M5‑0.80 Metric Hex Serrated Flange Nut, Class 8, Coarse Thread, Plain Finish

Manufactured from Class 8 steel, this M5‑0.80 hex serrated flange nut provides strong, vibration‑resistant fastening in metric assemblies. The serrated flange bites into the mating surface to resist loosening, eliminating the need for a washer. Featuring a plain finish, it is best suited for dry, non‑corrosive automotive, industrial, and general‑purpose applications requiring secure locking performance.