Blind Rivet GESIPA Polygrip 4.8x17 Al/St large flange, for grip 6.5–13.0 mm, pack of 250

GESIPA Polygrip blind rivets 4.8x17 mm with an aluminium body and a steel mandrel are designed for permanent blind fastening where access is available from one side only. These rivets feature a large flange that distributes load over a greater surface area and are specified for material grip thicknesses between 6.5 and 13.0 mm. Supplied in a pack of 250, they are intended for joining overlapping sheets, profiles and assemblies in industrial and construction applications.

Advantages

The aluminium body provides corrosion resistance and reduced weight while the steel mandrel ensures reliable setting and secure clinching. The large flange reduces the risk of pull-through on softer materials and increases bearing area for a more stable connection. Delivered in a bulk pack of 250 pieces, these blind rivets offer consistent dimensions and uniform setting behaviour for repeatable installations.

Suitable for

• Joining overlapping metal sheets and panels
• Fastening profiles, frames and enclosures
• Applications with access from one side only (blind joints)
• Installations requiring a large bearing surface to prevent pull-through

Key specifications

• Rivet diameter: 4.8 mm
• Overall length: 17 mm
• Body material: aluminium
• Mandrel material: steel
• Flange type: large (wide) flange
• Recommended grip range: 6.5–13.0 mm
• Package quantity: 250 pieces

How to use

Select a rivet whose diameter and grip range match the combined thickness of the materials to be joined. Drill a hole of the appropriate diameter through the overlapping parts, insert the rivet through the hole until the flange sits flush on the surface, and position the rivet gun or setting tool on the mandrel. Operate the blind rivet tool according to the manufacturer's instructions until the mandrel snaps and the formed blind head secures the joint. After setting, remove any mandrel remnants as required and inspect the joint for correct deformation and firm clamping.

Usage recommendations

Use corrosion-compatible materials and surface preparation appropriate to the application environment. For soft or thin base materials, ensure the large flange is sufficient to prevent pull-through; consider additional backing or larger bearing plates if necessary. Match rivet diameter and grip range precisely to the material stack for optimal performance.