A4-70 Bolts

Stainless Steel 316 Fasteners, A4-80 Bolts And A4-70 Fasteners Supplier In India

A4-70 Bolts

What is the difference between A4 70 Bolt and A4 80 Bolt?

The A470 and A4 80 bolts are stainless 316 or 316l grades specifications. The bolts are designed to hold different equipment efficiently in the system. The major difference between both these bolts is their strength. The A470 bolt has a tensile strength of 700mpa, while the A4 80 bolt is designed with a tensile strength of 800mpa.  

Benefits of A4-70 Stainless Steel Bolts

The A4-70 stainless steel bolts are designed to connect different equipment firmly. These bolts possess superior strength and can support different applications. The SS bolts have excellent corrosion resistance properties and work well across oxidative conditions. The A4-70 SS bolts have good tolerance to pitting and have enhanced machinability. The bolts have resistance to acetic, sulfuric, and sulfurous conditions due to the molybdenum content. They have improved creep resistance and are very durable. The austenitic structure of these bolts gives them excellent toughness in cryogenic temperatures. 

Why A4-70 Fasteners is use for Oil and Gas industry

The A4-70 fasteners are designed with a primary constitution of chromium, nickel, and molybdenum. This makes the fasteners a good choice to work in corrosive affluents and oxidative reducers. The fasteners have high performance possessing excellent mechanical properties. These devices have higher resistance to chlorides and possess a higher melting point. It also has good strength and is very durable making them a viable option in harsh environments. 

Cost Difference of A4-70 Bolt And Nut in india and Singapore

The price of an A4-70 bolt and nut is based on their size, thickness, and other specification of the grade. The price of the A4-70 bolt and nut in India is $0.58 per piece. Similarly, the price of bolt and nut in Singapore is $0.95 per piece.

Check A4-70 Nut Dimensions, A4 80 Bolt Shear Strength And A4 70 Bolt Specification, Torque And Size Chart

A4 70 Bolt Specification

Hex Head Bolts (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

Buy A4-70 Grade Stainless Steel Hex Bolts And Nuts In Metric Sizes As Per American Standard Asme B18.6.3

A4-80 Bolt Dimensions

A4-80 Bolt Dimensions
Bolt Size A (max) B C (min) D E F
Thread Length
for Bolts 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

Stainless Steel 316 Fasteners Types

A4 70 Bolts

A4 70 Bolts

A4 70 Hex Head Bolt

A4 70 Hex Head Bolt

A470 Screw

A470 Screw

A4 70 Stainless Steel Bolt

A4 70 Stainless Steel Bolt

Apl A470 Screw

Apl A470 Screw

A4 70 Hex Cap Screw

A4 70 Hex Cap Screw

A4 80 Bolts

A4 80 Bolts

A4-70 Fasteners

A4-70 Fasteners

A4 70 Washer

A4 70 Washer

A4-80 Threaded Rod

A4-80 Threaded Rod

A4 70 Nut

A4 70 Nut

View A4-70 Stainless Steel Bolt Tensile Strength, A4-70 Screw Properties And SS 316 Nut Bolt Price List

A4-70 Fasteners Price

Description Price in India Price in USD Price in Euro Price in Saudi Riyal Price in Ringgit
STAINLESS STEELS BOLTS,DIN 931 A4-70 M 20 X 280 HHB SS316. ₹ 200/ NOS $ 2.51 € 2.52 SAR 9.44 RM 11.38
WASHERS,STAINLESS STEELS,DIN 931 A4-70 M 18 X 150 HHB SS316. ₹ 108/ NOS $ 1.36 € 1.37 SAR 5.11 RM 6.16
BOLTS THREADED HB M12X110 DIN931 SS316 A4-70 ₹ 215/ KGS $ 2.70 € 2.71 SAR 10.15 RM 12.24

A4 70 Bolt Torque

Thread Tightening Torque for property class
70 50 80
M1.6 0.2 0.15 0.24
M2.5 0.9 0.6 0.96
M2 0.4 0.3 0.48
M3 1.6 1.1 1.8
M5 7.8 5.5 8.8
M4 3.8 2.7 4.3
M6 13 9.3 15
M16 290 210 330
M10 65 46 74
M8 32 23 37
M12 110 80 130
Check A4 70 Grade Stainless Steel Hex Bolt Properties, A4-70 Stainless Steel Material In M3 To M30 Sizes At Factory Price In Mumbai

Chemical Composition Of A4-70 Nut

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 -

A4-80 Hex Bolt Custom Drive Style

A4-80 Hex Bolt Custom Drive Style

A4-70 Grade Stainless Steel Hex Bolts 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

Physical Properties Of A4-70 Screw

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 15.9 16.2 17.5 16.3

A4-70 Stainless Steel Bolt 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 Grade Stainless Steel Hex Bolts Equivalent

Bolts Grade UNS
No
Old British Euronorm Swedish
SS
Japanese
JIS
BS En No Name
316 S31600 316S31 58H, 58J 1.4401 X5CrNiMo17-12-2 2347 SUS 316
316L S31603 316S11 1.4404 X2CrNiMo17-12-2 2348 SUS 316L
316H S31609 316S51

Check our reference of material in these countries

Consolidated Contractors Company (Ccc / Ccic) -saudi Arabia

Consolidated Contractors Company (Ccc / Ccic) -saudi Arabia

ADCO - Bab Gas Compression Project - Phase 2(UAE)

ADCO - Bab Gas Compression Project - Phase 2(UAE)

Kuwait National Petroleum Company (KNPC)-Kuwait

Kuwait National Petroleum Company (KNPC)-Kuwait