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ASTM A194 Grade 8M Nuts

Manufacturer of SA 194 8M Class 2 Heavy Hex Nuts in India, Provide High Temperature Services


ASTM A194 Grade 8m Nuts


The strength of the ASTM A194 Grade 8M Washer and other fasteners is 223 BHN in Brinell hardness score. The size characteristics of fasteners extend from metric size M02 to metric size M160. ASTM A194 Grade 8M Heavy Hex Nuts includes the size range of M3 – M200mm and standard by DIN,ISO,JIS,GB AND OTHER INTERNATIONAL STANDARD.

ASTM A194 Grade 8M Nuts Manufacturer in India, Strain Hardened Nut is harder. The material can be strained hardened as the heat treatment method to achieve the maximum hardness. This grade of fasteners and the ASTM A194 gr 8m equivalent grades are used in the kitchen appliances, sinks, food processing machineries, milk processing units and in the beer brewing industrial applications.

Regal Sales Corporation is a leading manufacturer and supplier of the different types of SA 194 Gr 8M Nut products in different dimensions. Please feel free to contact us for more information on the different types of A194 8m stainless steel nuts and their prices.


ASTM A194 Grade 8M Nuts

ASTM A194 Grade 8M Nuts

ASTM A194 Gr. 8M Strain Hardened Nut

ASTM A194 Gr. 8M Strain Hardened Nut

ASTM A194 Grade 8M Washer

ASTM A194 Grade 8M Washer


Table of Content


Flange types


What is ASTM A194 Grade 8M Nuts ?


ASTM A194 Grade 8M nuts are high-quality fasteners made from austenitic stainless steel, designed to offer excellent resistance to corrosion, durability, and strength in high-pressure and high-temperature environments. ASTM A194 Grade 8M Nuts Manufacturer in India , These nuts are widely used in industries such as oil and gas, petrochemical, chemical, marine, and power generation.

We are a leading ASTM A194 Grade 8M Nuts supplier in India, delivering high-quality products to the United States, South Africa, UAE, Kenya, Italy, Oman, Spain, Qatar, and Germany.


Supplier of ASME SA 194 Gr. 8M Hex Nuts in Mumbai , used in High-temperature Environments, Refer Dimension Chart


Specifications of SA194 Grade 8M Nuts


Size

ASTM A194 Grade 8m Nuts Sizes

  • Length: 12 - 1200MM
  • Imperial Sizes: 1/4''– 4’’
  • Metric Size: M10 - M100
Certification

Certification

  • Test Reports
  • Third-Party Inspection Reports
  • Material Certificate
  • Mill Test Certificate (MTC)
Benefits

Benefits

  • High Strength and Durability
  • Long Service Life
  • Compatibility
  • Wide Range of Sizes and Finishes

Documentation

Documentation

  • Certificate of Compliance
  • Material Test Report (MTR)
  • Technical Datasheet (TDS)
Cutting Methods

Cutting Methods

  • Punching and Stamping
  • Thread Cutting
  • Lathe Turning
Disadvantages

Disadvantages

  • Risk of Over-Tightening
  • Compatibility Issues
  • Manufacturing Complexity

Neck type

Neck type

  • Oval
  • Hex, Square
  • Triangular
  • Knurled
threads

Threads Types

  • METRIC
  • BSF, UNC
  • UNF
  • BSW
Head Types

Head Types

  • Round,Flat
  • Hex, Square
  • T-head & Triangular
  • Hex flange

finish

Finishing

  • Zinc , black oxide, BZP
  • Hot Dip Galvanised (HDG), Geometry, Dacroment
  • Anodizing, nickel plated, plated zinc-nickel
Production process

Production process

  • Heat Treatment
  • Surface Finishing
  • Packaging
  • Material Selection
coating

Surface Coating

  • Zinc Coating
  • Phosphate Coating
  • Black Oxide Coating
  • Passivation

Testing Methods

Testing Methods

  • Impact Test
  • Proof Load Test
  • Elongation Test
  • Thread Fit Test
Packaging

Packaging Methods

  • Vacuum Sealing
  • Clamshell Packaging
  • Shrink-Wrapping
  • Palletized Packaging
Applications

Applications

  • Aerospace and Defense
  • Mining and Excavation
  • Marine Industry
  • Power Generation


