Helicoil R1191-5 Thread Insert 5/16 x 24 for Case Bolt and Generator – Pack of 12

Restore damaged case bolt and generator threads with the Helicoil R1191-5 thread insert. Engineered for 5/16 inch x 24 threads, each insert is 0.469 inches long and includes a 21/64 inch drill bit for proper installation. The kit comes with 12 inserts, ready for multiple repairs in automotive, machinery, and industrial equipment contexts.

Designed to repair and reinforce damaged threads, the R1191-5 provides secure fastening and reliable performance where thread integrity is critical. Manufactured in the USA, Helicoil inserts are built from durable materials to withstand demanding mechanical environments and disassembly cycles.

Key specifications at a glance:

• Thread size: 5/16 in x 24
• Length: 0.469 in
• Quantity: 12 inserts
• Drill size: 21/64 in
• Made in the USA

Ideal for technicians and maintenance professionals working on machinery, automotive components, or industrial equipment that require robust thread repair. The inserts install quickly and restore original thread strength without extensive disassembly.

Accessory items to complement repair tasks include the Mini Motorcycle Lift Tool, Gasoila Red Varnish Sealant, and Gasgacinch Gasket Sealer.

Heli-Coil thread inserts only for case bolt and generator with thread size of 5/16 inch X 24 and length of.469 inch. Includes 12 inserts drill size 21/64.

The Helicoil R1191-5 thread insert is designed specifically for repairing and reinforcing case bolt and generator threads with a size of 5/16 inch by 24 threads per inch. Constructed with precision from high-quality materials, these inserts provide a durable solution for restoring stripped or damaged threads, ensuring secure fastening and reliable performance. Each insert measures approximately 0.469 inches in length, making them suitable for a variety of applications where thread integrity is critical. The package includes 12 inserts, along with a drill bit size of 21/64 inch, facilitating easy installation and ensuring proper fitment. Manufactured in the USA, Helicoil products are known for their quality and reliability in demanding mechanical environments.

This set of thread inserts is ideal for technicians and maintenance professionals working on machinery, automotive, or industrial equipment requiring robust thread repair solutions. The inserts are designed for quick installation, restoring original thread strength without the need for extensive disassembly or component replacement. Whether you're repairing a stripped thread or enhancing the longevity of your equipment, these Helicoil inserts deliver a dependable solution that extends service life and maintains optimal performance.

In addition to the thread inserts, accessory items such as the Mini Motorcycle Lift Tool, Gasoila Red Varnish Sealant, and Gasgacinch Gasket Sealer are recommended to complement your repair tasks. These accessories assist in preparation, sealing, and securing components, ensuring a comprehensive approach to maintenance and repair projects. Trust Helicoil for quality parts that meet professional standards and deliver lasting results in demanding applications.

Features:

• Designed for 5/16 inch x 24 thread size applications

• Includes 12 high-quality thread inserts

• Comes with a drill size of 21/64 inch for easy installation

• Constructed from durable materials for long-lasting repairs

• Manufactured in the USA ensuring quality and reliability

• Ideal for repairing and reinforcing damaged threads in machinery and equipment