Viti Din 933 16 X 100 Alluminio P60 oabic (anodized and yellow-green chromates) 5000 Pz. Dadi Din 934 M16 Alluminio P60 oabic (anodized and yellow-green chromates) 5000 Pz. Rondelle NFE 25-513 M16 Alluminio AG3 BRUT 5000 Pz.