304 Stainless Steel Fasteners are known for their excellent resistance against corrosion and their properties that make them extra withstand different temperatures and last for a long time. These fasteners are one of the most widely used ones compared to the other stainless steel fasteners.
304L Stainless Steel Fasteners have a lower carbon content and can therefore reduce the carbide precipitation that can occur. Hence, these are used in a wide range of utilities where the temperature could be elevated. These fasteners can be available in different shapes, sizes, thicknesses, and dimensions depending on the specifications. And thus are used in a wide range of industries such as chemical industries, gas industries, oil industries, etc.
SS 304L Hex Bolt, UNS S30409 Threaded Rod, ASTM A193 304L Stainless Steel Anchor Bolt, 304L Stainless Steel Stud Bolt, 304H Stainless Steel Stud Bolt.

Sumit Impex is known for producing high-quality 304H Stainless Steel Fasteners. These fasteners have chromium in a higher amount and carbon in a lower amount. The chemical composition of these fasteners comprises 18 percent of chromium and 8 percent of nickel. There is about 0.07 percent of carbon content in the chemical composition of these fasteners.
Sumit Impex provides highly durable fasteners, these possess incredible tensile strength, and is excellently resistant to corrosion. It is basically a non-magnetic alloy that could be made into a magnetic one once undergone cold working. These fasteners are widely used in applications where the temperature and pressure are both high and in a not-so-favorable condition.
Stainless Steel 304 Series Fasteners Specifications
Grade | Stainless Steel 304/304H/304L |
Specification | ASTM A 193 ASME SA 193 |
Standard | DIN, ASTM, BS and all International Standards |
Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
Length | 3 mm to 200 mm |
Threads Configuration | Metric, NPT, BSPT, UNS/ Custom Size available. |
Form | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
Application | Most commonly used in petroleum refineries, Boilers, Heat exchangers, Condensers, Pipelines, Cooling towers, Steam exhausts, Electric generation plants, On occasion will be found in fertilizer and chemical plants. |
AISI Grade Equivalent
|
JIS Equivalent
|
Stainless Steel Notation
|
EN/DIN Numerical Equivalent
|
UNS
designation |
EN/DIN Symbolical Equivalent
|
AISI 304
|
SUS304
|
SS 304
|
EN 1.4301
|
UNS S30400
|
X4CrNi18-10
|
AISI 304L
|
SUS304L
|
SS 304L
|
EN 1.4307
|
UNS S30403
|
X2CrNi18-9
|
AISI 304H
|
SUS304H
|
SS 304H
|
EN 1.4948
|
UNS S30409
|
X2CrNiN18-10
|
Grade
|
C
|
Mn
|
Si
|
P
|
S
|
Cr
|
Mo
|
Ni
|
N
|
|
---|---|---|---|---|---|---|---|---|---|---|
304
|
min.
max. |
–
0.08 |
–
2.0 |
–
0.75 |
–
0.045 |
–
0.030 |
18.0
20.0 |
–
|
8.0
10.5 |
–
0.10 |
304L
|
min.
max. |
–
0.030 |
–
2.0 |
–
0.75 |
–
0.045 |
–
0.030 |
18.0
20.0 |
–
|
8.0
12.0 |
–
0.10 |
304H
|
min.
max. |
0.04
0.10 |
–
2.0 |
–
0.75 |
-0.045
|
–
0.030 |
18.0
20.0 |
–
|
8.0
10.5 |
–
|
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
|
||||
304 | 515 | 205 | 40 | 92 | 201 |
304L | 485 | 170 | 40 | 92 | 201 |
304H | 515 | 205 | 40 | 92 | 201 |
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity
(n.m) |
|||
---|---|---|---|---|---|---|---|---|---|
0-100°C
|
0-315°C
|
0-538°C
|
at 100°C
|
at 500°C
|
|||||
304/L/H |
8000 |
193 |
17.2 |
17.8 |
18.4 |
16.2 |
21.5 |
500 |
720 |

Stainless Steel 304 Series Fasteners Price List
- Stainless Steel 304 Fasteners
USD $2.1 – $10.01 / Kg - Stainless Steel 304L Hex Bolt
USD $2.05 – $10.15 / Kg - Stainless Steel 304H Hex Nut
USD $2.45 – $10.45 / Kg - SS 304 Stud Bolt
USD $2.18 – $10.78 / Kg - UNS S30400 Screw
USD $2.14 – $10.39 / Kg - Astm A193 SS 304 Spring Washer
USD $2.11 – $8 / Kg - SS 304 Threaded Rod
USD $2.13 – $10.89 / Kg

