RS PRO Plain Stainless Steel Locknut Nylon Insert M12, Width 19mm, Height 12mm, DIN 985 521-973

RS PRO 521-973 Plain Stainless Steel Locknut M12 is engineered for secure fastening in demanding industrial and commercial environments, including automotive and machinery applications. Constructed from robust A2 stainless steel with a plain finish, it combines corrosion resistance with strength.

The locknut incorporates a glass-filled nylon insert, which deforms to the fastener threads and prevents loosening under dynamic loads and heavy vibration conditions, as defined by DIN 985 standards. This design negates the need for thread locking adhesives, simplifying application.

With dimensions of 19mm width and 12mm overall height, this M12 locknut offers precise fitment, ensuring secure joints particularly in assemblies involving softer materials such as wood or plastics. The nylon insert also reduces surface pressure damage and maintains a consistent clamp load.

Use cases for this Locknut include securing components in industrial machinery, automotive assemblies, and domestic appliances such as washers and dryers where vibration is common. It is suited for heavy-duty fastening where reliability is critical over long periods.

Though reusable, the nylon insert's effectiveness diminishes with repeated usage; therefore, replacement is recommended after removal to ensure optimal locking performance. The product is manufactured in China and adheres to relevant quality standards ensuring trusted performance.

Manufactured from A2 stainless steel for corrosion resistance and durability. Equipped with glass-filled nylon insert to maintain secure fastening under heavy vibration. Complies with DIN 985 standard ensuring consistent quality and compatibility.

Dimensions include 19mm width and 12mm overall height for precise fitting. Ideal for applications in industrial machinery, automotive, and domestic appliances. Resists loosening without the need for adhesive locking methods.

Suitable for use with soft materials such as wood and plastics to prevent damage. Rated for heavy-duty applications including environments with severe vibration. Discover more quality fasteners and industrial components from EnvMart's extensive RS PRO selection.