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At GIC Fasteners, we take immense pride in being a premier manufacturer of Stainless Steel 904L Nuts, meeting the highest industry standards including DIN, ASTM, ISO, and BS. Our expertise lies in crafting top-quality fasteners that adhere to these rigorous specifications, ensuring reliability and performance in diverse applications. As a trusted name in the industry, we specialize in producing Stainless Steel 904L Nuts that not only exhibit exceptional corrosion resistance and durability but also comply with equivalent international standards. Discover excellence in fastening solutions with GIC Fasteners, your trusted partner for precision-engineered Stainless Steel 904L Nuts.
Experience unparalleled durability and corrosion resistance with our range of Stainless Steel 904L Nuts at GIC Fasteners. Crafted to perfection by our team of experts, these nuts are designed to excel in the most demanding environments. Engineered in adherence to esteemed standards such as DIN, ASTM, ISO, and BS, our Stainless Steel 904L Nuts are a testament to precision and reliability. Whether it’s for marine, chemical, or industrial applications, our fasteners offer exceptional performance, ensuring longevity and strength.
As industry leaders, GIC Fasteners takes pride in delivering fastening solutions that meet the highest quality benchmarks. Our commitment to excellence extends beyond the product – it’s a promise we uphold in every aspect of our service. For inquiries and orders, don’t hesitate to reach out to our dedicated team at sales@gicfasteners.com. Elevate your projects with Stainless Steel 904L Nuts that embody craftsmanship, resilience, and the GIC Fasteners guarantee.
| Specifications of 904L Nuts | ASTM A673 & ASME SA673 |
| Standard of SS 904L Nuts | DIN, ASTM, BS and all International Standards |
| Length of 904L Stainless Steel Nuts | 3 mm to 200 mm |
| 904L Stainless Steel Nuts Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Stainless Steel Grade | SS 904L Nuts |
| 904L Stainless Steel Nuts Type | Hexagon Nut, Hex Coupling Nut, Hex Nut, Square Nut, Hex Domed Cap Nuts, etc. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 904L | min. | – | – | – | – | – | 19.0 | 4.00 | 23.00 | 0.10 |
| max. | 0.20 | 2.00 | 1.00 | 0.045 | 0.035 | 23.0 | 5.00 | 28.00 | 0.25 | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 904L | 490 | 220 | 35 | 70-90 typical | – |
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 904L | N08904 | 904S13 | X1NiCrMoCu25-20-5 | 1.4539 | – | – | SUS 890L |
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 |
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 |
| Size | Heavy Hex | Finished Hex | Heavy Hex Jam | Finished Jam | Heavy Square | Square |
| 1/2″ Nut | 6.54 | 3.75 | 4.00 | 2.62 | 7.87 | 5.78 |
| 5/8″ Nut | 11.9 | 7.33 | 6.96 | 4.93 | 14.3 | 10.8 |
| 3/4″ Nut | 19.3 | 11.9 | 11.0 | 7.70 | 23.5 | 15.4 |
| 7/8″ Nut | 29.7 | 19.0 | 16.7 | 12.0 | 36.2 | 24.5 |
| 1″ Nut | 42.5 | 28.3 | 23.5 | 17.6 | 51.5 | 36.3 |
| 11/8″ Nut | 59.2 | 40.3 | 32.4 | 24.7 | 72.4 | 52.5 |
| 11/4″ Nut | 78.6 | 54.3 | 45.8 | 36.1 | 95.5 | 70.6 |
| 13/8″ Nut | 102 | 73.0 | 59.3 | 47.9 | 125.0 | 94.5 |
| 11/2″ Nut | 131 | 94.3 | 74.8 | 60.9 | 161 | 122 |
| 15/8″ Nut | 162 | 91.6 | ||||
| 13/4″ Nut | 204 | 151 | 114 | 100 | ||
| 17/8″ Nut | 241 | 134 | ||||
| 2″ Nut | 299 | 224 | 165 | 140 | ||
| 21/4″ Nut | 419 | 227 | ||||
| 21/2″ Nut | 564 | 332 | ||||
| 23/4″ Nut | 738 | 429 | ||||
| 3″ Nut | 950 | 545 | ||||
| 31/4″ Nut | 1194 | 651 | ||||
| 31/2″ Nut | 1526 | 851 | ||||
| 33/4″ Nut | 1812 | 1005 | ||||
| 4″ Nut | 2180 | 1200 |
Diameter* (milimeter) |
Stainless Steel Nuts Size (milimeter) |
Height (milimeter) |
||
|---|---|---|---|---|
Stainless Steel Hex Nuts |
Stainless Steel Jam Nuts |
Stainless Steel Nylock Nuts |
||
4 |
2 |
1.06 |
1.02 |
- |
5 |
2.05 |
2 |
1.06 |
- |
5.05 |
3 |
2.04 |
1.08 |
4 |
7 |
4 |
3.02 |
2.02 |
5 |
8 |
5 |
4 |
2.07 |
5 |
10 |
6 |
5 |
3.02 |
6 |
11 |
7 |
5.05 |
3.05 |
- |
13 |
8 |
6.05 |
4 |
8 |
17 |
10 |
8 |
5 |
10 |
19 |
12 |
10 |
6 |
12 |
22 |
14 |
11 |
7 |
14 |
24 |
16 |
13 |
8 |
16 |
27 |
18 |
15 |
9 |
18.05 |
30 |
20 |
16 |
10 |
20 |
| Applications | Industries |
|---|---|
| Chemical processing equipment | Chemical |
| Seawater and marine environments | Marine |
| Oil and gas platforms | Oil & Gas |
| Heat exchangers | Energy |
| Pharmaceutical equipment | Pharmaceutical |
| Pulp and paper processing | Pulp & Paper |
| Desalination plants | Water Treatment |
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Stainless Steel 347 and 347H Nuts are fasteners made from a stabilized austenitic stainless steel that offers excellent corrosion resistance, even in high-temperature environments.
Stainless Steel 347H Nuts are the high-carbon version of 347 Nuts, providing enhanced high-temperature strength and creep resistance, making them suitable for more demanding applications.
These nuts find extensive use in industries like petrochemicals, chemical processing, oil and gas, power generation, aerospace, and more, due to their resistance to corrosion and high temperatures.
They are commonly used in flange connections, pressure vessels, heat exchangers, aircraft exhaust manifolds, and other high-temperature environments requiring corrosion resistance.
Yes, the high-temperature stability of these nuts makes them suitable for applications in temperatures ranging from cryogenic to elevated levels.
Yes, GIC Fasteners offers customization options for size, thread type, and coatings, catering to diverse project requirements and ensuring precise compatibility.
The high levels of chromium, nickel, and molybdenum in these nuts form a protective oxide layer, guarding against corrosive attacks, including those from acids and chloride solutions.
Absolutely, the corrosion resistance of these nuts makes them an excellent choice for seafront structures, protecting against the corrosive effects of seawater and salt-laden air.
Stainless Steel 904L Nuts have a long service life, reducing the need for frequent replacements, making them a sustainable choice for various industries, including water treatment and marine engineering.
