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Stainless Steel Bolts are crucial fastening elements that find their place in a variety of industrial, commercial, and construction settings, thanks to their impressive strength, durability, and resistance to corrosion. These bolts are crafted to provide secure and long-lasting connections, ensuring they perform reliably even in tough environments like marine, chemical, and outdoor conditions. With a range of types available—including hex bolts, carriage bolts, anchor bolts, and stud bolts—they cater to a wide array of structural and mechanical needs. Their sleek finish, high performance, and minimal maintenance requirements make Stainless Steel Bolts a go-to choice for both heavy-duty tasks and precision applications.
The composition of Stainless Steel Bolts primarily includes iron, chromium, and nickel, along with other elements like molybdenum, manganese, silicon, and carbon that enhance their mechanical and chemical properties. Chromium is key for providing robust corrosion and oxidation resistance, while nickel boosts toughness and stability when temperatures fluctuate. These bolts boast impressive mechanical traits, such as high tensile strength, good yield strength, remarkable hardness, and strong resistance to wear and vibration. Their ability to maintain structural integrity under pressure makes them perfect for demanding environments that require secure and dependable fastening.
| ASTM/ASME Specifications | ASTM A193 / ASME SA 193, ASTM A194 / ASME SA 194 |
| Bolts, Studs Threads | UNC, METRIC, BSF, UNF, BSW or Custom |
| Head drive | Phillips, Six-Lobe, Phillips/Slot, Slotted |
| Stainless Steel Bolts | Hex Bolts, Flange Bolts, Square Bolts, T Bolts, Eye Bolts, U Bolts, Lag Bolts, Counter Sunk Bolts, J Bolts, Hex Head Bolts |
| Grade | AISI | Stainless Steel Bolts Chemical Composition (% maxima unless stated) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | ||||||
| A1 | SS 202 | 0.12 | 1.0 | 6.5 | 0.20 | 0.15-0.35 | 16,0 – 19,0 | 0.7 | 5,0 – 10,0 | 1.75-2.25 | ||||
| A2 | SS 304 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 15,0 – 20,0 | 0.0 | 8,0 – 19,0 | 4.0 | ||||
| A3 | SS 321 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 17,0 – 19,0 | 0.0 | 9,0 – 12,0 | 1.0 | ||||
| A4 | SS 316 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 16,0 – 18,5 | 2,0 – 3,0 | 10,0 – 15,0 | 4.0 | ||||
| C1 | SS 410 | 0.09-0.15 | 1.0 | 1.0 | 0.05 | 0.03 | 11,5 – 14,0 | – | 1 | – | ||||
| C3 | SS 431 | 0.17-0.25 | 1.0 | 1.0 | 0.04 | 0.03 | 16,0 – 18,0 | – | 1,5 – 2,5 | – | ||||
| C4 | SS 416 | 0.08-0.15 | 1.0 | 1.5 | 0.06 | 0.15-0.35 | 12,0 – 14,0 | 0.6 | 1 | – | ||||
| F1 | SS 430 | 0.12 | 1.0 | 1.0 | 0.04 | 0.03 | 15,0 – 18,0 | 0.0 | 1 | – | ||||
| Stainless Steel Bolts | Class | Tensile Stress Rm MPa (N/mm2) minimum | Yield Strength Rp 0.2 Mpa (N/mm2) minimum | AL Minimum Elongation | Diameter |
|---|---|---|---|---|---|
| Stainless Steel Bolts | 70 | 700 | 450 | 0.4d | =<M20 |
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Amer Stainless provides superior quality with its stringent tests carried out on every material-hardness, chemical analysis through spectro analysis, PMI testing, flattening, micro and macro tests, pitting resistance, flaring, and IGC tests. It makes sure to test all of this so as to give out perfect performance. Along with the commitment to quality, we give all the important documents like commercial invoices, a packaging list including net and gross weights, box numbers, labels, and a Certificate of Origin legalized or attested by the Chamber of Commerce or Embassy. Besides, our Third-Party Inspection Certificate further complements our promise to achieve 100% client satisfaction in our Bolts Price List.
Yes, stainless steel bolts can be welded, but it depends on the grade of the steel. Proper welding techniques and filler materials are required to maintain strength and corrosion resistance.
Stainless steel bolts can be magnetic or non-magnetic, depending on the alloy. Ferritic and martensitic stainless steels are magnetic, while austenitic stainless steels are typically non-magnetic.
Yes, we provide ss bolts standard and customized dimensions and polishes to meet your specific project requirements. For more details mail us on sales@amerstainless.com
Yes, stainless steel bolts can be used for underground applications due to their corrosion resistance and durability. However, the specific grade should be selected based on environmental conditions.
Across various industries, Stainless Steel Bolts are the go-to choice where strong, corrosion-resistant, and long-lasting fasteners are a must. In construction and infrastructure projects, they play a vital role in steel structures, bridges, and exterior fixtures. The automotive, machinery, and equipment sectors depend on them for the secure assembly of engines, frames, and mechanical components. In marine and offshore settings, their resistance to saltwater and humidity is invaluable, while chemical and food processing plants also rely on their durability and reliability.







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