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Al5056 / Steel Dome Head Blind Rivet
AL5056 / Steel dome head blind rivets provide a high‑strength, corrosion‑resistant fastening solution designed for permanent installation where access is available from only one side of the workpiece. Featuring an AL5056 aluminum body and a carbon‑steel mandrel, these rivets combine the lightweight, corrosion‑resistant benefits of aluminum with the shear‑strength reinforcement of a steel mandrel.
The dome (button) head profile offers a wide bearing surface for stable load distribution, minimizing material distortion while delivering a smooth, clean appearance. AL5056 aluminum is stronger and more crack‑resistant than softer aluminum grades, making it exceptional for structural applications, sheet metal fabrication, and mixed‑material assemblies.
These rivets excel in applications requiring enhanced mechanical performance, vibration resistance, and long‑term reliability.
For large scale orders, request a quote to receive our best pricing available for your custom order.
AL5056 / Steel dome head blind rivets are commonly used for:
Sheet metal & aluminum assembly
HVAC systems, ducting & fittings
Automotive, trailer & body panel repair
Electrical enclosures, cabinets & junction boxes
General industrial fabrication
Machinery housings & equipment fastening
Lightweight structural applications
Metal‑to‑metal and metal‑to‑plastic joining
Key advantages:
AL5056 aluminum body offers higher strength vs. standard aluminum grades
Steel mandrel ensures superior shear and tensile performance
Corrosion‑resistant aluminum body suitable for indoor and outdoor use
Wide dome head provides excellent load spread and smooth finish
Reliable blind installation — perfect for limited‑access fastening
Strong vibration resistance for mechanical and automotive environments
Installation is quick using standard rivet tools. As the mandrel is pulled, the AL5056 body expands securely inside the hole, forming a permanent, tamper‑resistant joint.
Available in a full range of diameters, grip ranges, and lengths to match diverse assembly requirements.
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