
ASME SA194 Gr 2H Heavy Hex Nuts and Washer Manufacturer in india in custom size
ASTM A194 Grade 2H Nut is a high tensile nut made up of carbon steel. The material has high strength and corrosion resistance. Viha Steel & Forging is a leading manufacturer of these astm a194 grade 2h heavy hex nuts and other types of nuts. The specification is for internally threaded fasteners for high strength made of carbon steels.
The material has carbon, manganese, phosphorus, sulfur and silicon in the composition. There are different types of these fasteners such as the astm a194 grade 2h washer and nuts in this specification which are produced by hot forging, cold forging or machining. The heat treated bar stock of the a194 2h material is used to produce these nuts with the specific hardness, heat treatment and chemical composition. The nuts can range from ¼ inches to 1 ½ inches in nominal size with the number of threads per inches ranging from 8 to 20.
The Brinell hardness of the ASTM A194 Grade 2H Hex Nuts and others range from 212 to 327BHN depending on the nut size. The quenched and tempered heat treatment is applied at 455 degrees Celsius. There are different types such as the grade 2h coupling nuts which are used to couple two components together. The tensile strength of the nuts varies from 150ksi to 175ksi. As a leading manufacturer, we produce the nuts in all dimensions, shapes and types. Please feel free to contact us for more information on the different types of sa 194 grade 2h nuts and the pricing.
ASTM A194 Grade 2H Nuts |
Price |
Grade A194 2H Square Nut |
US$ 0.15-US$ 25.00 / Piece |
A194 2H finish hex nut |
US$ 0.40-US$ 0.42 / Piece |
ASTM Gr 8 A194 2H Heavy Hex Nut B 18.2.2 |
US$ 0.02-US$ 0.05 / Piece |
Element |
Carbon Steel |
---|---|
CompositionA, % | |
Carbon | 0.15 min |
Manganese | 1.00 max |
Phosphorus | 0.04 max |
Sulfur | 0.05 max |
Silicon | 0.40 max |
Standards |
Designation |
---|---|
ASTM |
A194 2H: Quenched & Tempered Carbon Steel Heavy Hex Nuts. |
Dimensions |
ASME B18.2.1, B18.3 |
---|---|
Melt Origin |
South America/East Europe/Japan/Korea/ |
Product Origin |
Made in India |
Threads Configuration |
ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads |
ASTM A194 Grade 2H Nuts Certification |
Dual Certified As per ASTM & ASME Codes |
Additional Certifications |
PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
Mandatory Requirements |
Free from Mercury & Radioactive Contamination |
Additional Requirements |
NACE MR0103 / MR0175 / ISO 15156 Compliance |
- The main difference between 2H and 2HM nuts is in the testing. 2H nuts only require a hardness test on a small sample, 2HM nuts require 100% of nuts to be hardness tested. The tests for 2HM nuts must also take into consideration 3 additional things during testing
- Grade 2H nuts have a higher proof load requirement
Suppliers of a194 2h material, Check sizes & updated price list of ASTM A194 Grade 2H Hex Nuts and Flat Washer




Grade, Size, Diameter |
Completed Nuts | Sample Nut After Heat Treatment | |||
---|---|---|---|---|---|
Brinell Hardness, BHN |
Rockwell Hardness | Brinell Hardness, BHN, min |
Rockwell Hardness, HRB, min |
||
HRC | HRB | ||||
2H, To 1-1⁄2 Inch, inclusive | 248 - 327 | 24 - 35 | ... | 179 | 89 |
2H, Over 1-1/2" Inch. | 212 - 327 | 35 max | 95 min | 147 | 79 |
Heat Treatment: Grade 2H shall be quenched and tempered at a temperature of at least 850 °F [455 °C].
Specification |
Material |
Nominal Size, In. |
Tempering Temp. °F |
Proof Load Stress, ksi |
Hardness Rockwell |
See Note |
|
---|---|---|---|---|---|---|---|
Min |
Max |
||||||
ASTM A194 Grade 2H Nuts |
Medium Carbon Steel, Quenched and Tempered |
1/4 - 4 |
1000 |
175 |
C24 |
C38 |
1,2 |
Nominal Size, Inch. | Threads Per Inch | Proof Load, lbf | |
---|---|---|---|
Heavy HexA | HexB | ||
1/4 | 20 | 5 570 | 4 770 |
5/16 | 18 | 9 170 | 7 860 |
3/8 | 16 | 13 560 | 11 620 |
7/16 | 14 | 18 600 | 15 940 |
1/2 | 13 | 24 830 | 21 280 |
9/16 | 12 | 31 850 | 27 300 |
5/8 | 11 | 39 550 | 33 900 |
3/4 | 10 | 58 450 | 50 100 |
7/8 | 09 | 80 850 | 69 300 |
01 | 08 | 106 000 | 90 900 |
1-1/8 | 08 | 138 200 | 118 500 |
1-1/4 | 08 | 175 000 | 150 000 |
1-3/8 | 08 | 215 800 | 185 000 |
1-1/2 | 08 | 261 100 | 223 800 |
A: Based on proof stress of 175 000 psi.
