The Gesipa 216303803 blind rivet is a high-quality blind rivet designed for secure and durable fastening applications in various materials. This rivet features a 4.8 mm diameter shank with a 25 mm length and a 16 mm head diameter, constructed from a combination of aluminium and steel materials that provide reliable strength and corrosion resistance. The aluminium body offers lightweight properties while the steel mandrel ensures proper setting and consistent performance. This package contains 250 pieces, making it suitable for professional workshops, industrial maintenance, and construction projects requiring multiple fasteners. The blind rivet design allows for installation from one side of the workpiece, making it ideal for applications where access to both sides is limited. The combination of materials provides good resistance to environmental factors while maintaining structural integrity. These rivets are compatible with standard blind rivet tools and are engineered to create permanent, vibration-resistant connections in materials such as sheet metal, plastics, and composite panels. The precise manufacturing ensures uniform dimensions and reliable setting characteristics for consistent results across all 250 pieces in the package. The product is categorized under fastening materials and represents a practical solution for assembly, repair, and fabrication tasks where traditional fastening methods may not be feasible. The aluminium-steel construction balances weight considerations with mechanical strength, making these rivets suitable for applications ranging from automotive repair to electrical enclosure assembly. Proper installation requires matching the rivet length to material thickness and using appropriate setting tools to achieve optimal clamping force and joint security.