Rivetto cieco GESIPA VA A2 4x12 mm per 6,5–8,5 mm testa tonda piatta

Blind rivet GESIPA VA A2 4x12 mm for 6.5–8.5 mm flattened round head is a stainless steel A2 blind fastener designed to create a permanent joint when access is available from one side only. It is intended for applications where a low-profile, flattened round head is required and where materials to be joined fit the specified hole diameter and grip range. The rivet forms a secure, vibration-resistant connection suitable for a variety of sheet metal and assembly tasks.

Advantages

The stainless steel A2 material provides corrosion resistance suitable for many indoor and sheltered outdoor environments. The flattened round head offers a reduced bearing surface height while still distributing load across the fastening area. As a blind rivet, it allows installation from one side, simplifying assembly in confined or inaccessible locations. The design creates a permanent joint with good resistance to vibration and shear once set.

Suitable for

• Joining thin metal sheets and panels with a hole diameter compatible with the rivet dimensions
• HVAC installations where access is limited to one side
• Automotive bodywork repairs and fixtures requiring corrosion-resistant fastenings
• General assembly tasks in workshops and light manufacturing

Key specifications

• Material: stainless steel A2 (corrosion-resistant)
• Head type: flattened round head
• Rivet body diameter: 4 mm
• Grip range: suitable for 6.5–8.5 mm combined material thickness or specified application fit
• Length: 12 mm body length
• Installation type: blind (installed from one side)

How to use

Select a rivet size matching the hole diameter and combined thickness of the materials to be joined. Prepare the components by drilling or verifying the correct hole size and ensuring clean mating surfaces. Insert the rivet through the assembled parts until the head sits flush on the outer surface. Use a compatible blind rivet tool or rivet gun designed for 4 mm rivets; actuate the tool to set the rivet, forming the blind side bulge that secures the materials. After setting, remove the mandrel if required by the tool, and verify the joint is fully formed and the head sits correctly.

Recommendations

Use appropriate personal protective equipment and a rivet tool rated for stainless steel A2 rivets. Match the rivet grip range to the actual stack thickness, avoid overtightening with the tool, and inspect finished joints for proper deformation and secure seating to ensure long-term performance.