M20‑2.50 Metric Hex Serrated Flange Nut, Class 8, Coarse Thread, Plain Finish

Manufactured from Class 8 steel, this M20‑2.50 hex serrated flange nut provides strong, vibration‑resistant fastening for metric assemblies. Serrations on the integrated flange bite into the mating surface to help prevent loosening and eliminate the need for a separate washer. With a plain finish, it is best suited for dry, non‑corrosive automotive, industrial, and general‑purpose applications requiring secure locking performance.