The 5D30 Blind RIV ALM Closed 4.8x21mm is a precision blind rivet engineered for demanding applications requiring reliable fastening in confined spaces. Featuring a 4.8mm diameter shaft and 21mm length, this aluminum rivet delivers consistent performance across sheet metal, composite, and lightweight structural assemblies. The closed-end design ensures maximum holding strength while minimizing material deformation. Ideal for aerospace, automotive, and industrial manufacturing where quality fastening is non-negotiable. Stock this essential component for projects demanding professional-grade riveting solutions.