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Complex difficulties arise when we assemble them again. It is a time consuming and convoluted task to match right screws for the right places. As a result of great difficulties and challenges evolving around us repeatedly, the color trace screw was devised. It is painted both on its head and back of the head with a specific color. When the screw is in contact with the surface that it is being screwed onto, solid ink on back of the head leaves its own color on the surface so that anyone can easily match right screws for the right places. In addition, it is provided with information such as a thickness of the screw on its head.
Seoul National University of Technology
Seoul, South Korea
Prof. Won sub Kim
Seoul National University of Technology
Seoul, South Korea
Ji hun Youn/SNUT/Seoul/KR,
Myeong hoon Lee/SNUT/Seoul/KR,
Jung uk Park/SNUT/Seoul/KR