How do washers (for screws) work, and why?
In: Engineering
they have a few functions. the most obvious is that they keep the head of the screw from being pulled into whatever they’re screwed into. since the washer is wider than the screw head, it distributes the force over a wider area.
they also maintain tightness. because they can expand and contract independent of what they’re screwed into, the washer can maintain pressure even while things are vibrating.
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