INSERT 1-1/4-7 - Heli Coil Products

The Heli-Coil K1185-20 INSERT 1-1/4-7 is a professional-grade, free-running helical screw thread insert designed for reliable thread repair and reinforcement in various materials. Manufactured from robust stainless steel, this insert provides a permanent, wear-resistant solution for damaged or weakened threads, restoring their integrity to an "as new" or superior condition. It ensures optimal fastener performance for demanding automotive and industrial applications.

Key Features

• Durable Stainless Steel Construction: Crafted from 18-8 (304) stainless steel, this insert offers exceptional corrosion resistance and high-strength performance, extending the lifespan of threaded connections.
• Precision Thread Restoration: Designed for 1-1/4"-7 UNC coarse threads, it creates a precise and strong internal thread, accommodating standard bolts and screws.
• Enhanced Thread Strength: Ideal for strengthening tapped holes in softer materials such as aluminum, magnesium, cast iron, and plastics, preventing future stripping or wear.
• Wide Temperature Range: Capable of withstanding extreme temperatures from -320°F to +800°F, ensuring reliability in diverse operating environments.
• Free-Running Design: Provides a smooth, uninhibited thread engagement, allowing for easy assembly and disassembly without binding.
• Professional-Grade Quality: Adheres to stringent quality and engineering standards, making it a dependable choice for professional technicians and mechanics.

Applications

This Heli-Coil thread repair insert is an essential component for professionals across various sectors. It is widely used for repairing stripped or damaged threads in automotive engines, transmissions, and chassis components, as well as in industrial machinery and equipment. Its ability to create stronger threads in lightweight materials makes it invaluable in aerospace and defense applications where material integrity is critical.

Specifications

• Manufacturer: Heli Coil Products
• Model Number: K1185-20
• Thread Size: 1-1/4"-7 UNC
• Material: 18-8 (304) Stainless Steel
• Overall Insert Length: 1.875" (1-7/8")
• Length to Diameter Ratio: 1.5D
• Drill Size (for installation): 1-9/32"