... 3.Head type: round 4.Material: steels RIVETS 1. Materials: Aluminum (5050)/ steel/ stainless steel2. Finish: baking vanish,3. Head type ... head,4. Diameter: 3.2mm, 4.0mm, 4.8mm, 6.4mm, (1/8, 5/32, 3/16, 1/4)5. Length ... , shipbuilding, machinery, automobile manufacture, household and so on factory ALL color aluminum white blind rivet aluminum color