Suppliers and manufacturer of Asme SA 194 Gr 8M Heavy Hex Nuts and washer with Exceptional sizes, standard, and Quality
ASTM A194 Grade 8M Nuts range from M02 to M160 sizes and the length ranges from 3mm to 200mm. Viha Steel & Forging is a leading manufacturer of the different types of the ASME SA 194 Gr 8M Hex Nut fasteners. The material used for the making of these fasteners is made up of carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel and molybdenum in the composition.
There are different fasteners such as the ASTM A194 Grade 8M Washer and other internally threaded fasteners. This specification covers the forged and machined internally threaded fasteners that are used in high pressure and high temperature applications. The SA 194 Gr 8M Nut gets the strength, corrosion resistance and the hardness from this material composition. The minimum tensile strength is 550MPa, the minimum yield strength is 240MPa and the elongation is 30% for the ASTM A194 Grade 8m Class 2 Nuts and the class 1 nuts.
The class 2 has higher hardness than the class 1 because of the strain hardening on top of the carbide solution treatment. The hardness of the A194 Grade 8M Heavy Hex Nuts ranges up to 223 BHN. The fasteners can be used in high temperature and high pressure applications such as the petroleum, oil and gas, power generation and in heat exchanger and boiler applications. Please feel free to contact us for more information on the different types such as the Asme Sa194 Grade 8m nut and others with pricing.
Table Of Content
| Grade & Type | Brinell Hardness | Rockwell Hardness | |
|---|---|---|---|
| C Scale | B Scale | ||
| 8M | 126-300 | 32 max | 60 min |
Material |
Specification |
Standards | Size |
Length |
ASTM A194 GR.8M Hex Nuts
|
IS BS ASTM |
DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 |
3 mm to 200 mm |
Standards |
Designation |
|---|---|
ASTM |
A194 Grade 8M: Stainless AISI 316 Heavy Hex Nuts. |
| Specification | Material | Nominal Size, In. | Tempering Temp. °F | Proof Load Stress, ksi | Hardness Rockwell | |
| Min | Max | |||||
| ASTM A194 Grade 8M | Stainless AISI 316 | 1/4 - 4 | - | 80 | 126 | 300 |
Melt Origin |
South America/East Europe/Japan/Korea/ |
|---|---|
Dimensions |
ASME B18.2.1, B18.3 |
Product Origin |
Made in India |
Certification |
Dual Certified As per ASTM & ASME Codes |
Threads Configuration |
ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads |
Additional Certifications |
PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
Additional Requirements |
NACE MR0103 / MR0175 / ISO 15156 Compliance |
Mandatory Requirements |
Free from Mercury & Radioactive Contamination |
ASTM A194 Grade 8M Nuts |
Price |
black oiled ASTM A194 GR.8M Heavy Hex Nut |
US$ 0.01-US$ 0.02 / Piece |
ASTM DIN914 A194 grade 8M hexagon nut with grade 4.8M 8M.8M |
US$ 0.01-US$ 2.00 / Piece |
Stock ASTM A194 GR 8M Heavy Hex Bolt |
