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Understanding Door Hinge Pins: A Comprehensive Guide Door hinge pins play a vital yet typically overlooked role in the performance of doors. In spite of being small in size, these pins are essential in securing the door to its frame and enabling it to swing open and closed smoothly. This article explores the various kinds of door hinge pins, their functions, installation treatments, and common issues related to them. What Are Door Hinge Pins? Door hinge pins are round rods inserted through the knuckles of a