanized (HDG) phosphorization, Black Oxide, Geomet, Dacroment, anodization, Nickel plated, Zinc-Nickel plated, Brass Plated, Tin Plated, Black Plated, Copper Plated, Gold Plated, Salt fog test |
| Stock Products | Stainless steel: All DIN, GB Standard and part ASNI standard A4-70 Stainless Steel Bolts, Example: ISO7380, DIN7981, DIN7982, DIN916, DIN913, DIN7985, DIN912 |
| Production technology | Cold Forged |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing |
| MOQ | 10 pieces |
| Delivery time | Regular product is about 7-15 days, custom product will according to special requirement |
| Others | OEM, ODM, ±0.03MM tolerance |
| Surface treatment of A4-70 Stainless Steel Bolts |
|
| Coatings | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| Tolerance of A4-70 Stainless Steel Bolts | +/-0.01mm to +/-0.05mm |
| Samples | Yes |
| Production Capacity | 2,700,000 pieces per month |
| Payment Terms | T/T, Paypal, Western Union, L/C or Trade Assurance 30% deposit & balance before shipping |
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buy directly from manufacturer of stainless steel bolt grade a2-70 online and save cost, check a4 70 bolt torque and shear strength
A4-70 Stainless Steel Bolts Dimensions
| A4 70 Stainless Steel Fasteners Type | SS Fasteners SIZE | PROPERTY CLASS | SS Fasteners Standard | |
|---|---|---|---|---|
| A4 70 Stainless Steel Socket Head Cap Screw |  |
M3 to M30 | A4 - 70 | DIN 912 / ISO 4762 |
| A4 70 Stainless Steel Hex Head Screw (Full Thread) |  |
M3 to M30 | A4 - 70 | DIN 933 / ISO 4017 |
| A4 70 Stainless Steel Hex Head Bolt (Partial Thread) |  |
M4 to M30 | A4 - 70 | DIN 931 / ISO 4014 |
| A4 70 Stainless Steel Hex Nut |  |
M3 to M30 | A4 - 70 | DIN 934 / ISO 4032 |
| A4 70 Stainless Steel Plain Washer |  |
M3 to M64 | A4 | DIN 125 A |
| A4 70 Stainless Steel Flat - Section Spring Washer |  |
M3 to M36 | A4 | DIN 127 B |
| A4 70 Stainless Steel Square - Section Spring Washer |  |
M3 to M36 | A4 | DIN 7980 |
| A4 70 Stainless Steel Threaded Rod |  |
M3 to M36 | A4 - 70 | DIN 975 |
Check A4-70 Stainless Steel Bolts Dimensions full Catalog
We can supply A4-70 Stainless Steel Bolt with customized sizes, view a4-70 bolt specification
A4-70 Stainless Steel Bolts Weight Chart
Table B1
HEX BOLT DIMENSIONS
| Bolt Size | A (max) | B | C (min) | D | E | F Thread Length for Bolt Length |
||
|---|---|---|---|---|---|---|---|---|
| max | min | 6" and shorter |
over 6" | |||||
| 1/4" | 0.260 | 7/16 | 0.484 | 11/64 | 0.03 | 0.01 | 0.750 | 1.000 |
| 5/16" | 0.324 | 1/2 | 0.552 | 7/32 | 0.03 | 0.01 | 0.875 | 1.125 |
| 3/8" | 0.388 | 9/16 | 0.620 | 1/4 | 0.03 | 0.01 | 1.000 | 1.250 |
| 7/16" | 0.452 | 5/8 | 0.687 | 19/64 | 0.03 | 0.01 | 1.125 | 1.375 |
| 1/2" | 0.515 | 3/4 | 0.826 | 11/32 | 0.03 | 0.01 | 1.250 | 1.500 |
| 5/8" | 0.642 | 15/16 | 1.033 | 27/64 | 0.06 | 0.02 | 1.500 | 1.750 |
| 3/4" | 0.768 | 1-1/8 | 1.240 | 1/2 | 0.06 | 0.02 | 1.750 | 2.000 |