Types of A194 Grade 8M Nuts


A194 Grade 8M Coupling Nut

A194 Grade 8M Coupling Nut

SA194 Grade 8M Hex Nut

SA194 Grade 8M Hex Nut

SA194 Grade 8M Nuts

SA194 Grade 8M Nuts

A194 Grade 8M Lock Nut

A194 Grade 8M Lock Nut

8M A194 316 Stainless Square Nuts

8M A194 316 Stainless Square Nuts

ASTM A194 Grade 8M Flange Nuts

ASTM A194 Grade 8M Flange Nuts

Gr. 8M J Wing Nuts

Gr. 8M J Wing Nuts

ASTM A194 Grade 8M Nylock Nuts

ASTM A194 Grade 8M Nylock Nuts

A194 Grade 8M Heavy Hex Nuts Dimensional Table


A194 Grade 8M Heavy Hex Nuts Dimensional Table


Dia G
 F
 H
Width of Corners Width of Flats Thick
min max Basic min max Basic min max
2.0000 2 3.449 3.608 3-1/8 3.125 3.025 1-31/32 1.925 2.013
3.5000 3-1/2 5.928 6.207 5-3/8 5.375 5.200 3-7/16 3.370 3.506
4.0000 4 6.755 7.073 6-1/8 6.125 5.925 3-15/16 3.862 4.014
.3125 5/16 .622 .650 9/16 .562 .546 19/64 .280 .314
1.5000 1-1/2 2.622 2.742 2-3/8 2.375 2.300 1-15/32 1.433 1.505
.7500 3/4 1.382 1.443 1-1/4 1.250 1.212 47/64 .710 .758
.4375 7/16 .830 .866 3/4 .750 .728 27/64 .403 .441
.5625 9/16 1.037 1.083 15/16 .938 .909 35/64 .526 .568
1.2500 1-1/4 2.209 2.309 2 2.000 1.938 1-7/32 1.187 1.251
.6250 5/8 1.175 1.227 1-1/16 1.062 1.031 39/64 .587 .631
2.7500 2-3/4 4.688 4.907 4-1/4 4.250 4.112 2-45/64 2.647 2.759
3.0000 3 5.102 5.340 4-5/8 4.625 4.475 2-61/64 2.893 3.013
1.0000 1 1.796 1.876 1-5/8 1.325 1.575 63/64 .956 1.012
.3750 3/8 .763 .794 11/16 .688 .669 23/64 .341 .377
1.1250 1-1/8 2.002 2.093 1-13/16 1.812 1.756 1-7/64 1.079 1.139
.8750 7/8 1.589 1.660 1-7/16 1.438 1.394 55/64 .833 .885
.2500 1/4 .556 .577 1/2 .500 .488 15/64 .218 .250
.5000 1/2 .969 1.010 7/8 .875 .850 31/64 .464 .504

8M A194 316 Stainless Heavy Hex Nuts Dimensions


Dia (D) Thread Len (T) Body Dia (D) Head Height (H) Across Of Corners © Across Of Flats (F)
> 6” < 6” min max min max min max min max
1 3/4 4 3.75 1.716 1.785 1.054 1.196 3.035 3.175 2.662 2.75
3 6.5 6.25 2.961 3.081 1.815 2.06 5.102 5.34 4.475 4.625
1/2 1.5 1.25 0.482 0.515 0.302 0.364 0.969 1.01 0.85 0.875
2 3/4 6 5.75 2.711 2.827 1.632 1.869 4.688 4.907 4.112 4.25
1 1/4 3 2.75 1.223 1.277 0.749 0.876 2.209 2.309 1.938 2
5/8 1.75 1.5 0.605 0.642 0.378 0.444 1.175 1.227 1.031 1.062
1 1/2 3.5 3.25 1.47 1.531 0.902 1.036 2.622 2.742 2.3 2.375
2 1/2 5.5 5.25 2.461 2.559 1.479 1.708 4.275 4.474 3.75 3.875
1 3/8 3.25 3 1.345 1.404 0.81 0.94 2.416 2.526 2.119 2.188
3/4 2 1.75 0.729 0.768 0.455 0.524 1.383 1.443 1.212 1.25
1 1/8 2.75 2.5 1.098 1.149 0.658 0.78 2.002 2.093 1.756 1.812
2 1/4 5 4.75 2.214 2.305 1.327 1.548 3.862 4.041 3.388 3.5
1 2.5 2.25 0.976 1.022 0.591 0.7 1.796 1.876 1.575 1.625
7/8 2.25 2 0.852 0.895 0.531 0.604 1.589 1.66 1.394 1.438
2 4.5 4.25 1.964 2.039 1.175 1.388 3.449 3.608 3.025 3.125

SA194 Grade 8M Nut Size Chart


Dia*
(MM)		 NUT SIZE
(MM)		 HEIGHT
(MM)
HEX NUT JAM NUT NYLOCK NUT
10 6 5 3.2 6
27 18 15 9 18.5
4 2 1.6 1.2 -
22 14 11 7 14
5.5 3 2.4 1.8 4
19 12 10 6 12
8 5 4 2.7 5
30 20 16 10 20
17 10 8 5 10
7 4 3.2 2.2 5
24 16 13 8 16
13 8 6.5 4 8
5 2.5 2 1.6 -
11 7 5.5 3.5 -


Get ASTM A194 Grade 8M Washer with Different Sizes, Grades, Refer Equivalent Chart


Equivalent Grade of ASTM A194 Grade 8M Nuts


Material Japanese
JIS		 Old British Swedish
SS		 Euronorm UNS
No
BS En No Name
SS 316 SUS 316 316S31 58H, 58J 2347 1.4401 X5CrNiMo17-12-2 S31600

SA 194 Gr 8M Nut & Stainless Steel Grade 8m Nuts Provides Excellent Strength and Durability, Check Mechanical Properties.

