Monel Fasteners

Monel Bolts, Screws, Nuts & Washers

What are Monel fasteners?

Monel fasteners are produced from nickel-based alloys containing copper, typically in the range of 29 to 33%, with some grades also containing iron, manganese, carbon or silicon. These alloys provide strong mechanical performance across a wide temperature range, including sub-zero conditions, alongside good resistance to corrosion and chemical attack.

What grades of Monel fasteners are available?

• Monel 400 (Alloy 400): One of the most commonly used grades, Monel 400 contains approximately 63% nickel and at least 28% copper. It offers excellent resistance to rapidly flowing seawater and brackish water, along with strong resistance to hydrofluoric acid and good resistance to other acids such as hydrochloric and sulphuric. Typical melting point ranges from 1300–1350°C.
• Monel K500: Monel K500 includes additions of aluminium and titanium, providing increased strength and hardness compared to Monel 400. This grade is commonly specified for demanding marine and chemical applications.

What should be considered when using Monel fasteners?

Monel bolts, screws and fasteners offer high strength and corrosion resistance but have poor machinability due to a tendency to work-harden. In addition, when Monel is in contact with metals such as aluminium, zinc or iron in harsh environments, galvanic corrosion of the adjacent metal may occur, which should be considered during material selection.

Why choose Monel fasteners from Fastenright?

We supply a comprehensive range of Monel fasteners, including:

• Monel bolts
• Monel screws
• Monel nuts
• Monel washers

Monel screws, bolts and fasteners are available from stock or to order, typically with short lead times. Many existing components can be manufactured in Monel on request. Non-standard sizes, grades and finishes are available as specials, and bespoke parts can be supplied to drawings and specifications, subject to minimum order quantities.