| 7/8" | 0.895 | 1-5/16 | 1.447 | 37/64 | 0.06 | 0.02 | 2.000 | 2.250 |
| 1" | 1.022 | 1-1/2 | 1.653 | 43/64 | 0.09 | 0.03 | 2.250 | 2.500 |
| 1-1/8" | 1.149 | 1-11/16 | 1.859 | 3/4 | 0.09 | 0.03 | 2.500 | 2.750 |
| 1-1/4" | 1.277 | 1-7/8 | 2.066 | 27/32 | 0.09 | 0.03 | 2.750 | 3.000 |
| 1-3/8" | 1.404 | 2-1/16 | 2.273 | 29/32 | 0.09 | 0.03 | 3.000 | 3.250 |
| 1-1/2" | 1.531 | 2-1/4 | 2.480 | 1 | 0.09 | 0.03 | 3.250 | 3.500 |
| 1-3/4" | 1.785 | 2-5/8 | 2.893 | 1-5/32 | 0.12 | 0.04 | 3.750 | 4.000 |
| 2" | 2.039 | 3 | 3.306 | 1-11/32 | 0.12 | 0.04 | 4.250 | 4.500 |
| 2-1/4" | 2.305 | 3-3/8 | 3.719 | 1-1/2 | 0.19 | 0.06 | 4.750 | 5.000 |
| 2-1/2" | 2.559 | 3-3/4 | 4.133 | 1-21/32 | 0.19 | 0.06 | 5.250 | 5.500 |
| 2-3/4" | 2.837 | 4-1/8 | 4.546 | 1-13/16 | 0.19 | 0.06 | 5.750 | 6.000 |
| 3" | 3.081 | 4-1/2 | 4.959 | 2 | 0.19 | 0.06 | 6.250 | 6.500 |
| 3-1/4" | 3.335 | 4-7/8 | 5.372 | 2-3/16 | 0.19 | 0.06 | 6.750 | 7.000 |
| 3-1/2" | 3.589 | 5-1/4 | 5.786 | 2-5/16 | 0.19 | 0.06 | 7.250 | 7.500 |
| 3-3/4" | 3.858 | 5-5/8 | 6.198 | 2-1/2 | 0.19 | 0.06 | 7.750 | 8.000 |
| 4" | 4.111 | 6 | 6.612 | 2-11/16 | 0.19 | 0.06 | 8.250 | 8.500 |
Notes:
Body Diameter - There may be a reasonable swell or fin under the head or die seam on the body not to exceed the basic bolt diameter by the following:
- 0.030" for sizes up to 1/2"
- 0.050" for sizes 5/8" and 3/4"
- 0.060" for sizes over 3/4" to 1-1/4"
- 0.090" for sizes over 1-1/4" to 2"
- 0.120" for sizes over 2" to 3"
- 0.190" for sizes over 3"
A4 70 bolts Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni | Cu | N | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A4-70 | Min | – | – | – | – | – | 16.0 | 2.0 | 10.5 | – | – |
| ISO | Max | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 18.5 | 3.0 | 14.0 | 1.0 | – |
| A4-70 | Min | – | – | – | – | – | 16.0 | 2.0 | 11.5 | – | 0.12 |
| ISO² | Max | 0.03 | 1.00 | 2.00 | 0.045 | 0.03 | 18.5 | 3.0 | 14.0 | 1.0 | 0.22 |
| 316 | Min | – | – | – | 0 | – | 16.0 | 2.00 | 10.0 | – | |
| Max | 0.08 | 0.75 | 2.0 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.10 | ||
| 316L | Min | – | – | – | – | – | 16.0 | 2.00 | 10.0 | – | |
| Max | 0.03 | 0.75 | 2.0 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.10 | ||
| 316H | Min | 0.04 | 0 | 0.04 | – | – | 16.0 | 2.00 | 10.0 | – | |
| Max | 0.10 | 0.75 | 0.10 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | – |
A4 70 stainless steel bolt Mechanical Properties
| Grade | Tensile Strength (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 |
| 316 | 515 | 205 | 40 | 95 | 217 |
| 316L | 485 | 170 | 40 | 95 | 217 |
| 316H | 515 | 205 | 40 | 95 | 217 |
A4 70 bolt stainless steel 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) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
||||||||||
| 316/L/H | 8000 | 193 |
|
|
500 | 740 |
Stockist of Grade 316 A4-70 Bolts material as per the requirements of customers
