... 2.Body:5050 5052 5056 5154 alu alloy 3.Size:4.8x20mm 4.Quality assurance Aluminium blind rivetsType:open end, dome ... headMaterial: 5050# Aluminium rivet body, Steel mandrelSize: 4.8 x 20 mmFinishing: Zinc PlatedPacking: 250 pcs/box, ... flat headFinishingZinc plated, polishing, coatedDia.3.2 mm, 4.0 mm, 4.8 mm, 6.4mmAlso, we are able to ... and better quality Aluminium Steel blind rivets (4.8 x 20)