US$ 0.01-US$ 1.00 / Piece |
A194 grade 8M ansi b18M.2.2 hex nut |
US$ 0.01-US$ 3.00 / Piece |
Always check ASTM A194 Gr. 8M Class 2 Strain Hardened Nut size and weight before buying material
| Grade Identification Markings | Specification | Material | Nominal Size, In. | Tempering Temp. °F | Proof Load Stress, ksi | Hardness Rockwell | See Note | |
|---|---|---|---|---|---|---|---|---|
| Min | Max | |||||||
 |
ASTM A194 Grade 8M | Stainless AISI 316 | 1/4 - 4 | - | 80 | 126 | 300 | 4 |
SA 194 Gr 8m Heavy Hex Nuts
ASTM A194 Grade 8M Nuts
sa 194 8m Class 2 Hex Nuts 
astm a194 8m Washer
| Tensile Strength/Ultimate Tensile Stress (UTS) – (Mpa) | Yield Strength/Proof Stress(0.2% Offset) (YS) – (Mpa) | Elongation in 4D (El) | Reduction | Hardness – (BHN) |
| 550 | 240 | 30 | 40 | 223 |
| Grade | Material | UNS Number |
C, % | Mn, % | Ph, % | S, % | Si, % | Cr, % | Ni, % | Mo, % | Ti, % | Cb & Ta, % | N, % | Other Elements, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8M | Type 316 | S31600 | 0.080 | 2.000 | 0.045 | 0.030 | 1.000 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | - | - | - | - |
| STANDARD | Grade | Designation |
| ASTM A194 | 8M | AISI 316 Stainless Steel. |
Nut Size (mm) |
Diameter* (mm) |
Height (mm) |
||
|---|---|---|---|---|
Hex Nut |
Jam Nut |
Nylock Nut |
||
2 |
4 |
1.6 |
1.2 |
- |
2.5 |
5 |
2 |
1.6 |
- |
3 |
5.5 |
2.4 |
1.8 |
4 |
4 |
7 |
3.2 |
2.2 |
5 |
5 |
8 |
4 |
2.7 |
5 |
6 |
10 |
5 |
3.2 |
6 |
7 |
11 |
5.5 |
3.5 |
- |
8 |
13 |
6.5 |
4 |
8 |
10 |
17 |
8 |
5 |
10 |
12 |
19 |
10 |
6 |
12 |
14 |
22 |
11 |
7 |
14 |
16 |
24 |
13 |
8 |
16 |
18 |
27 |
15 |
9 |
18.5 |
20 |
30 |
16 |
10 |
20 |
* This is the diameter across the flats. It is also the size of wrench to use. |
||||
If you need A194 Gr 8m Material We can supply in nearly any size, no matter how small the size or quantity. view chemical composition and mechanical properties
| Size | Finished Hex Nuts | Heavy Hex Nuts | Finished Jam Nuts | Heavy Hex Jam Nuts | Square Nuts | Heavy Square Nuts |
| 1/2" | 3.75 | 6.54 | 2.62 | 4.00 | 5.78 | 7.87 |
| 5/8" | 7.33 | 11.9 | 4.93 | 6.96 | 10.8 | 14.3 |
| 3/4" | 11.9 | 19.3 | 7.70 | 11.0 | 15.4 | 23.5 |
| 7/8" | 19.0 | 29.7 | 12.0 | 16.7 | 24.5 | 36.2 |
| 1" | 28.3 | 42.5 | 17.6 | 23.5 | 36.3 | 51.5 |
| 11/8" | 40.3 | 59.2 | 24.7 | 32.4 | 52.5 | 72.4 |
| 11/4" | 54.3 | 78.6 | 36.1 | 45.8 | 70.6 | 95.5 |
| 13/8" | 73.0 | 102 | 47.9 | 59.3 | 94.5 | 125.0 |
| 11/2" | 94.3 | 131 | 60.9 | 74.8 | 122 | 161 |
| 15/8" | 162 | 91.6 | ||||
| 13/4" | 151 | 204 | 100 | 114 | ||
| 17/8" | 241 | 134 | ||||
| 2" | 224 | 299 | 140 | 165 | ||
| 21/4" | 419 | 227 | ||||
| 21/2" | 564 | 332 | ||||
| 23/4" | 738 | 429 | ||||
| 3" | 950 | 545 | ||||
| 31/4" | 1194 | 651 | ||||
| 31/2" | 1526 | 851 | ||||
| 33/4" | 1812 | 1005 | ||||
| 4" | 2180 | 1200 |
Nominal Size or Basic Major Thread Diameter |
F |
G |
H |
||||||
Width Across Flats |
Width Across Corners |
