Monel Fasteners

Sumit Impex is a trusted manufacturer and supplier of Monel fasteners, offering precision-engineered solutions for critical industrial applications worldwid. We specialize in Monel 400 fasteners and Monel K-500 fasteners, both of which are known for their exceptional corrosion resistance, high strength, and longevity in demanding conditions. Our Monel bolts, nuts, screws, washers, and studs are manufactured in accordance with ASTM B164, ASTM F467, and ASTM F468 standards, as well as UNS N04400 for Monel 400 and UNS N05500 for Monel K-500. They provide superior reliability in industries such as marine engineering, aerospace, oil and gas, chemical processing, and power generation.

Monel fasteners are manufactured from a nickel-copper alloy having roughly 63% nickel and 30% copper, providing outstanding resistance to seawater, brackish water and a wide range of acids and alkalis. Monel 400 fasteners are highly resistant to hydrofluoric acid, non-oxidizing acids and stress corrosion cracking, making them perfect for marine fastening, and chemical processing equipment. They function well at temperatures ranging from sub-zero to 480°C (900°F) without losing mechanical integrity, with tensile strength of roughly 550 MPa. Monel K-500 fasteners combine the excellent corrosion resistance of Monel 400 with precipitation-hardened strength, delivering tensile strength up to 965 MPa, making them suitable for high-load applications such as oil drilling tools, pump shafts and marine propeller shafts.

We offer a complete range of Monel fastener types, including hex bolts, heavy hex nuts, socket head cap screws, U-bolts, stud bolts, flat washers, spring washers, and threaded rods. Custom manufacturing options are available for size, threading, and coating to meet specific project requirements. Our Monel alloy fasteners are frequently used in offshore platforms, desalination plants, chemical reactors, heat exchangers, and shipbuilding, where their long-term corrosion resistance ensures maintenance and a longer service life.

At Sumit Impex, quality assurance is central to our operations. Every batch of Monel fasteners undergoes rigorous testing, including hardness tests, tensile strength verification, chemical composition analysis, PMI testing, 100% radiography, and non-destructive testing. We provide full Mill Test Certificates (MTC) in accordance with EN 10204/3.1, together with a commercial invoice, packing list, fumigation certificate, heat treatment chart, quality assurance plan, and NABL-approved laboratory results.

Sumit Impex provides exceptional quality, accurate manufacturing and affordable pricing, if you’re looking for Monel fasteners suppliers in India, the US, the UK, the UAE, Saudi Arabia, Germany, or Australia. Contact us today to get a detailed quote or technical datasheet for Monel 400 fasteners or Monel K-500 fasteners tailored to your industrial needs.