1/2"-20 Hex Jam Nut, Grade 8, Fine Thread, Zinc Yellow Cr+6 Finish

The 1/2"-20 hex jam nut is manufactured from high‑strength Grade 8 steel to deliver secure locking performance in precision, high‑load applications. The fine thread provides increased holding power and accurate adjustment, while the thin jam‑nut profile is ideal for tight‑clearance or double‑nut assemblies. Finished with a zinc yellow Cr+6 coating, it offers enhanced corrosion resistance and easy visual identification for automotive, industrial, and mechanical environments.