Mitchell Stainless, a trusted manufacturer and supplier in Hamilton, New Zealand, provides premium Stainless Steel 17-4 PH fasteners designed for high-strength and corrosion-resistant applications. 17-4 PH is a precipitation-hardening stainless steel offering excellent tensile strength, hardness, and good corrosion resistance, making it ideal for demanding industrial, aerospace, and chemical applications. Mitchell Stainless ensures each fastener meets strict quality standards, providing precise dimensions, consistent mechanical performance, and long-term durability. These fasteners are engineered to deliver reliable, high-performance fastening solutions where strength, toughness, and resistance to stress corrosion are essential.
Stainless Steel 17-4 PH fasteners are composed primarily of iron, with 15–17% chromium, 3–5% nickel, 3–5% copper, and small amounts of manganese, silicon, and carbon. This composition provides high tensile strength, excellent hardness, and good corrosion resistance after precipitation hardening. Chromium and nickel ensure toughness and oxidation resistance, while copper enhances hardness and mechanical performance. These fasteners maintain superior strength and durability, making them suitable for critical applications where structural integrity, wear resistance, and environmental resistance are required.
| 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.
Stainless Steel 17-4 PH Fasteners are rigorously tested by us for their quality and reliability. The tests involve verification of the material composition, mechanical property checks, and assessments of the dimensions. Also third-party inspections can be offered for extra assurance when needed. With a strong focus on quality and efficiency we ensure swift delivery of our fasteners according to different industry requirements keeping the highest standards of performance and customer satisfaction.
Stainless Steel 17-4 PH fasteners are widely used in aerospace components, chemical processing equipment, marine and offshore applications, and industrial machinery where high strength and corrosion resistance are critical. Typical applications include bolts, screws, nuts, and other fasteners for high-stress assemblies, valves, pumps, and structural components exposed to aggressive environments. They are also used in maintenance and repair projects requiring reliable, high-performance fastening solutions. In New Zealand’s industrial and fabrication sectors, 17-4 PH fasteners are valued for producing durable, long-lasting, and high-strength assemblies capable of withstanding mechanical stress, wear, and corrosive conditions.
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