Thickness |
|||||||
Basic |
Max |
Min |
Max |
Min |
Basic |
Max |
Min |
||
1/4 |
.2500 |
1/2 |
.500 |
.488 |
.577 |
.556 |
15/64 |
.250 |
.218 |
5/16 |
.3125 |
9/16 |
.562 |
.546 |
.650 |
.622 |
19/64 |
.314 |
.280 |
3/8 |
.3750 |
11/16 |
.688 |
.669 |
.794 |
.763 |
23/64 |
.377 |
.341 |
7/16 |
.4375 |
3/4 |
.750 |
.728 |
.866 |
.830 |
27/64 |
.441 |
.403 |
1/2 |
.5000 |
7/8 |
.875 |
.850 |
1.010 |
.969 |
31/64 |
.504 |
.464 |
9/16 |
.5625 |
15/16 |
.938 |
.909 |
1.083 |
1.037 |
35/64 |
.568 |
.526 |
5/8 |
.6250 |
1-1/16 |
1.062 |
1.031 |
1.227 |
1.175 |
39/64 |
.631 |
.587 |
3/4 |
.7500 |
1-1/4 |
1.250 |
1.212 |
1.443 |
1.382 |
47/64 |
.758 |
.710 |
7/8 |
.8750 |
1-7/16 |
1.438 |
1.394 |
1.660 |
1.589 |
55/64 |
.885 |
.833 |
1 |
1.0000 |
1-5/8 |
1.325 |
1.575 |
1.876 |
1.796 |
63/64 |
1.012 |
.956 |
1-1/8 |
1.1250 |
1-13/16 |
1.812 |
1.756 |
2.093 |
2.002 |
1-7/64 |
1.139 |
1.079 |
1-1/4 |
1.2500 |
2 |
2.000 |
1.938 |
2.309 |
2.209 |
1-7/32 |
1.251 |
1.187 |
1-3/8 |
1.3750 |
2-3/16 |
2.188 |
2.119 |
2.526 |
2.416 |
1-11/32 |
1.378 |
1.460 |
1-1/2 |
1.5000 |
2-3/8 |
2.375 |
2.300 |
2.742 |
2.622 |
1-15/32 |
1.505 |
1.433 |
1-5/8 |
1.6250 |
2-9/16 |
2.562 |
2.481 |
2.959 |
2.828 |
1-19/32 |
1.632 |
1.556 |
1-3/4 |
1.7500 |
2-3/4 |
2.750 |
2.662 |
3.175 |
3.035 |
1-23/32 |
1.759 |
1.679 |
2 |
2.0000 |
3-1/8 |
3.125 |
3.025 |
3.608 |
3.449 |
1-31/32 |
2.013 |
1.925 |
2-1/4 |
2.2500 |
3-1/2 |
3.500 |
3.388 |
4.041 |
3.862 |
2-13/64 |
2.251 |
2.155 |
2-1/2 |
2.5000 |
3-7/8 |
3.875 |
3.750 |
4.474 |
4.275 |
2-29/64 |
2.505 |
2.401 |
2-3/4 |
2.7500 |
4-1/4 |
4.250 |
4.112 |
4.907 |
4.688 |
2-45/64 |
2.759 |
2.647 |
3 |
3.0000 |
4-5/8 |
4.625 |
4.475 |
5.340 |
5.102 |
2-61/64 |
3.013 |
2.893 |
3-1/4 |
3.2500 |
5 |
5.000 |
4.838 |
5.774 |
5.515 |
3-3/16 |
3.252 |
3.124 |
3-1/2 |
3.5000 |
5-3/8 |
5.375 |
5.200 |
6.207 |
5.928 |
3-7/16 |
3.506 |
3.370 |
3-3/4 |
3.7500 |
5-3/4 |
5.750 |
5.562 |
6.640 |
6.341 |
3-11/16 |
3.670 |
3.616 |
4 |
4.0000 |
6-1/8 |
6.125 |
5.925 |
7.073 |
6.755 |
3-15/16 |
4.014 |
3.862 |
**All measurements in millimeters**
Nominal Size or Basic Major Thread Diameter |
F |
G |
H |
||||||
Width Across Flats |
Width Across Corners |
Thickness |
|||||||
Basic |
Max |
Min |
Max |
Min |
Basic |
Max |
Min |
||
1/4 |
.2500 |
7/16 |
.438 |
.428 |
.505 |
.488 |
7/32 |
.226 |
.212 |
5/16 |
.3125 |
1/2 |
.500 |
.489 |
.577 |
.557 |
17/64 |
.273 |
.258 |
3/8 |
.3750 |
9/16 |
.562 |
.551 |
.650 |
.628 |
21/64 |
.337 |
.479 |
7/16 |
.4375 |
11/16 |
.688 |
.675 |
.794 |
.768 |
3/8 |
.385 |
.365 |
1/2 |
.5000 |
3/4 |
.750 |
.736 |
.866 |
.840 |
7/16 |
.448 |
.427 |
9/16 |
.5625 |
7/8 |
.875 |
.861 |
1.010 |
.982 |
31/64 |
.496 |
.473 |
5/8 |
.6250 |
15/16 |
.938 |
.922 |
1.083 |
1.051 |
35/64 |
.559 |
.535 |
3/4 |
.7500 |
1-1/8 |
1.125 |
1.088 |
1.299 |
1.240 |
41/64 |
.665 |
.617 |
7/8 |
.8750 |
1-5/16 |
1.312 |
1.269 |
1.516 |
1.447 |
3/4 |
