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 off ...

Engineers looking for left-hand threaded shaft collars now have a new supplier: Ruland had added them in metri and inch sizes to it offerings. This will give designers more flexibility to work with ...

Fastener thread sizes are either left or right handed. So what are the differences? Essentra Components have designed this guide to answer that question. The guide will also explain fastener thread ...

Mower blades themselves aren't threaded, but rather the fastener that holds the blade in place can be either right or left-threaded. Right-hand threaded fasteners tighten clockwise and loosen ...