Screws may be commonplace, but that doesn't mean they're simple. A screw is any shaft with a corkscrew groove carved around its surface and, regardless of their design, screws are usually used to ...

At iFixit, Carsten Frauenheim writes: It’s hard to keep track of all the different types of screws, fasteners, bolts, bits, and bobs that hold our lives together, from our fridges and phones to cars ...

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