1/2"-13 Hex Jam Nut, Grade 8, Coarse Thread, Plain Finish

The 1/2"-13 hex jam nut is made from high‑strength Grade 8 steel to deliver secure locking in high‑load and high‑vibration applications. Its thin jam‑nut profile and coarse thread make it ideal for tight‑clearance assemblies. The plain finish is suitable for dry, non‑corrosive automotive, industrial, and mechanical uses.