Stainless Steel Rivets and Pins

When fastening components on a boat, the choice between a standard aluminum rivet and a stainless steel one may seem trivial, but it makes the difference between a lasting job and one you will redo after a few seasons. Galvanic corrosion is the primary enemy: pairing dissimilar metals in the presence of an electrolyte - saltwater - drastically accelerates degradation. For this reason, the use of high-resistance stainless steels such as AISI 316 is the baseline for any work on deck or on the rigging.

Pins, often used for quick fastening of pivots or hinges, must provide reliable mechanical hold and easy extraction when needed - especially in emergency situations. A component seized by rust is a real hazard while underway. Our technical expertise at Nautiba leads us to always recommend carefully assessing shaft diameter and length, as well as electrolytic compatibility with the substrate you will be working on.

We do not just supply the part; we help you determine whether you are choosing the right component for your specific application. When we work with our partners, we verify that the technical parameters are clear, minimizing the risk of errors. Our order management aims to give you precise answers on availability timelines, avoiding unnecessary delays for jobs that often must be completed before casting off.

Remember that every hole drilled in a boat's structure is a potential weak point. Sealing the fastening point correctly is just as important as choosing the right material. If you have doubts about compatibility between the structure's metal and the rivet you intend to use, contact us - we prefer to prevent an installation error rather than handle a return.

Tips for correct nautical fastening

• Always choose AISI 316 stainless steel for high corrosion resistance in a marine environment.
• Verify that the rivet diameter is perfectly matched to the existing hole to avoid structural play.
• Always use an isolating compound or a specific sealant when pairing dissimilar metals to block galvanic corrosion.
• Check that the rivet shaft length is adequate for the material thickness to be joined to ensure correct bulb expansion.

Which material is best to choose?

AISI 316 stainless steel is the standard material for marine use thanks to its molybdenum addition, which significantly increases corrosion resistance compared to AISI 304.

How do I prevent galvanic corrosion?

Corrosion is prevented by electrically isolating dissimilar metals from each other. The use of plastic washers or specific silicone sealants can break the galvanic contact.

How do I choose the correct size?

The diameter must match the hole exactly, while the length must cover the total thickness of the materials to be joined, adding the margin needed for the closing bulb to form.

When should I prefer a pin over a bolt?

A pin is used when quick fastening is needed - one that allows frequent assembly and disassembly without tools - ideal for sheets, turning blocks, or temporary fastenings.

What do I do if a stainless steel rivet is seized?

If a rivet is seized by oxidation, the only solution is to drill it out with a cobalt bit slightly smaller in diameter than the rivet itself, proceeding with extreme care to avoid enlarging the original hole.