Some of the time, chasing the thread works great and it’s simple. All you do is thread the tap into the damaged bolt hole to straighten the threads. If it holds the specific torque rating ...

To clean rusty or stripped nuts and bolts, follow these steps: Grab a rethreading tap from the kit to restore threads on nuts ...

It won't fit early two-bolt mounting-system chassis unless you drill and tap the missing bolt-holes (B, or use an adapter kit). The passenger-side on this late Pontiac 400 block has no "leftover ...

To use it, you make a carefully drilled hole in the center of the snapped-off screw or what’s left of the bolt head, tap in the extractor using a ball-,peen hammer and then twist the extractor ...

The tap is screwed in one full turn and backed ... Once seated, the tang gets broken off, opening up the bolt hole. You may use Permatex’s Threadlocker on the outside threads for added security.

a through-hole tap, an installation tool, and a -inch drill bit. The kit's supplied -20 inserts are 0.750-inch in length (1 times the bolt diameter), which is usually considered sufficient ...

When inserted into a damaged bolt hole, or a newly drilled one, and then twisted, taps cut into the material and make fresh, new threads. The tool used for this operation is often a T-handle tap ...

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. When you’re drilling out the damaged fastener ...

the C-Sert’s internal threads are as hard as a tap, making them highly resistant to damage from bolts once installed. “Other products and attempts to repair did not sustain over time,” Dearing says.