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Inch Coarse Thread Repair Kit - 5/16-18 x .469 - Heli Coil Products

Part #: 5521-5

The Heli-Coil 5521-5 Inch Coarse Thread Repair Kit provides a robust and permanent solution for damaged 5/16-18 threads in professional automotive and industrial settings. This comprehensive kit ensures reliable restoration of compromised fasteners, creating threads that often exceed the strength and durability of the original parent material. It is an indispensable tool for mechanics and technicians requiring dependable, long-lasting thread repairs.

Key Features

  • Complete Professional Repair: This 5/16 18 helicoil kit includes all essential components for a professional repair: a high-speed steel drill, a precision tap, an installation tool, and multiple stainless steel inserts.
  • Enhanced Thread Strength: Utilizing durable helical inserts, this kit creates threads highly resistant to wear, corrosion, and galling, often surpassing the strength of the original thread.
  • Precise 5/16-18 Inch Coarse Compatibility: Specifically engineered for 5/16-18 inch coarse threads with a .469-inch length, guaranteeing a precise and secure fit for a wide range of applications. This ensures a reliable 5/16 x 18 helicoil solution.
  • Permanent, Secure Solution: Engineered for lasting performance, Heli-Coil inserts prevent future loosening and maintain critical torque specifications, significantly extending component lifespan.

Applications

This 5/16 18 helicoil kit is designed for repairing damaged threads across various demanding professional environments:

  • Automotive Maintenance: Ideal for fixing stripped spark plug holes, engine block threads, cylinder heads, and transmission housings.
  • Industrial Machinery: Restores thread integrity in heavy equipment, critical machinery components, and essential tools.
  • Motorcycle & ATV Repair: Addresses common thread damage in recreational vehicles, ensuring secure assembly and component integrity.
  • Marine Applications: Provides reliable, corrosion-resistant thread repair for marine engines and equipment exposed to harsh conditions.

Specifications

  • Manufacturer: Heli Coil Products
  • Model Number: 5521-5
  • Thread Type: Inch Coarse
  • Thread Size: 5/16-18
  • Insert Length: 0.469 inches
  • Weight: 0.25 lbs
  • Dimensions: 8.5 x 3 x 1.75 inches
  • Product Type: Thread Repair Kit
We have 91 in stock Inventory available from other suppliers, prices may be different

$26.26

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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This product was added to our catalog on Monday 12 February, 2007.

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