M18‑1.50 DIN 439B Hex Jam Nut – Class 04, Extra Fine Thread, Plain Finish

M18‑1.50 hex jam nut manufactured to DIN 439B specifications from Class 04 steel, providing reliable strength and dimensional accuracy for metric fastening applications requiring extra fine thread engagement. Featuring an extra fine 1.50 mm thread pitch and a thin jam‑nut profile, it is designed for use as a locking nut against a standard hex nut or in space‑restricted assemblies where improved resistance to loosening and precise adjustment are required. Supplied in a plain (uncoated) finish, this jam nut is well suited for machinery, equipment assembly, maintenance, and general industrial applications requiring secure locking and dependable performance.