Helicoil Harbor Freight (2024)

FAQs

Is a helicoil a permanent fix? ›

Heli-Coil^® Kits - Thread Repair Kits & Master Sets

Restore stripped threads easily and permanently with Heli-Coil thread repair kits and master sets. Heli-Coil application-specific thread repair kits make complex repairs manageable and are often the recommended solution by both domestic and foreign automakers.

The coils are wider than the tapped hole. They are inserted into the hole, and as the bolt is screwed down, the coil expands, creating a tight, firm seal against the threads. When properly installed, helical inserts create a permanent bond that is stronger than the original bolt fastening.

However, key inserts provide an alternative to helicoils and they have their own set of inherent benefits and flaws. Key inserts became popular because of the ability to quickly repair stripped or damaged threads without having to discard the original part.

Insert installation depth is dependent on the presence of a countersink (3/4 to 1-1/2 turns below the surface with a countersink and 1/4 to 1/2 turns below the surface without a countersink). Tangless CoilThread Insert installation is now complete.

Another disadvantage of helical coil type inserts is that they are sometimes harder to fit than a solid bush. This applies especially In deep or inaccessible holes.

The tang is a small segment of the end of the insert that extends into the middle of the coil. With tanged inserts, the tool uses the tang to grip the coil and screw it into place. Once the helicoil is installed, the tang is broken off and removed.

Can You Use LOCTITE^® 262™ Threadlocker? In short, the answer is yes.

Use HELICOIL® wherever low shear strength materials – such as aluminium or aluminium-magnesium alloys – are used. In these applications HELICOIL® thread inserts generate heat-resistant, wear-resistant and high-strength thread of the highest precision. No internal thread wear, even with frequent use.

In summary, while locking helicoils are generally not intended to be reused, there are some situations where they may be able to be removed and replaced. However, it is important to exercise caution when removing locking helicoils to avoid damaging the surrounding threads or material.

Removing helicoils is a very difficult task, but it can be done with a helicoil extraction tool.

Do you need a tool to install a Heli-Coil? ›

You'll need: A drill. A tap wrench. A screwdriver or an installation tool that comes with helicoil kits.

For a pass-through hole, the tab just falls out the other side. However, in a depth hole you need to ensure the tab pieces are removed from the hole.

But Helicoils are cheap to install and work well. If they are inserted correctly and the plugs are not allowed to corrode in-place they should last a lifetime.

The driving tangs of Heli-Coil inserts must be removed to eliminate their interference with the end of the assembled bolt. Heli-Coil tang break-off tools are available for use with inserts through 1/2" and 12mm metric nominal diameter.

Removing helicoils is a very difficult task, but it can be done with a helicoil extraction tool.

Though their depth is short and inherently weak, Heli-Coils are often made of strong materials, like stainless steel. They work well with aluminum, plastic, and other softer materials. But they're not strong enough to effectively fasten stainless steel parts unless they have a special coating.