You'll want to make sure your lawn mower blade is securely attached, which means you may find the blade's connector is ...

If the bolt broke off inside the material and there's no part of the thread sticking out, you'll need to use a left-handed bit or even a bolt extractor in a process that involves a few steps.

The new, left-hand ... threads and locking lug recesses are integral with the receiver, a welcome reprieve for many traditionalists. Longitudinal raceways cut into the receiver guide the three-lug ...

The bolt is an M42 size with a 40 mm pitch, with grooves cut in both directions to allow left-handed and right-handed nuts to be threaded. The large pitch means that instead of a single continuous ...

See All 26 Photos 6.A bolt extractor is basically a super-coarse left-handed thread affair that screws into the bolt shank for removal. You may have to carefully apply heat to the casting or ...

The darned thing looked centered when we started. See All 32 Photos 6.The bolt extractor is a left-handed coarse thread tool that screws into the hole as shown. Carefully turn counterclockwise and ...

Q: Why do bicycles have standard right-hand threads on the right pedal, but left-hand threads on the left pedal? A lot of people believe this is to prevent the pedals from unscrewing and falling ...