The Heli-Coil 5521-4 Inch Coarse Thread Repair Kit is a professional-grade solution designed for permanent restoration of damaged 1/4-20 inch coarse threads in diverse materials. This comprehensive 1/4 inch helicoil kit provides all necessary components to perform durable, reliable thread repairs, making it an indispensable tool for automotive technicians and industrial mechanics. By utilizing high-quality inserts, this kit helps extend the lifespan of components and avoid costly replacements.
Key Features
- Complete Thread Repair Solution: Each kit contains all essential components for a successful repair, including a drill, a high-speed steel tap, an installation tool, and multiple stainless steel inserts.
- High-Strength Stainless Steel Inserts: The included thread inserts are crafted from robust 304 stainless steel, offering superior corrosion and wear resistance, and often creating a new thread that is stronger than the original.
- Precise 1/4-20 Inch Coarse Compatibility: Specifically engineered for 1/4-20 inch coarse threads, ensuring a precise fit and a secure, lasting repair across a variety of applications.
- Durable and Reliable Repair: Once installed, the Heli-Coil insert forms a permanent, conventional 60° internal screw thread that effectively resists loosening from vibration or stress.
Applications
This thread repair kit is suitable for a wide range of professional repair and maintenance tasks where 1/4-20 inch coarse threads are utilized:
- Automotive Repair: Ideal for restoring stripped threads in engine blocks, transmission casings, oil pans, exhaust manifolds, spark plug ports, and other critical automotive components.
- Machinery Maintenance: Used in industrial environments to repair threads in equipment, tools, and heavy machinery, enhancing their operational longevity.
- Marine Applications: Effective for maintaining boats and marine engines, where the corrosion resistance of stainless steel inserts is particularly beneficial.
- General Fabrication: Provides a robust solution for damaged threads in various metal fabrication, assembly, and maintenance projects.
Specifications
- Manufacturer: Heli Coil Products
- Model Number: 5521-4
- Thread Type: Inch Coarse
- Thread Size: 1/4-20
- Insert Length: 0.375 inches
- Product Weight: 0.15 lbs
- Product Dimensions: 4.5 x 3.7 x 0.4 inches
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