Rivet materials
Rivet materials: aluminium, steel, stainless A2 and A4, copper and polymers. Selection criteria for body, mandrel and exposure.
Body and mandrel: two distinct choices.
| Body | Mandrel / pin | Selection check |
|---|---|---|
| Aluminium | Aluminium or steel, part-specific | Check alloy, exposure and dissimilar-metal contact. |
| Steel | Steel with specified finish | Specify coating and corrosion requirements. |
| Stainless A2 | A2 where declared | Distinguish body and mandrel; do not infer a strength class. |
| Stainless A4 | A4 where declared | Check composition and exposure; no blanket suitability for all marine conditions. |
| Copper | Steel or brass, design-specific | Assess electrical contact, finishes and galvanic compatibility. |
| Cupronickel / nickel-copper alloys | According to specification | Do not equate generic names with specific commercial alloys. |
| Polymers | Design-specific pin | Identify polymer, temperature, UV and fire behaviour. |
Galvanic corrosion requires electrical continuity and an electrolyte. Assess contacting metals, exposure and any joint isolation. A decorative finish is not a substitute for a corrosion-protection specification.
Exposure and requirements.
| Parameter | Required information |
|---|---|
| Geometry | Diameter d, length L, head type and envelope; drawing if available. |
| Grip stack | Minimum and maximum total thickness, layer count, materials and coatings. |
| Hole and access | Diameter and tolerance, through or blind hole, rear access and clearance. |
| Performance | Shear, tension, vibration, any sealing requirement and operating conditions. |
| Documentation | Standard with edition, required test report or document and agreed traceability. |
Frequently asked questions.
How do I choose rivet length?
Measure the stack and select a part whose minimum–maximum grip includes that thickness. Body length and grip are different dimensions.
What hole diameter is required?
Use the diameter and tolerance in the individual part specification. There is no universal allowance across families; check burrs, ovality and alignment.
Is a stainless rivet always suitable for marine use?
Check body and mandrel alloy, exposure, chlorides and joined materials. The words stainless or A4 do not qualify the complete joint.
How can I request a quotation and technical documents?
Send the family or code, dimensions, grip, materials, quantity and documentation requirements. Dueemme Sidol checks the specification and availability before confirmation.
Prepare your technical enquiry.
Sources and further reading.
Original Dueemme Sidol editorial content. Classification checked against public Rivit pages; standards cross-checked with ISO and DIN Media. Series names identify their owners’ technical references and do not imply authorised distribution.
Editorial verification: 4 November 2026. Specification, documentation and availability subject to quotation confirmation.