Why Use A Heli-Coil Insert? What makes Heli-Coils so good is their unique design. The wire is diamond shaped, which features a 60-degree outside thread angle to grab and hold the wall of the hole ...

HeliCoil makes stainless steel, spring-like thread inserts that replace the original threads. These come in kits with a number of inserts, an installation tool, and a tap to cut the threads the ...

What happens when a broken bolt or screw extraction turns into threads damaged beyond repair? Damaged threads can sometimes be chased and cleaned up with a thread chaser or tap.

You've cross threaded, over-tightened, or simply stripped the threads right out of the hole. That's a big oops. Fear not, it's possible, if not super convenient, to fix it. But what's the best method?

The Heli-Coil insert is a clever idea where you drill out the damaged threads, tap the hole, and screw in the precision Heli-Coil threaded insert.

We show you how to repair crankshaft threads after overzealous disassembler stripped out the lower crank bolt on this 2013 Sierra truck (aka ZedSled).

The Heli-Coil insert is screwed into the tapped threads until seated. It is suggested you use Permatex Threadlocker on the outside diameter of the Heli-Coil insert to ensure security.