Heli Coil Products | 5521-4 | Inch Coarse Thread Repair Kit - 1/4-20 x .375

Specifications

This kit provides the essential components for repairing damaged threads. It includes a specific {manufacturers_part_number} for reliable performance.

• Manufacturer: Heli Coil Products Helicoil
• 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

Key Features

The Heli-Coil 5521-4 Inch Coarse Thread Repair Kit is engineered for precision and durability. It contains all necessary tools for repairing stripped or worn 1/4-20 inch coarse threads effectively.

• Complete Kit: Each kit comes with all components required for a successful thread repair, including the drill, tap, installation tool, and several stainless steel inserts.
• High-Quality Inserts: The included thread inserts are made from strong stainless steel, offering corrosion and wear resistance.
• Specific Thread Compatibility: Designed specifically for 1/4-20 inch coarse threads, ensuring a precise fit and reliable repair.
• Durable Repair: Once installed, the Heli-Coil insert creates a new thread that often exceeds the strength of the original.

Applications

This thread repair kit is suitable for a wide range of repair tasks, particularly where standard 1/4-20 inch coarse threads are used.

• Automotive Repair: Ideal for fixing stripped spark plug holes, engine block threads, transmission casings, and other automotive components.
• Machinery Maintenance: Used in industrial settings to restore threads in equipment, tools, and machinery, extending their operational life.
• Marine Applications: Effective for repairing threads in boats and marine engines, where corrosion resistance is beneficial.
• General Fabrication: Provides a robust solution for damaged threads in various metal fabrication and assembly projects.
• DIY Projects: Suitable for hobbyists and homeowners tackling repairs on lawnmowers, appliances, and other household items.

Benefits

Employing the Heli-Coil Inch Coarse Thread Repair Kit offers multiple advantages for maintaining and restoring threaded connections.

• Restores Damaged Threads: Effectively repairs stripped, worn, or cross-threaded holes, allowing for secure reassembly.
• Saves Money: By repairing existing parts, the kit helps avoid the higher cost and inconvenience of replacing expensive components.
• Enhances Thread Strength: The stainless steel inserts often create a thread that is stronger than the original parent material, increasing resistance to wear and stripping.
• Ensures Secure Fastening: Provides a reliable and durable threaded connection, preventing fasteners from loosening under vibration or stress.
• Increases Component Lifespan: Extends the usability of parts and equipment by restoring critical threaded connections.