Lock Nuts DIN 439 are precision-engineered thin hex nuts designed to prevent loosening under vibration or dynamic loads. Manufactured according to DIN 439 standards, these nuts are ideal for applications requiring a secure and tight fastening in compact spaces. Made from high-quality mild steel, stainless steel (SS304/SS316), or zinc-plated steel, they ensure excellent corrosion resistance and long-lasting performance.

The low-profile design allows them to be used as a jam nut—paired with a standard nut to create a strong, vibration-proof lock on threaded assemblies.

Features:

• Standard: DIN 439 (Thin Lock Nut)

• Material: Mild Steel / SS304 / SS316 / Zinc Plated

• Thread: Metric coarse or fine thread

• Prevents loosening under vibration

• Compact design for space-saving assemblies

Applications:
Commonly used in machinery, automotive components, electrical panels, construction fittings, and industrial equipment, where vibration resistance and secure locking are essential.