Stainless Steel 17-4 PH Fasteners, designed for high-strength and corrosion-resistant applications, are manufactured and supplied by Vinit Stainless, a reputable company based in Chennai, India. These precipitation-hardening fasteners are made to withstand harsh conditions where dependability and longevity are crucial. Vinit Stainless guarantees that every product is expertly crafted to satisfy international quality standards, offering superior mechanical performance, precise dimensions, and an extended lifespan. With a dedication to quality and prompt delivery, the company provides a large selection of 17-4 PH bolts, nuts, screws, washers, and custom fasteners to industries including power generation, petrochemical, marine, and aerospace.
About 15–17.5% chromium, 3–5% nickel, 3–5% copper, and trace amounts of niobium for precipitation hardening are present in stainless steel 17-4 PH fasteners. With a tensile strength of up to 1100 MPa and a yield strength of about 1000 MPa under H900 conditions, these fasteners provide exceptional mechanical strength. They have outstanding resistance to general corrosion, stress corrosion cracking, and fatigue. 17-4 PH fasteners offer good toughness, machinability, and weldability while retaining their integrity at high temperatures. They are perfect for high-load and high-precision fastening applications because of their special blend of strength and resistance to corrosion.
| Specifications | ASTM A 193 / ASME SA 193 |
| Standard | DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards |
| Size | M3 – M100 | 3/6″ – 4″ | Custom Sizes |
| Fasteners Length | 3 mm – 200 mm | Custom Sizes |
| Nuts Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Washers Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc. |
| Neck type | Hex, Square, Triangular, Oval & Knurled etc. |
| Surface Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing. |
| Grade | C | Cb+Ta | Cr | Cu | Fe | Mn | Ni | P | S | Si |
| SS 17-4 PH | 0.07 max | 0.15-0.45 | 15.00-17.50 | 3.00-5.00 | Bal | 1.0 max | 3.0-5.0 | 0.40 max | 0.03 max | 1.0 max |
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Stainless Steel 17-4 PH Nuts Known for excellent corrosion resistance, Stainless Steel 17-4 PH nuts are typically used in aerospace and industrial applications. They come in various sizes. Usually, the dimensions are M2 to M36 and conform to standard nut sizes.
17-4 PH stud bolts are ideal for high-stress environments and offer high corrosion resistance. Depending on application requirements, they are available in sizes ranging from M4 to M30, with lengths varying from 20mm to 1000mm.
These bolts provide strong corrosion resistance and are commonly used in structural applications. Available in sizes from M5 to M36, with standard lengths ranging from 10mm to 200mm, they meet various industrial and military standards.
Stainless Steel 17-4 PH threaded rods Known for excellent corrosion resistance, 17-4 PH threaded rods are used in high-strength applications. They are available in diameters from M6 to M36 and lengths from 100mm to 3000mm, suitable for various structural needs.
Offering high corrosion resistance, 17-4 PH screws are suitable for harsh environments. They come in sizes from M2 to M16, with lengths from 6mm to 100mm, meeting diverse application standards.
These washers are highly corrosion-resistant, making them ideal for marine and aerospace applications. Available in diameters from M3 to M36, they come in various thicknesses to fit different bolt sizes.
The aerospace, marine, chemical processing, defence, food processing, and power generation industries all make extensive use of stainless steel 17-4 PH fasteners. They are perfect for reactor systems, valves, pumps, structural assemblies, and turbine components because of their great strength and resistance to corrosion. These fasteners are also utilised in pressure vessels, heat exchangers, and offshore platforms, where they are frequently exposed to corrosive and stressful conditions. The best option for mission-critical and high-load fastening applications, 17-4 PH fasteners lower maintenance frequency and improve operational safety due to their exceptional performance in both mild and aggressive conditions.
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