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Stainless Steel 410 Nuts are high-strength martensitic fasteners designed for applications requiring a balance of mechanical strength, moderate corrosion resistance, and wear resistance. Manufactured in accordance with standards such as DIN 934, ASTM A194 Grade 410, and ISO equivalents, these nuts are widely used in automotive assemblies, oil & gas equipment, heavy machinery, and industrial maintenance systems.
The defining characteristic of SS 410 material is its heat-treatable structure, which allows improved hardness and tensile strength compared to austenitic grades like SS 304. This makes Stainless Steel 410 Nuts suitable for environments where load-bearing capability is more critical than extreme corrosion resistance.
KK Fasteners supplies these nuts to engineering industries across global markets, ensuring consistent dimensional accuracy and full material traceability for every production batch.
| Parameter | Specification |
|---|---|
| Material | Stainless Steel 410 (Martensitic Grade) |
| Grade | AISI 410 / UNS S41000 |
| Standards | DIN 934, ASTM A194 Gr 410, ISO 4032, BS 1768 |
| Size Range | M3 to M64 / 1/8" to 2-1/2" |
| Thread Types | Metric (MM), UNC, UNF |
| Surface Finish | Plain, Passivated, Polished |
| Hardness | 20–32 HRC (Heat Treated Condition) |
| Tensile Strength | 700–1000 MPa (depending on heat treatment) |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 410 | min. | – | – | – | – | – | 11.5 | – | – | – |
| max. | 0.15 | 1.0 | 1.00 | 0.040 | 0.030 | 13.5 | – | 0.75 | – | |
| 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 | ||||
| 410 | 480 | 275 | 16 | 95 | 201 |
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 410 | S41000 | 410S21 | 56A | 1.4006 | X12Cr13 | 2302 | SUS 410 |
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 |
Stainless Steel 410 Nuts are used in engineering systems where mechanical strength is prioritized over extreme corrosion resistance. They are widely deployed across heavy-duty and industrial environments.
The production of Stainless Steel 410 Nuts involves precision cold forging and CNC thread machining, ensuring dimensional accuracy and mechanical consistency. Heat treatment is applied to achieve the required hardness and tensile strength balance.
Each batch undergoes strict quality control including hardness testing, dimensional inspection, torque resistance validation, and surface finish verification. Material traceability is maintained from raw material procurement to final dispatch.
KK Fasteners implements ISO-aligned quality systems and follows controlled inspection protocols to ensure every nut meets global industrial fastening requirements before shipment.
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Stainless Steel 410 Nuts are high-strength fasteners made from martensitic stainless steel grade 410. They are heat-treatable, which allows improved hardness and tensile strength compared to austenitic grades. These nuts are commonly used in mechanical assemblies where load-bearing performance is more critical than high corrosion resistance.
Yes, SS 410 is generally stronger than SS 304 due to its martensitic structure and ability to be heat-treated. It offers higher hardness and tensile strength, making it suitable for structural and mechanical applications. However, SS 304 performs better in corrosive or marine environments.
Stainless Steel 410 Nuts are manufactured according to internationally recognized standards such as DIN 934, ISO 4032, and ASTM A194 Grade 410. These standards ensure dimensional accuracy, thread compatibility, and consistent mechanical performance across global industrial applications.
They are widely used in automotive assemblies, heavy machinery, oil & gas equipment, construction machinery, and industrial fabrication systems. These nuts are preferred in applications requiring high strength and wear resistance under moderate environmental exposure.
A reliable manufacturer should offer certified material quality, compliance with international standards, consistent dimensional accuracy, and full traceability. Companies like KK Fasteners supply globally with controlled quality inspection, export documentation, and engineering-grade production reliability.
Stainless Steel 410 Nuts offer a reliable balance of strength, hardness, and cost efficiency for industrial fastening systems operating in controlled environments. With precision manufacturing and strict quality control, they remain a preferred choice for engineering procurement teams.
KK Fasteners supports global industries with consistent supply, technical documentation, and customized fastening solutions. For detailed specifications or bulk export requirements, contact the engineering team to request a quotation or datasheet.