B: Based on proof stress of 150 000 psi.
Grade Identification Markings | Specification | Material | Nominal Size, In. | Tempering Temp. °F | Proof Load Stress, ksi | Hardness Rockwell | See Note | |
---|---|---|---|---|---|---|---|---|
Min | Max | |||||||
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ASTM A194 Grade 2H | Medium Carbon Steel, Quenched and Tempered | 1/4 - 4 | 1000 | 175 | C24 | C38 | 1,2 |
Specialized in grade 2h coupling nuts, Check astm a194 grade 2h vs grade 7 Difference
**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 |
Philippines, Belgium, Indonesia, Dammam -KSA | Heavy Duty Hex Nut, ASTM A194/A194m and ASME SA194/SA194m, DIN834 Grade 2h, Hot DIP Galvanized |
Europe, Thailand, France, Qatar | ASTM A194 2h Heavy Hex Nut |
Thailand, Malaysia, Germany, Czechia | Nuts 1/2 X 3/4 Bolt and 15mm A563 Dh Gr Heavy Hex Nut ASTM A194 Grade 2h |
Bangladesh, Finland, USA, Malaysia | Stainless Steel ASTM A194 Grade 2h Heavy Type PTFE Hex Nut Blue Xylan |
Kuwait, Brazil, Saudi Arabia (KSA), South Africa | Grade 2h ASTM A194 Heavy Hex Nuts with Black Finish |
Bahrain, Singapore, South Africa | ASTM A194 Heavy Hex Grade 2h Nut |
UK, Nigeria, Australia, Philippines | Heavy Hex Nut ASTM A194 Grade 2h Self Color |
Hong Kong, UAE, Malaysia, Oman | Carbon Steel Black Heavy Hex Structural Nut ASTM A194 Grade 2h |
Iran, Singapore, Italy, Chile | Black Zinc Plated DIN934 A194 2h Hex Nut in Stock |
Norway, Malaysia, Turkey, United Arab Emirates (UAE) | ASTM A194 Grade 2h Hot DIP Galvanized Heavy Hexagon Nut |
Russia, Dubai, Malaysia, Netherlands | ASTM A194 2h Heavy Hex Nuts Stainless Steel 304 316 |
Mexico, UK, Spain, Egypt | ASTM A194 Grade 2h Hot DIP Galvanized Heavy Hex Nut |
Malaysia, UAE, Europe, United Kingdom -UK | High Strength Nuts of ASTM A194 Grade 2h |
Poland, Ellington -United States, Canada, UK | Heavy Hex Nuts ASTM A194 Grade 2h/2hm Plain Finish |
ASTM A194 Grade 2H Nuts 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. |
Find your choice of sizes from our ASME SA 194 Gr 2H Heavy Hex Nut and Hex Head Nuts stock
ASTM A194 Grade 2H Nuts 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 |
Astm A194 2H Heavy hex Nuts | Asme Sa 194 Grade 2H Square Nuts |
Astm A194 2H Bolting Nuts | Asme Sa 194 Grade 2H Heavy hex Nuts |
Grade 2H Hexagon High Nuts | Grade 2H Heavy hex Nuts |
Astm A194 2H Square Nuts | Astm A194 2H Hexagon High Nuts |
A194 Grade 2H Hexagon High Nuts | A194 Grade 2H Hex Nuts |
Sa 194 Grade 2H Bolting Nuts | Asme Sa 194 Grade 2H Heavy nuts |
A194 Grade 2H Bolting Nuts | A194 Grade 2H Heavy nuts |
Asme Sa 194 Grade 2H Heavy nuts | Asme Sa 194 2H Hexagon Nut |
Astm A194 2H Hexagon Nut | Asme Sa 194 Grade 2H Bolting Nuts |
Astm A194 2H Heavy nuts | Grade 2H Square Nuts |
Sa 194 Grade 2H Hex Nuts | Grade 2H Heavy hex Nuts |
Asme Sa 194 Grade 2H Bolting Nuts | Sa 194 Grade 2H Square Nuts |
Asme Sa 194 2H Heavy hex Nuts | Grade 2H Hex Nuts |
Get complete information about A194 gr 2h nut dimensions, Composition, Equivalent online