Mechanical Properties of ASTM A194 Gr 8m Nuts


Description of Image 2

Melting Point

1371°C to 1400°C

Description of Image 1

Elongation

30%

Description of Image 2

Yield Strength

240 MPa

Description of Image 1

Tensile Strength

550 MPa



Torque Chart For SA194 Grade 8M Metric Nuts


Bolt Size (mm) Lubricated Torque (ft-lb) Torque (ft-lb) Torque (Nm) Lubricated Torque (Nm)
M24 354.5 443 600 480
M6 5.6 7.0 9.5 7.6
M48 1,888 2,365 3,200 2,560
M8 13.3 17 23 18
M36 1,060.5 1,325 1,800 1,440
M10 27.3 34 46 37
M22 266.5 332 450 360
M12 48 60 82 65
M30 708.5 885 1,200 960
M16 111.5 140 190 150
M42 1,478 1,850 2,500 2,000
M20 206.5 258 350 280

A194 Grade 8M Hex Nuts Physical Properties


Property Typical Value
Density 7.85 g/cm³ (7850 kg/m³)
Thermal Conductivity 50 W/m·K
Specific Heat 0.46 J/g·°C (at 25°C)
Electrical Resistivity ~0.00065 Ω·m
Elastic Modulus 200 to 210 GPa

Stockist of A194 Grade 8M Heavy Hex Nuts Excellent Corrosion Resistance, View Chemical Composition

Chemical Composition of ASME SA 194 Gr 8 Nut


11 – 14

Mn
0.15 max

Carbon
1 max

Si
0.06 max

Ph
0.5 – 2.5

Ni
0.03 max

S
16.5 – 19.5

Cr


SA194 Grade 8M Hex Jam Nuts Weight Chart


Nut Weight Chart
Pounds (LBS) Per 100 Pieces
SIZE HEAVY
SQUARE		 HEAVY HEX HEAVY HEX
JAM		 FINISHED
JAM		 FINISHED
HEX		 SQUARE
1 3/4 ... 204.000 114.000 100.000 151.000 ...
3 3/4 ... 1812.000 1005.000 ... ... ...
1/2 7.870 6.540 4.000 2.620 3.750 5.780
17/8 ... 241.000 134.000 ... ... ...
2 1/4 ... 419.000 227.000 ... ... ...
5/8 14.300 11.900 6.960 4.930 7.330 10.800
2 3/4 ... 738.000 429.000 ... ... ...
5/8 14.300 11.900 6.960 4.930 7.330 10.800
2 1/2 ... 564.000 332.000 ... ... ...
3/4 23.500 19.300 11.000 7.700 11.900 15.400
7/8 36.200 29.700 16.700 12.000 19.000 24.500
3 1/2 ... 1526.000 851.000 ... ...
1 51.500 42.500 23.500 17.600 28.300 36.300
3 ... 950.000 545.000 ... ... ...
1 1/8 72.400 59.200 32.400 24.700 40.300 52.500
2 ... 299.000 165.000 140.000 224.000 ...
1 1/4 95.500 78.600 45.800 36.100 54.300 70.600
4 ... 2180.000 1200.000 ... ... ...
1 3/8 125.000 102.000 59.300 47.900 73.000 94.500

Delivery Time Table of A194 Grade 8M Square Nuts


Country Name Delivery Time
Saudi Arabia
10 days
South Africa
25-30 days
Oman
12 days
Egypt
18 days
Singapore
7 days
Turkey
21 days
Malaysia
10 days
UAE
7 days
Jordan
21 days

What is the Difference Between ASTM A194 Grade 8m and Grade 8 Nuts ?


Difference ASTM A194 Grade 8m and Grade 8 Nuts


Feature Grade 8M Grade 8
Marking "8M" "8"
Applications Harsh environments General environments
Corrosion Resistance High (marine/chemical) Moderate
Cost Higher Lower
Material Type 316 Stainless Steel Type 304 Stainless Steel

Are Astm A194 Grade 8m Nuts Environmentally Friendly ?


Yes, they are made of stainless steel, which is 100% recyclable. This makes them an environmentally sustainable choice for industrial applications.


What Quality Assurance Measures Are in Place for Astm A194 Grade 8m Nuts ?


  • ➤Compliance Standards
  • ➤Lot Traceability
  • ➤Coating Testing
  • ➤Load and Stress Testing
  • ➤Certification



Can Astm A194 Grade 8m Nuts Be Used in Cryogenic Applications ?


  • ➤ Confirm with manufacturer for suitability
  • ➤ Risk of stress corrosion cracking in cryogenic environments.
  • ➤ Check low-temperature toughness .
  • ➤ Ensure mechanical strength .
  • ➤ Consider alternative materials .



ASTM Fasteners