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Understanding Door Hinge Pins: A Comprehensive Guide Door hinge pins play a vital yet frequently overlooked function in the performance of doors. Despite being small in size, these pins are critical in protecting the door to its frame and permitting it to swing open and closed smoothly. This post dives into the various kinds of door hinge pins, their functions, installation procedures, and typical issues associated with them. What Are Door Hinge Pins? Door hinge pins are cylindrical rods placed thro