A4-70 Stainless Steel Bolts Price List
- DIN933 A4 70 bolt stainless steel
Price: US $0.01-0.1 / Piece
1 Piece (Min. Order) - High Quality Fasteners Manufactures A2 A4 70 80 Stainless Steel Din316 Wing Bolt
Price: US $0.001-1 / Piece
1000 Pieces (Min. Order) - Customized wholesale quality a2 a4 70 80 stainless steel stud bolt
Price: US $0.001-1 / Piece
3000 Pieces (Min. Order) - Top Quality stainless steel bolts grade a4 70 Exported to Worldwide
Price: US $0.1-999 / Piece
50000 Pieces (Min. Order) - DIN933 a4 70 Stainless Steel Hex head bolt
Price: US $0.01-1.5 / Piece
50000 Pieces (Min. Order) - Customized Double head stainless steel wooded thread hanger bolt
Customs Data
Price: US $0.01-0.5 / Piece
1 Piece (Min. Order) - Stainless Steel Hex Bolt /Fastener Bolt/Hex Bolt
Price: US $0.01 / Pieces
500 Pieces (Min. Order) - Fastener, Nut and Bolt, Hex Nuts and Hex Bolts DIN933 DIN931 DIN934
Price: US $0.01-1 / Piece
500 Pieces (Min. Order) - Fasteners Manufactures A2 A4 70 80 Stainless Steel Stud Bolt
Price: US $0.1-1 / Piece
10000 Pieces (Min. Order) - stainless steel a4 70 hexagon bolt metric coarse
Price: US $0.01-0.1 / Piece
1 Piece (Min. Order) - Chuanghe supplier a2 a4 70 80 stainless steel stud bolt
Price: US $0.01-2 / Piece
5000 Pieces (Min. Order) - Stainless Steel A4 70 Bolt/Metric Hexagon Screw/Metric Coarse Bolt
Price: US $0.01-1 / Piece
100 Pieces (Min. Order) - Trade Assurance In Stock High Quality Stainless Steel A4 70 M8 Cheese Head Allen Bolt
Price: US $0.1-0.2 / Piece
1000 Pieces (Min. Order) - DIN571 Wood Bolt a4 70 Bolt Stainless Steel 316 Hex Bolt
Price: US $0.0785-0.1 / Piece
1 Piece (Min. Order) - Manufacturer of a2 a4 70 80 stainless steel din6921 hexagon flange bolts
Price: US $0.01-1.5 / Piece
5000 Pieces (Min. Order) - Factory price A4 70 A4 80 304 316 316L stainless steel bolts
Price: US $0.035-1.05 / Piece
10000 Pieces (Min. Order) - Stainless steel a2 70 a4 80 sleeve anchor bolts many in stock
Price: US $0.01-0.05 / Pieces
1000 Pieces (Min. Order) - DIN938 A4 70 316 Stainless Steel Double Ended Screw Bolt
Price: US $0.01-5 / Piece
1 Piece (Min. Order) - Best quality and standard DIN933 Hex head a4 70 stainless steel bolts
Price: US $0.01-0.1 / Piece
10000 Pieces (Min. Order) - stainless steel a2 70 a4 80 M24 bolt
Price: US $0.1-1 / Piece
100 Pieces (Min. Order) - fasteners manufactures a2 a4 70 80 stainless steel din316 wing bolt
Price: US $0.26-1.59 / Piece
1000 Pieces (Min. Order) - a4 70 316 stainless steel hex flange bolt
Price: US $0.1-1 / Piece
5000 Pieces (Min. Order) - stainless steel a4 70 bolt for high speed railways
Price: US $1500-4850 / Ton
1 Ton (Min. Order) - Stainless Steel Hex head bolt DIN933 a4 70
50 Pieces (Min. Order) - 304 a4 m20 a4 80 a2 70 4140 head stainless steel bolts
Price: US $0.3-1 / Piece
300 Kilograms (Min. Order) - DIN933 931 SUS304,316 Stainless Steel Hex head bolt
Price: US $0.05-1 / Piece
