NISSAN 63848-VD300 Fender Flare Retaining Spring Nut

The genuine NISSAN 63848-VD300 (Fender Flare Retaining Spring Nut / NUT-SPRING) is a premium-quality OEM fastener engineered specifically for the secure, vibration-free mounting of body components, particularly fender flares, wheel arch liners, and other protective plastic covers.

Key Features and Operating Principle

This specialized spring sheet metal nut plays a crucial role in securing the vehicle's exterior styling and protective elements. Unlike conventional threaded connections, the spring design maintains continuous tension to prevent screws and bolts from loosening due to road vibrations and shocks. The clip design facilitates quick and precise installation onto thin metal sheet edges or plastic profiles.

Technical Specifications

• Type: Sheet metal spring nut / Fender flare retainer clip (Nut-Spring)
• Material: High-strength spring steel with a corrosion-resistant coating for extended durability and environmental resistance
• Application: Fastening for fender flares, wheel arch mouldings, fender liners, and bumper stiffeners
• Manufacturer: NISSAN (Genuine OEM part)

Signs of Failure or Wear

Because fasteners are directly exposed to harsh environmental conditions (moisture, mud, road salt, temperature fluctuations), they may degrade over time. Common symptoms of failure include:

• Corrosion and Rusting: Weakens the metal structure, eventually leading to breakage.
• Loss of Elasticity: The spring clip loses tension, causing attached body panels to rattle, vibrate, or shift at higher speeds.
• Mechanical Damage: Fasteners are easily deformed or broken during maintenance or body repair procedures, making replacement with a new genuine part essential for proper reassembly.