Stainless Steel 304 Bolts Dimensions

Bolt Size | A (max) | B | C (min) | D | E | F Thread Length for Bolt Length |
||
---|---|---|---|---|---|---|---|---|
max | min | 6″ and shorter |
over 6″ | |||||
1/2″ | 0.515 | 7/8 | 0.969 | 11/32 | 0.03 | 0.01 | 1.250 | 1.500 |
5/8″ | 0.642 | 1-1/16 | 1.175 | 27/64 | 0.06 | 0.02 | 1.500 | 1.750 |
3/4″ | 0.768 | 1-1/4 | 1.383 | 1/2 | 0.06 | 0.02 | 1.750 | 2.000 |
7/8″ | 0.895 | 1-7/16 | 1.589 | 37/64 | 0.06 | 0.02 | 2.000 | 2.250 |
1″ | 1.022 | 1-5/8 | 1.796 | 43/64 | 0.09 | 0.03 | 2.250 | 2.500 |
1-1/8″ | 1.149 | 1-13/16 | 2.002 | 3/4 | 0.09 | 0.03 | 2.500 | 2.750 |
1-1/4″ | 1.277 | 2 | 2.209 | 27/32 | 0.09 | 0.03 | 2.750 | 3.000 |
1-3/8″ | 1.404 | 2-3/16 | 2.416 | 29/32 | 0.09 | 0.03 | 3.000 | 3.250 |
1-1/2″ | 1.531 | 2-3/8 | 2.622 | 1 | 0.09 | 0.03 | 3.250 | 3.500 |
1-3/4″ | 1.785 | 2-3/4 | 3.035 | 1-5/32 | 0.12 | 0.04 | 3.750 | 4.000 |
2″ | 2.039 | 3-1/8 | 3.449 | 1-11/32 | 0.12 | 0.04 | 4.250 | 4.500 |
2-1/4″ | 2.305 | 3-1/2 | 3.862 | 1-1/2 | 0.19 | 0.06 | 4.750 | 5.000 |
2-1/2″ | 2.559 | 3-7/8 | 4.275 | 1-21/32 | 0.19 | 0.06 | 5.250 | 5.500 |
2-3/4″ | 2.827 | 4-1/4 | 4.688 | 1-13/16 | 0.19 | 0.06 | 5.750 | 6.000 |
3″ | 3.081 | 4-5/8 | 5.102 | 2 | 0.19 | 0.06 | 6.250 | 6.500 |
Different Types Of Bolts:


















Stainless Steel 304 Stud Bolt Dimensions

Diameter | Stainless Steel 304 Studs | |
---|---|---|
Plain | ||
UNC | 8UN | |
1/2 | 19568 | – |
5/8 | 19569 | – |
3/4 | 19570 | |
7/8 | 19571 | – |
1 | 19572 | – |
11/8 | 19573 | 13979 |
11/4 | 19574 | 13980 |
13/8 | 19656 | 13981 |
11/2 | 19657 | 13982 |
13/4 | 19658 | 13983 |
2 | 19659 | 13984 |
Different Types Of Stud Bolts:









Stainless Steel 304 Nut Dimensions

Nominal Size Of Thread Diameter | F | G | H | ||||||
---|---|---|---|---|---|---|---|---|---|
Across Flats Width |
Across Corners Width |
Thickness Row | |||||||
Basic | Maximum | Minimum | Maximum | Minimum | Basic | Maximum | Minimum | ||
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 |
Different Types Of Nut:















Stainless Steel 304 Washer Dimensions

Nominal Size | T | Clipped Width E, Min. | |||||||
I.D. | O.D. | Standard | Extra Thick | ||||||
12 | 14.4 | 14 | 27 | 25.7 | 4.6 | 3.1 | 10 | 8 | 10.5 |
16 | 18.4 | 18 | 34 | 32.4 | 4.6 | 3.1 | 10 | 8 | 14 |
20 | 22.5 | 22 | 42 | 40.4 | 4.6 | 3.1 | 10 | 8 | 17.5 |
22 | 24.5 | 24 | 44 | 42.4 | 4.6 | 3.4 | 10 | 8 | 19.2 |
24 | 26.5 | 26 | 50 | 48.4 | 4.6 | 3.4 | 10 | 8 | 21 |
27 | 30.5 | 30 | 56 | S4.1 | 4.6 | 3.4 | 10 | 8 | 23.6 |
30 | 33.6 | 33 | 60 | 58.1 | 4.6 | 3.4 | 10 | 8 | 26.2 |
36 | 39.6 | 39 | 72 | 70.1 | 4.6 | 3.4 | 10 | 8 | 31.S |
42 | 45.6 | 45 | 84 | 81.8 | 7.2 | 4.6 | 10 | 8 | 36.7 |
48 | 52.7 | 52 | 95 | 92.8 | 7.2 | 4.6 | 10 | 8 | 42 |
56 | 62.7 | 62 | 107 | 104.8 | 8.7 | 6.1 | 10 | 8 | 49 |
64 | 70.7 | 70 | 118 | 115.8 | 8.7 | 6.1 | 10 | 8 | 56 |
72 | 78.7 | 78 | 130 | 127.5 | 8.7 | 6.1 | 10 | 8 | 63 |
80 | 86.9 | 86 | 142 | 139.5 | 8.7 | 6.1 | 10 | 8 | 70 |
90 | 96.9 | 96 | 159 | 156.5 | 8.7 | 6.1 | 10 | 8 | 78.7 |
100 | 107.9 | 107 | 176 | 173.5 | 8.7 | 6.1 | 10 | 8 | 87.5 |
Different Types Of Washer:









Packaging
We Sumit Impex Metal Ensure the best quality of Packing, because it plays an important role especially in the case of international shipments in which consignment passes through various channels to reach the ultimate destination, so we put extraordinary concern regarding packaging.
We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,
- Boxes and Crates
- Shrink-wrapped
- Carton boxes
- Wooden pallets
- Wooden boxes
- Wooden crates

Testings (Destructive, Non Destructive)
- Mechanical Testing Such as Tensile, Elongation, Reduction of Area
- Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
- Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
- Positive Material Identification – PMI Testing
- Chemical Analysis – Spectro Analysis
- Intergranular Corrosion (IGC) Test
- Pitting Resistance Test
- Dye Penetrant Test (DP Test)
- Micro Test
- Macro Test
- Hardness Test
- Flaring Test
- Flattening Test
- Hydrostatic Test
- Radiography Test
- Ultra Sonic Test (UT)
- Eddy Current Testing
- Impact Test
- Bend Test

Application Industries
These material are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthrough the origins of stainless steel lies in a lucky accident. From the smallest part of zipper to the largest building skyscraper, stainless steel is an essential part of modern life.Stainless steel’s strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications. It is also has a long life cycle and is 100% recyclable.
- Construction
- Bridges
- Petrochemical Industry
- Ship Building
- Engineering
- General Structural Purposes
- Offshore and Onshore Services

Stainless Steel 304 Series Fasteners Manufacturers












Country we serve / City we deliver
UNS S30403 Allen Bolt Supplier in Malaysia, ASTM A193 SS 304L Bolt Supplier in Qatar, Din 1.4401 Stud Bolt Exporter in Saudi Arabia, ASME SA193 Stainless Steel 304H Bolt Stockist in Qatar, UNS S30409 Stud Bolt Exporter in Saudi Arabia, ASME SA193 Stainless Steel 304 Threaded Rod Stockist in Dubai, ASTM A193 SS 304 Fasteners Manufacturer in UAE, ASTM A193 SS 304L Hex Bolt Stockist in South Africa, Werkstoff Nr. 1.4301 Bolt Supplier in Qatar, ASME SA193 Stainless Steel 304 U Bolt Exporter in Tanzania, ASTM A193 SS 304 Hex Nut Exporter in Argentina, Werkstoff Nr. 1.4301 Hex Bolt Supplier in South Africa, Werkstoff Nr. 1.4948 Threaded Rod Stockist in Dubai, Din 1.4401 Nut Manufacturer in Nigeria, UNS S30403 Nut Exporter in Nigeria, Werkstoff Nr. 1.4301 Lag Bolt Manufacturer in Singapore, ASME SA193 Stainless Steel 304 Heavy Hex Nut Supplier in Brazil, Din 1.4948 Heavy Hex Bolt Stockist in Indonesia, UNS S30400 Fasteners Manufacturer in UAE, ASTM A193 SS 304H Stud Bolt Manufacturer in Saudi Arabia.
Din 1.4401 Stud Bolt Supplier in Jamnagar, ASME SA193 SS 304L Bolt Supplier in Pune, Werkstoff Nr. 1.4948 Bolt Supplier in Chennai, ASTM A193 SS 304 Hex Nut Supplier in Hyderabad, ASTM A193 SS 304 Bolt Supplier in Chennai, Din 1.4401 Nut Manufacturer in Hyderabad, Werkstoff Nr. 1.4948 Threaded Rod Stockist in Pimpri-Chinchwad, UNS S30403 Allen Bolt Supplier in Pimpri-Chinchwad, ASME SA193 Stainless Steel 304L U Bolt Supplier in Pune, UNS S30400 Stud Bolt Supplier in Jamnagar, Din 1.4406 Heavy Hex Bolt Stockist in Chennai, ASME SA193 SS 304H Heavy Hex Nut Supplier in Coimbatore, UNS S30403 Fasteners Manufacturer in Pune, ASTM A193 SS 304L Hex Bolt Stockist in Coimbatore, UNS S30400 Stud Bolt Stockist in Coimbatore, ASTM A193 SS 304 Threaded Rod, Werkstoff Nr. 1.4301 Lag Bolt Manufacturer in Jamnagar, ASME SA193 Stainless Steel 304H Threaded Rod Stockist in Pimpri-Chinchwad, Din 1.4406 Nut Manufacturer in Hyderabad, ASTM A193 SS 304H Fasteners Manufacturer in Pune.
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