4.0mm x 12mm Flat head blind rivet, aluminum-steel

Flat Head Blind Rivets, Aluminium Body / Steel Mandrel (Pop Rivets)

Flat head blind rivets (often called pop rivets) provide a fast, permanent way to join sheet materials when you only have access to one side of the workpiece. Each rivet consists of a lightweight aluminium sleeve and a high‑strength steel mandrel. During installation, a rivet tool pulls the mandrel through the sleeve, causing the sleeve to expand and clamp the materials together; the mandrel then snaps off for a neat finish. The flat head design offers a broad bearing surface for a flush appearance and greater pull‑through resistance.

Key Features & Benefits

• Blind fastening: Installs from one side only, ideal for situations where the reverse side is inaccessible.
• Lightweight & strong: Aluminium sleeve resists corrosion and adds minimal weight; steel mandrel provides the tensile strength needed to pull and expand the sleeve.
• Flat head profile: Broad, low-profile head distributes load evenly and sits nearly flush with the surface for an unobtrusive finish.
• Reliable clamping: The mandrel snaps off at a calibrated force to ensure consistent clamping pressure.
• Versatile: Suitable for joining metal to metal, metal to plastic, and other dissimilar materials; works on sheet metal, automotive body panels, HVAC ducting, and general fabrication.
• Quick installation: Requires only a drill hole and a hand or pneumatic rivet gun; rivets can be installed in seconds, saving assembly time.

Applications

• Sheet-metal work
• Construction
• Automotive repair
• Electronics enclosures
• Furniture assembly
• DIY projects

Summary

Flat head aluminium/steel blind rivets deliver a strong, vibration-resistant joint with minimal effort. They are lightweight, corrosion-resistant, and easy to install, making them an excellent choice for professional and home projects where a reliable and tidy fastening solution is needed.