Insert 1/4-20 - 12/Pk - Heli Coil Products

The Heli-Coil R1185-4 Insert Pack delivers a robust, professional-grade solution for repairing and reinforcing 1/4-20 UNC threads in demanding automotive and industrial environments. Designed for professional technicians, these stainless steel coil inserts restore stripped or damaged threads to their original size and significantly enhance pull-out strength in softer materials like aluminum and cast iron, ensuring reliable and long-lasting thread repairs.

Key Features

• Accurate 1/4-20 Thread Restoration: Precisely restores stripped or worn 1/4-20 internal threads to standard UNC dimensions, ensuring proper fastener engagement and torque accuracy in critical assemblies.
• Durable Stainless Steel Construction: Manufactured from corrosion-resistant stainless steel, these inserts withstand exposure to oils, coolants, chemicals, and environmental contaminants in harsh service environments.
• Enhanced Thread Strength: Creates threads that are often stronger and more wear-resistant than many OEM tapped holes, ideal for high-vibration and high-cycle conditions found in engine compartments and heavy machinery.
• Consistent, Professional Installations: Engineered for seamless integration with corresponding Heli-Coil installation tools and tap sizes, facilitating repeatable, high-quality installations and minimizing rework for professional mechanics.

Applications

These inserts are ideal for restoring 1/4-20 threads in critical components such as engine covers, various brackets, equipment housings, small castings, specialized tooling fixtures, and control panels where thread integrity is paramount. They are commonly utilized in professional automotive repair bays, industrial maintenance shops, and fleet service operations to salvage valuable components, avoiding costly replacements.

Specifications

• Manufacturer: Heli-Coil Products
• Model Number: R1185-4
• Thread Size: 1/4-20 UNC
• Quantity: 12 inserts per pack
• Material: Corrosion-resistant stainless steel
• Weight: 0.1 lb
• Package Dimensions: 2.6 x 2.5 x 0.7 in