.776 |
.724 |
1 |
1.0000 |
1-1/2 |
1.500 |
1.450 |
1.732 |
1.653 |
55/64 |
.887 |
.831 |
1-1/8 |
1.1250 |
1-11/16 |
1.688 |
1.631 |
1.949 |
1.859 |
31/32 |
.999 |
.939 |
1-3/8 |
1.3750 |
2-1/16 |
2.062 |
1.994 |
2.382 |
2.273 |
1-11/64 |
1.206 |
1.138 |
1-1/2 |
1.500 |
2-1/4 |
2.250 |
2.175 |
2.598 |
2.480 |
1-9/32 |
1.ASTM A194 GR. 8 |
1.245 |
1-5/8 |
1.6250 |
2-7/16 |
2.438 |
2.356 |
2.815 |
2.686 |
1-25/64 |
1.429 |
1.353 |
1-3/4 |
1.7500 |
2-5/8 |
2.625 |
2.538 |
3.031 |
2.893 |
1-1/2 |
1.540 |
1.460 |
2 |
2.0000 |
3 |
3.000 |
2.900 |
3.464 |
3.306 |
1-23/32 |
1.763 |
1.675 |
2-1/4 |
2.2500 |
3-3/8 |
3.375 |
3.263 |
3.897 |
3.719 |
1-15/16 |
1.986 |
1.890 |
2-1/2 |
2.5000 |
3-3/4 |
3.750 |
3.625 |
4.330 |
4.133 |
2-5/32 |
2.209 |
2.105 |
2-3/4 |
2.7500 |
4-1/8 |
4.125 |
3.988 |
4.763 |
4.546 |
2-3/8 |
2.431 |
2.319 |
We have a large inventory of A194 8M Hex Nuts in almost all size, call us to know more about Dimensions, Ready stock and updated price list
Before you buy from India check is Supplier already supplied in your country or not
| Belgium, Dammam -KSA, Indonesia, Philippines | A194 Grade 8m Heavy Hex Nuts Stainless Steel 304 316 1/4-20 to 1.7/8 |
| Thailand, Qatar, France, Europe | ASME B18.2.2 A194 Grade 8m Heavy Hexagon Nuts |
| Malaysia, Czechia, Germany, Thailand | Nuts A194 Grade 8m, ASME B12.2.2 |
| Finland, Malaysia, USA, Bangladesh | Stainless Steel Hex Nuts A194 Grade 8/8m |
| Brazil, South Africa, Saudi Arabia (KSA), Kuwait | A194 Grade 8m Heavy Hex Nuts |
| South Africa, Singapore, Bahrain | SS304 A2-70 A4-80 SS316L / A194 Grade 8m Stainless Heavy Hex Nuts |
| Nigeria, Philippines, Australia, UK | Stainless Steel 304/316 Heavy Hex Nuts A194 Grade 8m |
| UAE, Oman, Malaysia, Hong Kong | A194 Grade 8m Heavy Hex Nuts Stainless Steel 304 316 9/16-12 |
| Singapore, Chile, Italy, Iran | A194 Grade 8m Heavy Hex Nuts Stainless Steel 304 316 1" |
| Malaysia, United Arab Emirates (UAE), Turkey, Norway | M8 M10 M12 Electric Galvanized Grade 8m Hex Nuts DIN 934 |
| Dubai, Netherlands, Malaysia, Russia | Grade 8m Black Nuts M12 M14 DIN 934 |
| UK, Egypt, Spain, Mexico | Hex Nuts DIN 934 ISO 4032 Grade 8m White Zinc Plated for Building |
ASTM A194 Gr 8M Nylock Insert Nuts |
ASTM A194 Grade 8M Nuts |
ASTM A194 Coupling Nuts |
A194 Square Nuts |
A194 Grade 8M Flange Nuts |
ASTM A194 Grade 8M Hex Nuts |
SS Grade 8M Lock Nuts |
SS Grade 8M Heavy Hex Nuts |
Stainless Steel Grade 8M T Nuts |
A194 Grade 8M Dome Nuts |
ISO Approved A194 Eye Nuts |
ASTM A194 Grade 8M Nuts |
ASTM A194 Hex Nuts |
A194 Grade 8M T But |
SA194 Nuts |
Stainless Steel Grade 8M Panel Nuts |
A194 Grade 8M Heavy Hex Nuts |
ASTM A194 Locking Nuts |
A194 Grade 8M Lock Nuts |
Grade 8M Panel Nuts |
Grade 8M Stainless Steel Washer |
Grade 8M Acorn Nuts |
Stainless Steel Grade 8M Wing Nuts |
A194 Grade 8M Panel Nuts |
find here SA 194 8M Specification, Torque and Equivalent table