1191-6CN HELICOIL Inserts Tap

Review HELICOIL 40 3/8-24 Inch Fine Inserts 3/8 Tap

The Helicoil 1191-6CN 40 3/8-24 inserts are a crucial solution for repairing stripped or damaged threads in a 3/8 inch by 24 tpi (threads per inch) hole. These inserts are manufactured by Helicoil, a renowned brand known for its high-quality thread repair products.

The 1191-6CN inserts are specifically designed for use in steel and other ferrous materials. Each insert comes with a 40 thread pitch and a tap size of 3/8 inch by 24 tpi. These dimensions ensure a precise fit for the damaged thread, guaranteeing a secure and durable repair.

The Helicoil 1191-6CN inserts employ a unique helical design that intertwines with the existing threads, forming a strong bond and enhancing the overall strength of the repaired area. This design also allows for easy installation and ensures that the new threads can withstand the same torque and load capacity as the original threads.

Each insert is made from high-strength alloy steel, providing superior wear resistance and ensuring a long-lasting repair. The inserts come pre-tapped, meaning that the tap hole is already present, simplifying the installation process and reducing the likelihood of errors.

The Helicoil 1191-6CN inserts are an ideal solution for various applications, including automotive, industrial, and marine industries. They can be used to repair damaged threads in engine blocks, transmissions, differentials, and other critical components, ensuring that the machinery remains operational and productive.

In conclusion, the Helicoil 1191-6CN 40 3/8-24 inserts offer a reliable and efficient means of repairing damaged threads in a 3/8 inch by 24 tpi hole. With their unique helical design, high-strength alloy steel construction, and pre-tapped convenience, these inserts provide a durable and long-lasting solution that is essential for maintaining the functionality and longevity of various machinery and components.

Helicoil 1191-6CN 40 3/8-24 inserts are thread repair inserts used to restore damaged threads in various applications. Here are the pros and cons of buying these inserts:

1. Easy to install: Helicoil inserts can be installed without removing the damaged part from the engine or machinery, which saves time and labor costs.

2. Durability: These inserts are designed to withstand high loads and pressures, making them suitable for use in heavy-duty applications.

3. Improve thread strength: Helicoil inserts provide a new, stronger thread that can handle higher torque loads than the original thread.

4. Cost-effective: Compared to replacing the entire part, using Helicoil inserts is a more cost-effective solution for repairing damaged threads.

1. Limited size availability: Helicoil inserts come in specific sizes, and it may be difficult to find the exact size needed for a particular application.

2. Requires specialized tools: Installing Helicoil inserts requires specialized tools, which can add to the overall cost of the repair.

3. Risk of over-tightening: Over-tightening the Helicoil insert can damage the surrounding material or create leaks, so it's essential to follow the manufacturer's instructions carefully.

In conclusion, Helicoil 1191-6CN 40 3/8-24 inserts offer several advantages, including ease of installation, durability, improved thread strength, and cost-effectiveness. However, their limited size availability, the need for specialized tools, and the risk of over-tightening are potential drawbacks.

If you frequently encounter damaged threads in your work or applications and require a reliable and cost-effective solution, investing in Helicoil inserts may be a wise decision. However, it's essential to consider the cons and ensure you have the necessary tools and knowledge to install them correctly.

Overall recommendation: Helicoil 1191-6CN 40 3/8-24 inserts are a valuable addition to any toolbox for repairing damaged threads in various applications. Their benefits, such as ease of installation, durability, improved thread strength, and cost-effectiveness, outweigh the limitations, making them a recommended choice for thread repair needs.

Details:

Comes with 40 coils and a tap to match. All are Helicoil branded.

specifications threadtoollot:

• for years: 2024
• brand: Helicoil
• mpn: 1191-6cn
• part type: Tap
• number of pieces: 40

payments threadtoollot:

• credit card: diners-club
• wallet: apple-pay
• other

offer threadtoollot:

• started: july 31, 2025
• sold #: 17
• options: ship-to-home
• prices: $10.90–$67.94
• item condition:
  • New – Open box
  • New
  • Used
• availability: in stock
• in stock #: 5

general threadtoollot:

• category: Auto Parts > Supplies > Hand > Threading Tools

shipping threadtoollot:

• transit: 4-9 days
• class: standard
• service: usps ground advantage
• carrier: usps
• type: calculated

returns threadtoollot:

• policy: no returns

seller threadtoollot:

• rating: 100.0%
• # reviews: 521
• city: dunkirk, new york