Blind Rivet GESIPA 5×8 mm Large Flange K14 KS for 2.5–4.5 mm Material, Pack of 250

Blind rivet GESIPA 5×8 mm Large Flange K14 KS in a pack of 250 is a one-sided fastening element designed for permanent joining of thin to medium-thickness materials. The rivet features a large flange (grosskopf) head that increases bearing surface and reduces the risk of pull-through on softer or sheet materials. Intended for use where a vibration-resistant and tamper-proof connection is required, this rivet works with material thicknesses from 2.5 to 4.5 mm and is suitable for metal and sheet assembly operations.

Advantages

The large flange head provides improved load distribution and reduces deformation of the joining surface. The blind rivet design allows installation from one side, simplifying assembly in confined or inaccessible areas. Supplied in a pack of 250, the rivets are convenient for medium to large jobs and minimise downtime due to frequent reloading. Their design yields vibration-resistant joints appropriate for mechanical and structural applications.

Suitable for

• Joining sheet metal panels and thin plates
• Automotive bodywork repairs and assembly
• Electrical enclosure assembly and mounting brackets
• HVAC ductwork and metal fabrication
• General maintenance and repair tasks requiring a wide bearing surface

Key specifications

• Rivet head type: large flange (grosskopf)
• Mandrel/rivet body dimensions: 5×8 mm (diameter × grip length)
• Recommended material thickness range: 2.5–4.5 mm
• Pack quantity: 250 pieces
• Application method: blind (one-sided) installation

How to use

Prepare mating parts by aligning holes of the correct diameter for a 5 mm rivet. Insert the rivet through the assembled components until the large flange rests against the material surface. Use a compatible blind rivet tool to pull the mandrel until the rivet body deforms and forms a blind head on the far side; continue pulling until the mandrel snaps off. After installation, verify the flange sits flush and the connection is secure. For consistent results, check the rivet tool settings and inspect the first few rivets before continuing with batch installation.

Recommendations

Select a rivet hole with appropriate clearance and ensure material thickness is within the 2.5–4.5 mm range. Use a suitable blind rivet tool rated for 5 mm rivets and perform a sample joint to confirm clamp force and tool stroke. Avoid installing rivets in areas with extreme corrosion without proper surface treatment; for soft or fragile materials, consider backing or washer support if additional bearing area is required.