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At Hazlewood Fasteners in Canberra, we engineer bolts that redefine strength, precision, and reliability. Our Stainless Steel 17-4 PH bolts are forged from a premium precipitation-hardening stainless steel alloy, combining exceptional mechanical toughness with superior corrosion resistance. Designed for critical applications where performance cannot be compromised, these bolts maintain integrity under vibration, stress, and temperature fluctuations. Hazlewood Fasteners’ 17-4 PH bolts provide secure fastening in aerospace, marine, chemical, and industrial environments. They are more than fasteners—they are engineered components that ensure assemblies remain steadfast and reliable in harsh conditions where both strength and durability are paramount.
17-4 PH bolts are made from a stainless steel alloy containing roughly 17% chromium, 4% nickel, with small additions of copper and niobium. This allows the bolts to be precipitation hardened, providing high tensile strength, excellent fatigue resistance, and outstanding hardness. They maintain dimensional stability and corrosion resistance under high stress, temperature variations, and chemical exposure. With exceptional mechanical performance, 17-4 PH bolts resist wear, cracking, and deformation, ensuring secure, long-lasting fastening in demanding aerospace, industrial, and marine applications.
| 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 |
| Bolts 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 |
| 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 |
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 17-4 PH bolts are widely used in aerospace structures, chemical processing equipment, high-performance industrial machinery, and marine installations where strength, fatigue resistance, and corrosion protection are critical. Their precipitation-hardening capability ensures reliable performance under cyclic loading, vibration, and thermal stress. Hazlewood Fasteners’ 17-4 PH bolts secure critical assemblies in structural frameworks, turbines, valves, and machinery components exposed to harsh environments. Engineers rely on these bolts to deliver high-strength, durable, and corrosion-resistant fastening solutions where safety and longevity are essential. They provide the perfect balance of mechanical performance and environmental resilience.
Stainless steel 17-4 PH bolts undergo rigorous quality control to ensure exceptional performance. These tests include hardness testing, chemical analysis by spectroanalysis, material quality determination by PMI testing, tensile strength testing, impact testing, and fatigue resistance testing in addition to evaluating the corrosion resistance of each bolt and corrosion resistance. This exhaustive inspection ensures that our 17-4 PH bolts meet the highest industry standards for strength, durability and reliability.
Hazlewood Fasteners is a leading manufacturer and supplier of high-quality fasteners in Canberra, Australia, with over 8 years of experience serving global industries.
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