Insert 5/8-18 x .938 - 6/Pk - Heli Coil Products

The Heli-Coil R1191-10 threaded inserts provide a robust and permanent solution for repairing or reinforcing 5/8-18 threads in demanding automotive and industrial settings. Engineered for superior performance, these precision inserts establish a new, wear-resistant internal thread that often surpasses the original tapped hole's strength and durability. This package contains six .938-inch (approximately 15/16-inch) long inserts, ensuring adequate supply for critical repairs and workshop stocking.

Key Features

• Durable Thread Restoration: Effectively restores stripped, damaged, or cross-threaded 5/8-18 holes to their precise original size and pitch, eliminating the need to replace expensive components.
• Corrosion-Resistant Construction: Manufactured from 18-8 / 304 stainless steel, these inserts offer high tensile strength and excellent corrosion resistance, ensuring extended service life in harsh environments.
• Optimal Thread Engagement: With a precise .938" (approx. 15/16") length, these inserts ensure secure and consistent thread engagement within typical material thicknesses found in engine blocks, cylinder heads, and industrial housings.
• Professional-Grade Reliability: Designed for rigorous shop environments, these inserts create threads that withstand repeated assembly, disassembly, and specific torque requirements, guaranteeing long-term reliability.
• Convenient 6-Pack: This multi-pack supports multiple repair tasks, streamlines fleet maintenance, or allows for efficient stocking of frequently used thread sizes.

Applications

These Heli-Coil R1191-10 inserts are essential for professional technicians, machinists, and maintenance teams requiring dependable 5/8-18 thread repair or reinforcement in aluminum, cast iron, and steel components. Common applications include:

• Automotive engine blocks, cylinder heads, transmission, and differential housings.
• Heavy-duty truck and industrial powertrain components.
• Machinery bases, gearboxes, and equipment covers in plant maintenance operations.
• New fabrications where a stronger, more wear-resistant internal thread is required from the outset.

Specifications

• Manufacturer: Heli-Coil Products
• Model Number: R1191-10
• Thread Size (Internal): 5/8-18
• Insert Length: .938" (approx. 15/16")
• Quantity: 6 inserts per package
• Package Weight: 0.75 lb
• Package Dimensions: 3.5" x 2.75" x 1.25"