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5/16-18 FREE SPINNING WASHER NUT 3/4OD - AUVECO - Auto Vehicle Parts LLC

Part #: 15350

The AUVECO 15350 5/16-18 Free Spinning Washer Nut with a 3/4" OD is engineered to meet the rigorous demands of professional automotive and industrial applications. This specialized fastener ensures secure and consistent clamping, offering the reliable OE fit and function that professional technicians and mechanics trust. Its design helps to prevent damage to mating surfaces while providing robust vibration resistance.

Key Features

  • Integrated Free-Spinning Washer: Designed to distribute load evenly, prevent marring of mating surfaces, and reduce loosening caused by vibration, ensuring a more secure and lasting connection.
  • Precise 5/16-18 Threading: Provides a strong, secure connection compatible with standard 5/16-18 bolts and studs, crucial for reliable assembly.
  • 3/4" Outer Diameter (OD): Offers broad surface contact for enhanced stability and secure fastening in various automotive and industrial assemblies.
  • Professional-Grade Construction: Manufactured by AUVECO, ensuring durability and performance that consistently meets or exceeds original equipment specifications.
  • Corrosion Resistance: Built to withstand harsh operating conditions and environments common in automotive repair and industrial settings.

Applications

This versatile free-spinning washer nut is ideal for a wide range of fastening tasks across automotive, truck, marine, and general industrial maintenance. Common applications include securely fastening panels, brackets, engine components, undercarriage parts, and various mechanical assemblies where a robust, vibration-resistant, and surface-protective connection is critical. It is particularly beneficial in scenarios requiring protection of painted or finished surfaces during installation and service.

Specifications

  • Manufacturer: AUVECO - Auto Vehicle Parts LLC
  • Model Number: 15350
  • Thread Size: 5/16-18
  • Outer Diameter (Washer): 3/4"
Only 3 left in stock - order soon
List: $23.67 Save: $4.92

$18.75

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This product was added to our catalog on Friday 12 June, 2026.

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