Hardness testing to ISO 6508-1
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Inconel fasteners are high-performance components made from nickel-chromium-based alloys, mainly Inconel 625 and Inconel 718, engineered to perform under extreme conditions. These fasteners, renowned for their exceptional resistance to heat, corrosion, and stress, find use in applications where ordinary steel would fail. Whether exposed to intense temperatures, corrosive chemicals, or mechanical load, Inconel fasteners maintain their strength and stability. As a trusted Inconel fasteners supplier, Vision Alloys offers a complete range of nickel-chromium fasteners, including corrosion-resistant Inconel bolts and high-temp fasteners. Headquartered in India, our distribution extends across the USA, Europe, and other major industrial regions, meeting the toughest performance standards globally.
Vision Alloys supplies two widely used grades of Inconel: Inconel 625 and Inconel 718. Inconel 625 is a type of alloy made from nickel, chromium, and molybdenum that offers excellent protection against seawater, acidic conditions, and high heat oxidation. Inconel 718, on the other hand, includes additional elements like niobium and titanium for greater tensile and yield strength, even at elevated temperatures up to 700°C. These fasteners also resist creep, fatigue, and stress rupture in high-pressure systems. With such mechanical properties, Inconel 625 bolts and Inconel 718 fasteners are highly valued across industries for their ability to endure both thermal and mechanical stress over long operational cycles. These nickel alloy fasteners are perfect choices for high-performance and mission-critical applications.
At Vision Alloys, we offer a wide variety of Inconel nuts and bolts to cater to industry-specific needs. Our product line includes hex bolts, heavy hex nuts, machine screws, studs, threaded rods, washers, anchors, U-bolts, and more. We also specialize in custom Inconel threaded rods and components based on customer drawings or standards. These fasteners are available in different thread forms, such as UNC, UNF, and metric, and come in multiple surface finishes, including passivated and bright finish Inconel screws. Manufactured using forging, machining, or cold-heading techniques, our fasteners are suitable for both standard and customized industrial needs, offering durability, precision, and flexibility for complex assemblies.
Inconel fasteners are widely used in industries where reliability and resistance to environmental extremes are critical. In the aerospace sector, Inconel 718 bolts are used in turbine engines, exhaust systems, and high-temperature brackets. Inconel's ability to withstand corrosion makes it the perfect material for marine engineering fasteners used in underwater valves, shipbuilding parts, and propeller systems. Inconel 625 nuts are commonly used in subsea applications like offshore oil platforms, as well as in petrochemical plants for sealing chemical tanks and reactors. These fasteners are also preferred in gas turbines, nuclear plants, and power generation units, offering unmatched performance in the face of heat, pressure, and corrosion. Whether it's subsea Inconel bolts or Inconel fasteners for chemical processing, they are the first choice for long-lasting, secure assemblies.
As a leading ASTM Inconel fastener supplier, Vision Alloys is committed to delivering top-quality products with full traceability and compliance. We manufacture our fasteners in accordance with ASTM, ASME, and DIN standards, backed by ISO 9001 certification for quality management. We offer complete documentation, including mill test certificates (MTCs), and provide optional third-party inspections through reputable agencies like SGS and Lloyd’s. With a robust inventory of standard and non-standard sizes, we ensure rapid delivery of Inconel bolts and nuts to both domestic and international clients. Our clients across India, Europe, and the USA value us for our consistency, product authenticity, and export-ready Inconel fasteners for urgent or scheduled deliveries.
To ensure secure international shipments, Vision Alloys uses industry-standard export packaging, including heavy-duty wooden crates, moisture-proof wrapping, and clearly labeled cartons. Every fastener is marked with critical details such as grade, thread size, batch number, and heat number for full traceability. Whether you're sourcing for a large-scale marine project in Europe or an aerospace facility in the USA, we guarantee timely dispatch and full support. As a global Inconel fasteners distributor, we make it easier for engineering firms, OEMs, and project consultants to source batch-marked Inconel bolts and certified hardware from a single reliable supplier.
Hardness testing to ISO 6508-1
Nut proof load testing to ISO 898-2
Suitability for preloading to EN 14399-2
Calibrated gauges and tools
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| Specifications | ASTM B166, ASME SB166 |
| Standard | DIN, ASTM, BS and all International Standards |
| Size | M3 to M90 |
| Length | 10mm to 1000mm |
| 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. |
To preserve the high standards of our selection of industrial fasteners, we have always adhered to a systematic quality management process.
Our staff of experts is vibrant and talented, and they have always been our largest supporters and contributors to our success. Our vision is to create a world of fasteners.

