Qualfast: 4.0X12MM Aluminium Lage Head Rivet (Box 50) Large Head For all applications of blind riveting. Aluminium rivet head with steel mandrel. Medium strength, use with aluminium and where rust is a problem. Select grip based on thickness of material to be riveted. MPN: QFT-644-5056L EAN: 5036140321588 4.0X12MM Aluminium Lage Head Rivet (Box 50) Attributes: Box Quantity: 50 Head Shape: Large Head Length: 12mm Material: Aluminium Rivet Diameter: 4.0mm Surface Treatment: Plain