The automated testing device contains a platform, a rotational plate on a top side of the platform, and, around the rotational plate and along a rotating direction of the rotational plate, an uploading member, a guiding member, an optical testing member, and an unloading member are provided and located in this sequence. The uploading member places fasteners in an upright manner on the top side of the rotational plate. The guiding member aligns the upright fasteners along a specific path. The optical testing member obtains and examines at least a profile image of each fastener. The unloading member screens out substandard fasteners and collects those qualified fasteners out of the rotational plate.
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