(25) Bulloni flangia esagonali seghettati grado 5 1/4-20x2-1/2 e (25) dado flangia serr 1/4-20
1/4-20x2-1/2 Hex Flange Bolts Grade 5 Serrated - Zinc Plated - Full Thread. 1/4-20 Serrated Hex Flange Nuts - Zinc Plated. These are not second quality fasteners that were previously rejected or rescued from a scrap yard.