1 Carton (Min. Order) - 316 stainless steel carriage bolt with nut and washer sets
Price: US $0.01-1 / Piece
1000 Pieces (Min. Order) - A4-70 316 Stainless Steel DIN933 Full Threaded Hex Bolt
Price: US $0.009-22 / Piece
1 Piece (Min. Order) - Hex head nuts and bolts sizes, non-standard is Avaliable
Price: US $0.01-0.5 / Piece
1 Piece (Min. Order) - hex head bolts a4-70
1 Unit (Min. Order) - 304 316 stainless steel standard size hexagon bolt and nut
Price: US $0.01-1 / Piece
1000 Pieces (Min. Order) - Stainless Steel Carriage bolt (DIN603)
10 Tons (Min. Order) - Din 933 Din934 Stainless Steel Metric Thread Hex Bolts And Nuts in Hardware
Price: US $0.01-0.5 / Piece
50000 Pieces (Min. Order) - Stainless Steel Hex Bolt and Nut and Washer HDG Hex Bolt DIN933 DIN931
Price: US $0.2-0.8 / Pieces
100 Pieces (Min. Order) - Socket Head 12.9 Grade Nylon Threaded Rod A4 70 Stainless Steel U S10t Tc Nut And Astm A307 Hex Bolt
Price: US $0.001-10 / Piece
1000000 Pieces (Min. Order) - Gr11 Allen Head Titanium Bolts Din912 For Bicycle Parts Alu Bolt M12
Price: US $0.02-0.2 / Piece
1 Piece (Min. Order) - Grade 8.8 10.9 12.9 High strength Hex Bolt and Nut Din 933 934
Price: US $0.01-0.05 / Piece
20000 Pieces (Min. Order) - high tensile stud bolt astm a193 b7 a194 2h stud bolts and nuts
Price: US $0.01-0.5 / Piece
2000 Pieces (Min. Order) - SS304 SS316 A2 A4 Stainless steel Mushroom Head Square Neck Carriage Bolt DIN603
Price: US $0.0002-0.1 / Piece
100 Pieces (Min. Order) - Fasteners manufacturers stainless steel hex bolt
Price: US $0.1-3 / Piece
1 Piece (Min. Order) - DIN603 Round head Square Neck Carbon Stainless Steel Carriage Bolts m3 Grade a4-70 Carriage Bolt
Price: US $0.01-0.08 / Piece
10000 Pieces (Min. Order) - Top quality DIN603 SUS321 mushroom head square neck carriage bolt A4-80 carriage bolt with wing nut
Price: US $0.05-0.65 / Piece
2000 Pieces (Min. Order) - GB5787 Stainless Steel Hexagon flange bolt
Price: US $0.01-10 / Piece
1000 Pieces (Min. Order) - M3 M4 M5 M6 M8 astm a325 316l Stainless steel hex bolts a2-70
Price: US $0.01-0.5 / Piece
1000 Pieces (Min. Order) - stainless steel bolt and screw and nut stainless steel fasteners
Price: US $0.004-165 / Piece
1 Piece (Min. Order) - High-quality M6 x 40mm 5mm Eye Inner Dia 304 Stainless Steel Swing Bolt
Price: US $0.1-1 / Piece
500 Pieces (Min. Order) - competitive price stainless steel m19 hex flange bolt a2 a4
Price: US $0.01-0.15 / Piece
1 Piece (Min. Order) - din933 din931 stainless steel 304 316 a2-70 a4-80 hex screw hex head bolt
Price: US $0.01-1 / Piece
1 Piece (Min. Order) - carriage bolt DIN603 M10*30 A4-70 in China from PDM
Price: US $0.01-0.5 / Piece
10000 Pieces (Min. Order) - Stainless Steel A4-70 Countersunk Head Steelwork Expansion Anchor Bolt
Price: US $6.5-6.8 / Pieces
2000 Pieces (Min. Order)
Find A4 70 Bolt Material Chemical Composition and Equivalent here
Packing of A4-70 Stainless Steel Bolts
