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ELI5: In most machines and appliances, why does an engineer choose, for example, a Philips head screw for one component but a flathead or hex for another? One would think that what matters are the specs of the screw itself rather than the head.
ELI5: In most machines and appliances, why does an engineer choose, for example, a Philips head screw for one component but a flathead or hex for another? One would think that what matters are the specs of the screw itself rather than the head. * /r/explainlikeimfive
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