A Lock Nut DIN 439 / ISO 7042 is a low-profile hex nut designed for applications where space is limited and secure locking is required. Its reduced height makes it ideal for use as a jam nut, commonly paired with standard hex nuts to prevent loosening caused by vibration or dynamic loads.

Lock nuts are widely used in mechanical assemblies where reliability, precision, and space efficiency are critical. Their simple yet effective design ensures strong fastening performance without adding bulk.

Available Sizes:

Metric: M6 to M36

Inch: 1/4″ to 2″

🔧 Key Features of Lock Nut DIN 439 / ISO 7042

Caption: “Low Profile, High Reliability”

Slim hex design ideal for confined and space-restricted applications.

Commonly used as a jam nut to lock standard hex nuts in position.

Provides effective resistance against loosening under vibration.

Hexagonal shape allows easy tightening with standard spanners or wrenches.

Available in various materials and finishes (MS, Stainless Steel, High Tensile, Zinc Plated, Hot Dip Galvanized).

Manufactured in accordance with DIN 439 / ISO 7042 standards for accuracy and consistency.

🏗️ Applications of Lock Nut

Construction: Steel structures, bridges, and foundations.

Machinery: Assembly of industrial equipment and heavy machines.

Automotive: Vehicle parts and engine components.

Electrical & Plumbing: Supports, brackets, and fixtures.