aluminum blind rivet 1.Diameter: 3.2-6.4mm. 2.Length: 6-30mm. 3.Head type: round. 4.Material:alumi aluminum blind ... flange head,4. Diameter: 3.2mm, 4.0mm, 4.8mm, 6.4mm, (1/8, 5/32, 3/16, 1/4)5 ... boxes/ carton, without pallets,3. 1000 or 500 pcs/ box, 6 boxes/ carton, with palletsAdvantage: Riveting solid, simple operation, large tensile ...