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Rinku Fasteners, based in Kolkata, India, has built a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 316 Bolts. With a focus on precision engineering and a dedication to quality, the company provides fastening solutions that can handle corrosive, high-moisture, and chemically aggressive environments. Their SS 316 bolts are crafted using cutting-edge technology, ensuring they are durable, perform consistently, and meet global quality standards. Catering to sectors like marine, chemical processing, pharmaceuticals, food processing, and construction, Rinku Fasteners is known for its dependability, prompt delivery, and outstanding customer service across various industrial applications.
Stainless Steel 316 Bolts are made up of 16–18% chromium, 10–14% nickel, and 2–3% molybdenum, which greatly boosts their resistance to pitting and crevice corrosion, particularly in chloride-heavy environments. This alloy boasts impressive mechanical strength, with a tensile strength of about 515 MPa and a yield strength close to 205 MPa. SS 316 also offers good hardness, toughness, and stability at high temperatures. The inclusion of molybdenum enhances resistance to chemical attacks, making these bolts perfect for tough conditions. They deliver remarkable durability, corrosion resistance, and long-lasting performance in demanding industrial settings.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| SS 316 Bolts | Min | – | – | – | 0 | – | 16.0 | 2.00 | 10.0 | – |
| Max | 0.08 | 2.0 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.10 |
| Type | Elong (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||
| SS 316 Bolts | 40 | 95 | 217 |
| Dimensions Standard and Specification | ASTM A193 / SA 193, ASTM A194 / SA 194 |
| International Specifications | DIN, ASTM, BS and all International Standards |
| Available Length | 3 To 200 MM |
| Nuts Size range | M3 To M56 3/6″ to 2″ |
| Bolts or Screw Sizes | M3 To M56 3/6″ to 2″ |
| Washers Sizes | M3 To M56 3/6″ to 2″ |
| Tensile Strength | 205 MPA |
| Yield Strength | 515 MPA |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless Steel 316 Bolts are popular across various industries thanks to their excellent corrosion resistance and mechanical reliability. They shine in marine environments, offshore structures, and shipbuilding, where they constantly face saltwater and moisture. In chemical processing facilities, they are essential for equipment, piping systems, and storage tanks that come into contact with harsh chemicals. The pharmaceutical and food processing sectors favor SS 316 bolts for their hygienic, non-contaminating characteristics. Additionally, these bolts are widely used in construction and other applications where strength and reliability are paramount.
We ensure top quality for our Stainless Steel 316 Bolts by conducting thorough tests before shipping. These tests include Hardness, Chemical Analysis using spectrum analysis, Positive Material Identification (PMI), Flattening, Micro and Macro, Pitting Resistance, Flaring, and Intergranular Corrosion (IGC). We also provide important documents, such as a commercial invoice, packaging list, Certificate of Origin, and Guarantee Letter. Additionally, we offer third-party inspection certificates to confirm the bolt’s quality and suitability for different applications.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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