What is a Tangless HeliCoil?

Tangless CoilThread inserts are a continuous, helically-coiled, bi-directional, wire design. This innovative design allows for installation using a drive notch located at each end of the coil insert instead of a tang located at one end of the insert.

What sizes do helicoils come in?

Heli-Coil has complete coverage of inch and metric thread repair sizes. Available from stock are Inch Coarse kits in sizes #8 through 1-1/2“, Inch Fine kits in sizes #10 through 1-1/2, Metric Coarse kits in sizes M3 through M20, and Metric Fine kits in sizes M8 through M20.

What is the difference between HeliCoil and insert?

Unlike helicoils which have a slim profile, inserts are extremely large and require a large external thread for installation. The second most common flaw is the removal process. Removal requires drilling out material, bending the key insert and utilizing a screw extractor to remove the insert.

What is difference between Tanged and Tangless helicoil?

Tangless inserts are identical, in form, fit, and function to conventional tanged inserts (e.g.,CoilThread, Heli-Coil & Recoil). In fact,Tangless CoilThread inserts are identical to tanged inserts in every way except for their method of installation & removal.

How do I know what size HeliCoil to buy?

Drill out the damaged threads using the drill supplied in the kit. Drill to a sufficient depth to accommodate the insert length and the bolt or screw being used. Tap the hole using the Heli-Coil tap supplied in the kit. Check the size on the shank of the tap to be sure it is the right size.

Do HeliCoils work in aluminum?

An installed HeliCoil threaded insert provides a secure threaded connecting point for accessories on engines with aluminum heads.

What is a Tanged insert?

Tanged Helical inserts or Tanged Helicoil inserts have a straightened end called a “Tang” that crosses through the inside diameter of the fastener and is used to complete the installation process. The Tang is broken off of the coil thread fastener after installation.

Do you use Loctite on HeliCoils?

Apply LOCTITE® 2620™ Threadlocker into the helicoil 2620™ was selected because it is a high-strength threadlocker that can handle the high temperatures the headers will face.

What are Heli-Coil® tangless® inserts?

There are two styles of Heli-Coil ® tangless ® inserts. “Free-Running” tangless ® inserts provide a smooth free-running thread. The “Screw-Locking” tangless ® insert provides self-locking torque on the male member by a series of “chords” on one or more of the insert coils.

What is the tangless-free running Heli-Coil part number?

TANGLESS – FREE RUNNING Inch Coarse HELI-COIL® Part No. NAS Part No. Equivalent MS Part No. (Tanged – Reference Only) T1185-02C086 NAS1130-02-10 MS122095

What is a tangless insert?

Tangless design means no tangs to break off, retrieve, or lose. Eliminates the need to purchase tang-break off tools, or experience time loss due tanged retrieval form blind holes. Substantial installation cost savings over conventional tanged helically-coiled inserts (CoilThread, Helicoil, Recoil, etc…).

What sizes are available for the new tangless coilthread inserts?

The new 0-80, 1-64, and M2 Tangless CoilThread inserts are currently available in free-running 1, 1.5 and 2 diameter nominal lengths. STI taps, STI gages, installation, and non-destructive KATO removal tools for the 0-80, 1-64, and M2 Tangless CoilThread inserts are also available.