ISO 15979 blind rivet, 3.2 x 13 mm, Article number 15979320131. Property class / material: st/st, surface finish zinc plated. Blind Rivet manufactured to ISO 15979. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution. Applications: permanent joining of sheet metal, brackets and light structures in fabrication, plant maintenance and marine outfitting.